Quarterly Report (10-q)

Table of Contents
P1DfalseQ20001415311--12-31Rates shown represent discount rate at the time of purchase.All or partial amount pledged as collateral for swap agreements.All or partial amount pledged as collateral for foreign currency forward contracts.shown represent discount rate at the time of purchase.The operations include the activity of ProShares UltraPro 3x Crude Oil ETF through April 3, 2020, and ProShares UltraPro 3x Short Crude Oil ETF through April 13, 2020, the date of liquidation, respectively.Although the Funds’ shares may continue to trade on secondary markets subsequent to the calculation of the final NAV, these times represent the final opportunity to transact in creation or redemption units for the six months ended June 30, 2021.On Monday, October 26, 2020 each Fund changed its NAV calculation time from 4:15 p.m. (Eastern Time) to 4:00 p.m. (Eastern Time).Includes cumulative appreciation (depreciation) of futures contracts as reported in the Schedule of Investments. Only current day’s variation margin is reported within the Statements of Financial Condition in receivable/payable on open futures.Percentages are annualized.See Note 1 of these Notes to Financial Statements.The amount shown for a share outstanding throughout the period may not accord with the change in aggregate gains and losses during the period because of timing of creation and redemption units in relation to fluctuating net asset value during the period.Market values are determined at the close of the applicable primary listing exchange, which may be later than when the Funds’ net asset value is calculated.Percentages are not annualized for the period ended June 30, 2021.The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.95%, and 0.95% if brokerage commissions and futures account fees were excluded.The expense ratio would be 0.95%, 0.95%, 0.95%, 0.95%, 0.85%, and 0.85% if brokerage commissions and futures account fees were excluded.Percentages are not annualized for the period ended June 30, 2020.The expense ratio would be 0.95%, 0.95%, 0.96%, 0.95%, 0.85%, and 0.85% if brokerage commissions and futures account fees were excluded.Amount represents greater than $(0.005).Reflects the floating financing rate, as of June 30, 2021, on the notional amount of the swap agreement paid to the counterparty or received from the counterparty, excluding any commissions. Total Return Swap Agreements payment is due at termination/maturity.The positions and counterparties herein are as of June 30, 2021. The Fund continually evaluates different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.For swap agreements, a positive amount represents “long” exposure to the benchmark index. A negative amount represents “short” exposure to the benchmark index. 0001415311 2021-04-01 2021-06-30 0001415311 2021-01-01 2021-06-30 0001415311 2020-04-01 2020-06-30 0001415311 2020-01-01 2020-06-30 0001415311 2020-12-31 0001415311 2021-06-30 0001415311 2021-07-27 0001415311 2021-03-31 0001415311 2020-03-31 0001415311 2019-12-31 0001415311 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraYenMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-06-30 0001415311 us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2021-06-30 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:ReceivablesOnOpenFuturesContractsAndUnrealizedAppreciationOnSwapAgreementsMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesShortEuroMember 2021-06-30 0001415311 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraYenMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortEuroMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 us-gaap:NondesignatedMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:ProsharesUltraBloombergNaturalGasMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:ProsharesUltraGoldMember ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortEuroMember 2021-06-30 0001415311 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraYenMember 2021-06-30 0001415311 us-gaap:ForeignExchangeContractMember us-gaap:NondesignatedMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:CommodityContractMember ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember us-gaap:NondesignatedMember 2021-06-30 0001415311 ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:CitibankNaMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:CitibankNaMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:SocieteGeneraleSaMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:MorganStanleyMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:CitibankNaMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:CitibankNaMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:UbsAgMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember ck0001415311:MorganStanleyAndCoInternationalPlcMember 2021-06-30 0001415311 ck0001415311:GoldmanSachsMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:CitibankNaMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:LongMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:LongMember ck0001415311:UbsAgMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:YenContractMember ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:UbsAgMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:YenContractMember ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:EuroContractMember ck0001415311:GoldmanSachsMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:EuroContractMember ck0001415311:UbsAgMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:GoldmanSachsMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:GoldmanSachsMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:ShortMember ck0001415311:EuroContractMember ck0001415311:UbsAgMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:ShortMember ck0001415311:EuroContractMember ck0001415311:GoldmanSachsMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:ShortMember ck0001415311:UbsAgMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:CitibankNaMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UbsAgMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:GoldmanSachsMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:CitibankNaMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:CitibankNaMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:GoldmanSachsMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UbsAgMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:UbsAgMember 2021-06-30 0001415311 ck0001415311:GoldmanSachsMember ck0001415311:InternationalBasedOnIpathSeriesBSAndP500VixShorttermFuturesEtnInavIndexMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:UbsAgMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:GoldmanSachsMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:CitibankNaMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:GoldmanSachsMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:CitibankNaMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:GoldmanSachsMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 ck0001415311:SocieteGeneraleSaMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UbsAgMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-06-30 0001415311 us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:ShortMember us-gaap:FutureMember ck0001415311:VixFuturesCboeExpiresAugustTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:ShortMember us-gaap:FutureMember ck0001415311:VixFuturesCboeExpiresJulytwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:AustralianDollarFxCurrencyFuturesCmeExpiresSeptemberTwoThousandAndTwentyOneMember us-gaap:ShortMember ck0001415311:ProsharesUltraShortAustralianDollarMember us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:ShortMember ck0001415311:WtiCrudeOilNymexExpiresSeptemberTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:ShortMember ck0001415311:WtiCrudeOilNymexExpiresDecemberTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:ShortMember ck0001415311:WtiCrudeOilNymexExpiresJuneTwoThousandAndTwentyTwoMember 2021-06-30 0001415311 ck0001415311:NaturalGasNymexExpiresSeptemberTwoThousandAndTwentyOneMember us-gaap:ShortMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember us-gaap:ShortMember ck0001415311:GoldFuturesComexExpiresAugustTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:SilverFuturesComexExpiresSeptemberTwoThousandAndTwentyOneMember us-gaap:ShortMember ck0001415311:ProsharesUltraShortSilverMember us-gaap:FutureMember 2021-06-30 0001415311 ck0001415311:EuroFxCurrencyFuturesCmeExpiresSeptemberTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortEuroMember us-gaap:FutureMember us-gaap:ShortMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:ShortMember us-gaap:FutureMember 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:ShortMember 2021-06-30 0001415311 ck0001415311:WtiCrudeOilNymexExpiresSeptemberTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 ck0001415311:WtiCrudeOilNymexExpiresJuneTwoThousandAndTwentyTwoMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 ck0001415311:NaturalGasNymexExpiresSeptemberTwoThousandTwentyOneMember us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:WtiCrudeOilNymexExpiresDecemberTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 ck0001415311:GoldFuturesComexExpiresAugustTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraGoldMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember us-gaap:LongMember ck0001415311:VixFuturesCboeExpiresAugustTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:VixFuturesCboeExpiresJulytwoThousandAndTwentyOneMember us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:SilverFuturesComexExpiresSeptemberTwoThousandAndTwentyOneMember us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:FutureMember us-gaap:LongMember ck0001415311:VixFuturesCboeExpiresAugustTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:FutureMember us-gaap:LongMember ck0001415311:VixFuturesCboeExpiresJulytwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:VixFuturesCboeExpiresJanuaryTwoThousandAndTwentyTwoMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:VixFuturesCboeExpiresDecemberTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:VixFuturesCboeExpiresNovemberTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:VixFuturesCboeExpiresOctoberTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:FutureMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:LongMember us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 us-gaap:SwapMember 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoNinePercentageDueNovemberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroSixOnePercentageDueJulyFifteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFivePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneFourPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoSevenPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeThreePercentageDueNovemberElevenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourSixPercentageDueDecemberTwelveTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFiveSixPercentageDueJulyFifteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFivePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneFourPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFourPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFiveThreePercentageDueJulyFifteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoThreePercentageDueNovemberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointThreeFourZeroPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeNinePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeNinePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroSevenFivePercentageDueFifteenthJulyTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneZeroPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoSevenPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueOctoberFourteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoEightPercentageDueNovemberEightteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:EuroContractMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:YenContractMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:ShortMember ck0001415311:EuroContractMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:YenContractMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:LongMember 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:ShortMember 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-12-31 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-12-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-12-31 0001415311 us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember 2020-12-31 0001415311 us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesShortEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:USTreasuryAndGovernmentShorttermDebtSecuritiesMember us-gaap:FairValueInputsLevel1Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-12-31 0001415311 us-gaap:FairValueInputsLevel1Member us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember us-gaap:FairValueInputsLevel2Member 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember ck0001415311:VolatilityIndexFutureMember ck0001415311:ReceivablesOnOpenFuturesContractsAndUnrealizedAppreciationOnSwapAgreementsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:VolatilityIndexFutureMember ck0001415311:ReceivablesOnOpenFuturesContractsAndUnrealizedAppreciationOnSwapAgreementsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:CommodityContractMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:CommodityContractMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember us-gaap:NondesignatedMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraGoldMember us-gaap:CommodityContractMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraSilverMember us-gaap:CommodityContractMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember us-gaap:CommodityContractMember ck0001415311:ReceivablesOnOpenFuturesContractsUnrealizedAppreciationOnSwapAndOrForwardContractsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember us-gaap:NondesignatedMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedAppreciationOnForeignCurrencyForwardContractsMember 2020-12-31 0001415311 us-gaap:NondesignatedMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember us-gaap:NondesignatedMember 2020-12-31 0001415311 us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:NondesignatedMember 2020-12-31 0001415311 us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraYenMember us-gaap:NondesignatedMember 2020-12-31 0001415311 us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesUltraShortAustralianDollarMember us-gaap:NondesignatedMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember us-gaap:NondesignatedMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortGoldMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 us-gaap:ForeignExchangeContractMember ck0001415311:UnrealizedDepreciationOnForeignCurrencyForwardContractsMember ck0001415311:ProsharesShortEuroMember us-gaap:NondesignatedMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsUnrealizedDepreciationOnSwapAndOrForwardAgreementsMember us-gaap:CommodityContractMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:PayableOnOpenFuturesContractsAndUnrealizedDepreciationOnSwapAgreementsMember ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:MorganStanleyMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:SocieteGeneraleSaMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:CitibankNaMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember ck0001415311:CitibankNaMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:ProsharesUltraSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:GoldmanSachsAndCoMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:CitibankNaMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UbsAgMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:CitibankNaMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:GoldmanSachsMember 2020-12-31 0001415311 ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 us-gaap:SwapMember 2020-12-31 0001415311 us-gaap:ForeignExchangeForwardMember 2020-12-31 0001415311 us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:FutureMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:SwapMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:ForwardContractsMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:FutureMember 2020-12-31 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesShortEuroMember us-gaap:FutureMember 2020-12-31 0001415311 ck0001415311:ProsharesShortEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraSilverMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraProThreexCrudeOilEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraProThreexShortCrudeOilEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraYenMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortYenMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:FutureMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraYenMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-01-01 2020-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortSilverMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-01-01 2020-06-30 0001415311 us-gaap:FutureMember 2020-01-01 2020-06-30 0001415311 us-gaap:SwapMember 2020-01-01 2020-06-30 0001415311 us-gaap:ForeignExchangeForwardMember 2020-01-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-01-01 2020-06-30 0001415311 us-gaap:OptionOnSecuritiesMember 2020-01-01 2020-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 srt:MinimumMember ck0001415311:MatchingVIXFundsMember 2021-01-01 2021-06-30 0001415311 ck0001415311:MatchingVIXFundsMember 2021-01-01 2021-06-30 0001415311 ck0001415311:GearedvixFundsMember 2021-01-01 2021-06-30 0001415311 ck0001415311:LeveragedFundMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember us-gaap:PrivatePlacementMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraShortYenMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:PrivatePlacementMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UltraShortFundMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortYenMember 2021-01-01 2021-06-30 0001415311 us-gaap:NondesignatedMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:GoldmanSachsMember us-gaap:LongMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:ShortMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:GoldmanSachsMember us-gaap:ShortMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:LongMember 2021-01-01 2021-06-30 0001415311 us-gaap:ShortMember ck0001415311:EuroContractMember ck0001415311:UbsAgMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:ShortMember ck0001415311:EuroContractMember ck0001415311:GoldmanSachsMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:EuroContractMember ck0001415311:UbsAgMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:YenContractMember ck0001415311:UbsAgMember us-gaap:ShortMember 2021-01-01 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:EuroContractMember ck0001415311:GoldmanSachsMember ck0001415311:ProsharesUltraShortEuroMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:YenContractMember ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:GoldmanSachsMember 2021-01-01 2021-06-30 0001415311 us-gaap:LongMember ck0001415311:YenContractMember ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember ck0001415311:UbsAgMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:ShortMember ck0001415311:UbsAgMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:LongMember ck0001415311:UbsAgMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraEuroMember ck0001415311:EuroContractMember us-gaap:LongMember ck0001415311:GoldmanSachsMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UbsAgMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 ck0001415311:SocieteGeneraleSaMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:GoldmanSachsMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:CitibankNaMember ck0001415311:WTICrudeOilSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:GoldmanSachsMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:CitibankNaMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:GoldmanSachsMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:CitibankNaMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:UbsAgMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 ck0001415311:GoldmanSachsMember ck0001415311:InternationalBasedOnIpathSeriesBSAndP500VixShorttermFuturesEtnInavIndexMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember ck0001415311:UbsAgMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UbsAgMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:MorganStanleyAndCoInternationalPlcMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:GoldmanSachsMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember ck0001415311:CitibankNaMember ck0001415311:SilverSubindexMember ck0001415311:BloombergMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UbsAgMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:GoldmanSachsMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember ck0001415311:CitibankNaMember ck0001415311:BloombergMember ck0001415311:GoldSubindexMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:FutureMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:FutureMember 2021-01-01 2021-06-30 0001415311 us-gaap:SwapMember 2021-01-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:MayTwentyFiveTwoThousandAndTwentyOneReverseShareSplitMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:MayTwentyFiveTwoThousandAndTwentyOneReverseShareSplitMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember ck0001415311:AprilTwentyTwoThousandAndTwentyReverseShareSplitMember 2021-01-01 2021-06-30 0001415311 ck0001415311:AprilTwentyTwoThousandAndTwentyReverseShareSplitMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:MayTwentyFiveTwoThousandAndTwentyOneReverseShareSplitMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:MayTwentyFiveTwoThousandAndTwentyOneReverseShareSplitMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoNinePercentageDueNovemberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFiveSixPercentageDueJulyFifteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFivePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneFourPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFourPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraSilverMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFiveThreePercentageDueJulyFifteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointThreeFourZeroPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeNinePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortEuroMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeNinePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourTwoPercentageDueNovemberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroSevenFivePercentageDueFifteenthJulyTwoThousandAndTwentyOneMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneZeroPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroSixOnePercentageDueJulyFifteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoFivePercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneFourPercentageDueOctoberFourteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoSevenPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeThreePercentageDueNovemberElevenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourSixPercentageDueDecemberTwelveTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraEuroMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoSevenPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneThreePercentageDueOctoberFourteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraGoldMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroZeroSixPercentageDueOctoberTwentyOneTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoEightPercentageDueNovemberEightteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraGoldMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroOneSevenPercentageDueAugustNineteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroThreeFourPercentageDueSeptemberSixteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroFourThreePercentageDueNovermberEighteenTwoThousandAndTwentyOneMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-01-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:UnitedStatesTreasuryBillsZeroPointZeroTwoThreePercentageDueNovemberEighteenTwoThousandAndTwentyOneMember ck0001415311:ProsharesUltraYenMember 2021-01-01 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:VolatilityIndexFutureMember us-gaap:NondesignatedMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraGoldMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraSilverMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortGoldMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortSilverMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesShortEuroMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraEuroMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraYenMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortEuroMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortYenMember 2021-04-01 2021-06-30 0001415311 us-gaap:NondesignatedMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:FutureMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2021-04-01 2021-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraYenMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-04-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortEuroMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 us-gaap:FutureMember 2021-04-01 2021-06-30 0001415311 us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 us-gaap:ForeignExchangeForwardMember 2021-04-01 2021-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2021-04-01 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraShortYenMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraYenMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember ck0001415311:VolatilityIndexFutureMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember ck0001415311:VolatilityIndexFutureMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember ck0001415311:VolatilityIndexFutureMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember ck0001415311:VolatilityIndexFutureMember ck0001415311:NetRealizedGainLossOnFuturesContractsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraSilverMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:CommodityContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsSwapAndOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsSwapAndOrForwardAgreementsMember ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesShortEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:NondesignatedMember us-gaap:ForeignExchangeContractMember ck0001415311:NetRealizedGainLossOnFuturesContractsOrForwardAgreementsChangesInUnrealizedAppreciationDepreciationOnFuturesContractsOrForwardAgreementsMember ck0001415311:ProsharesUltraEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:FutureMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:SwapMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:ForeignExchangeForwardMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:FutureMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraGoldMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:FutureMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:SwapMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:FutureMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:SwapMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember us-gaap:ForeignExchangeForwardMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-04-01 2020-06-30 0001415311 us-gaap:ForeignExchangeForwardMember ck0001415311:ProsharesUltraShortEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortEuroMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortGoldMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 us-gaap:SwapMember ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesUltraShortSilverMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember us-gaap:ForeignExchangeForwardMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-04-01 2020-06-30 0001415311 us-gaap:FutureMember 2020-04-01 2020-06-30 0001415311 us-gaap:SwapMember 2020-04-01 2020-06-30 0001415311 us-gaap:ForeignExchangeForwardMember 2020-04-01 2020-06-30 0001415311 us-gaap:USGovernmentAgenciesShorttermDebtSecuritiesMember 2020-04-01 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraYenMember 2019-12-31 0001415311 ck0001415311:ProsharesShortEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2019-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2019-12-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesShortEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraYenMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2019-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-06-30 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraYenMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesShortEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-12-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-12-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraYenMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesShortEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-06-30 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-06-30 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraYenMember 2021-03-31 0001415311 ck0001415311:ProsharesShortEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-03-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesShortEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraYenMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2021-03-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2021-03-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraYenMember 2020-03-31 0001415311 ck0001415311:ProsharesShortEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-03-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesShortEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesShortVixShortTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraBloombergCrudeOilMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraBloombergNaturalGasMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraGoldMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraSilverMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraVixShortTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraYenMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortAustralianDollarMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergCrudeOilMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortBloombergNaturalGasMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortEuroMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortGoldMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortSilverMember 2020-03-31 0001415311 ck0001415311:ProsharesUltraShortYenMember 2020-03-31 0001415311 ck0001415311:ProsharesVixMidTermFuturesEtfMember 2020-03-31 0001415311 ck0001415311:ProsharesVixShortTermFuturesEtfMember 2020-03-31 iso4217:USD xbrli:shares xbrli:pure utr:Month utr:Day iso4217:EUR iso4217:JPY ck0001415311:Trust iso4217:USD xbrli:shares iso4217:USD ck0001415311:EquityUnit ck0001415311:Contract
Table of Contents
 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
FORM
10-Q
 
 
 
Quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the quarterly period ended June 30, 2021.
or
 
Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 for the transition period from
                    
to
                    
.
Commission file number:
001-34200
 
 
PROSHARES TRUST II
(Exact name of registrant as specified in its charter)
 
 
 
Delaware
 
87-6284802
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
c/o ProShare Capital Management LLC
7501 Wisconsin Avenue, Suite 1000
Bethesda, Maryland 20814
(Address of principal executive offices) (Zip Code)
(240)
497-6400
(Registrant’s telephone number, including area code)
 
 
Securities registered pursuant to Section 12(b) of the Act:
 
Title of each class
  
Trading Symbol(s)
  
Name of each exchange
on which registered
ProShares Short Euro
  
EUFX
  
NYSE Arca
ProShares Short VIX Short-Term Futures ETF
  
SVXY
  
Cboe BZX Exchange
ProShares Ultra Bloomberg Crude Oil
  
UCO
  
NYSE Arca
ProShares Ultra Bloomberg Natural Gas
  
BOIL
  
NYSE Arca
ProShares Ultra Euro
  
ULE
  
NYSE Arca
ProShares Ultra Gold
  
UGL
  
NYSE Arca
ProShares Ultra Silver
  
AGQ
  
NYSE Arca
ProShares Ultra VIX Short-Term Futures ETF
  
UVXY
  
Cboe BZX Exchange
ProShares Ultra Yen
  
YCL
  
NYSE Arca
ProShares UltraShort Australian Dollar
  
CROC
  
NYSE Arca
ProShares UltraShort Bloomberg Crude Oil
  
SCO
  
NYSE Arca
ProShares UltraShort Bloomberg Natural Gas
  
KOLD
  
NYSE Arca
ProShares UltraShort Euro
  
EUO
  
NYSE Arca
ProShares UltraShort Gold
  
GLL
  
NYSE Arca
ProShares UltraShort Silver
  
ZSL
  
NYSE Arca
ProShares UltraShort Yen
  
YCS
  
NYSE Arca
ProShares VIX
Mid-Term
Futures ETF
  
VIXM
  
Cboe BZX Exchange
ProShares VIX Short-Term Futures ETF
  
VIXY
  
Cboe BZX Exchange
Securities registered pursuant to Section 12(g) of the Act: None
 
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ☒  Yes    ☐  No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation
S-T
(§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    ☒  Yes    ☐  No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated
filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer”, “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule
12b-2
of the Exchange Act.
 
Large Accelerated Filer          Accelerated Filer  
         
Non-Accelerated
Filer
         Smaller Reporting Company  
         
Emerging Growth Company               
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule
12b-2
of the Exchange Act.).    ☐  Yes    ☒  No
Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.    ☒  Yes    ☐  No
As of
July 27,
2021, the registrant had 102,673,980 shares of common stock, $0 par value per share, outstanding.
 
 
 

Table of Contents
PROSHARES TRUST II
Table of Contents
 
 
  
Page
 
Part I. FINANCIAL INFORMATION
  
     
  
 
3
 
  
 
139
 
  
 
194
 
  
 
209
 
   
Part II. OTHER INFORMATION
  
     
  
 
211
 
  
 
211
 
  
 
213
 
  
 
215
 
  
 
215
 
  
 
215
 
  
 
216
 
 
2

Table of Contents
Part I.    FINANCIAL INFORMATION
Item 1.    Financial Statements.
Index
 
Documents
  
Page
 
Statements of Financial Condition, Schedule of Investments, Statements of Operations, Statements of Changes in Shareholders’ Equity, and Statements of Cash Flows:
  
     
  
 
4
 
  
 
9
 
  
 
14
 
  
 
19
 
  
 
24
 
  
 
29
 
  
 
34
 
  
 
39
 
  
 
44
 
  
 
49
 
  
 
54
 
  
 
59
 
  
 
64
 
  
 
69
 
  
 
74
 
  
 
79
 
  
 
84
 
  
 
89
 
  
 
94
 
  
 
98
 
 
3

Table of Contents 
PROSHARES SHORT EURO
STATEMENTS OF FINANCIAL CONDITION
 
    
June 30, 2021
(unaudited)
    
December 31,
2020
 
Assets
                 
Cash
   $ 2,117,049      $ 4,105,781  
Segregated cash balances with brokers for futures contracts
     36,300        68,310  
Receivable on open futures contracts
     7,340        21,094  
Interest receivable
     86        175  
    
 
 
    
 
 
 
Total assets
     2,160,775        4,195,360  
    
 
 
    
 
 
 
Liabilities and shareholders’ equity
                 
Liabilities
                 
Payable to Sponsor
     1,659        3,391  
Non-recurring
fees and expenses payable
     14        14  
    
 
 
    
 
 
 
Total liabilities
     1,673        3,405  
    
 
 
    
 
 
 
Commitments and Contingencies (Note 2)
                 
Shareholders’ equity
                 
Shareholders’ equity
     2,159,102        4,191,955  
    
 
 
    
 
 
 
Total liabilities and shareholders’ equity
   $ 2,160,775      $ 4,195,360  
    
 
 
    
 
 
 
Shares outstanding
     50,000        100,000  
    
 
 
    
 
 
 
Net asset value per share
   $ 43.18      $ 41.92  
    
 
 
    
 
 
 
Market value per share (Note 2)
   $ 43.14      $ 41.35  
    
 
 
    
 
 
 
See accompanying notes to financial statements.
 
4

Table of Contents
PROSHARES SHORT EURO
SCHEDULE OF INVESTMENTS
JUNE 30, 2021
(unaudited)
 
Futures Contracts Sold
        
    
Number of
Contracts
    
Notional Amount
at Value
    
Unrealized
Appreciation
(Depreciation)/Value
 
Euro Fx Currency Futures - CME, expires September 2021
     15      $ 2,224,688      $ 51,551  
See accompanying notes to financial statements.
 
5

Table of Contents
PROSHARES SHORT EURO
STATEMENTS OF OPERATIONS
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Investment Income
                                
Interest
   $ 310     $ 54     $ 906     $ 7,649  
    
 
 
   
 
 
   
 
 
   
 
 
 
Expenses
                                
Management fee
     5,032       5,516       14,085       11,019  
Brokerage commissions
     79       90       260       190  
    
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses
     5,111       5,606       14,345       11,209  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (4,801     (5,552     (13,439     (3,560
    
 
 
   
 
 
   
 
 
   
 
 
 
Realized and unrealized gain (loss) on investment activity
                                
Net realized gain (loss) on
                                
Futures contracts
     (38,172     (20,020     31,221       (38,658
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized gain (loss)
     (38,172     (20,020     31,221       (38,658
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation) on
                                
Futures contracts
     17,623       (20,804     96,177       46,520  
Short-term U.S. government and agency obligations
     (88     —         —         (30
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation)
     17,535       (20,804     96,177       46,490  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized and unrealized gain (loss)
     (20,637     (40,824     127,398       7,832  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
   $ (25,438   $ (46,376   $ 113,959     $ 4,272  
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
6

Table of Contents
PROSHARES SHORT EURO
STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Shareholders’ equity, beginning of period
   $ 2,184,540     $ 2,332,843     $ 4,191,955     $ 2,282,195  
    
 
 
   
 
 
   
 
 
   
 
 
 
Redemption of –, –, 50,000 and – shares, respectively
     —         —         (2,146,812     —    
    
 
 
   
 
 
   
 
 
   
 
 
 
Net addition (redemption) of –, –, (50,000) and – shares, respectively
     —         —         (2,146,812     —    
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (4,801     (5,552     (13,439     (3,560
Net realized gain (loss)
     (38,172     (20,020     31,221       (38,658
Change in net unrealized appreciation (depreciation)
     17,535       (20,804     96,177       46,490  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
     (25,438     (46,376     113,959       4,272  
    
 
 
   
 
 
   
 
 
   
 
 
 
Shareholders’ equity, end of period
   $ 2,159,102     $ 2,286,467     $ 2,159,102     $ 2,286,467  
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
7

Table of Contents
PROSHARES SHORT EURO
STATEMENTS OF CASH FLOWS
(unaudited)
 
    
Six Months Ended
June 30,
 
  
2021
   
2020
 
Cash flow from operating activities
                
Net income (loss)
   $ 113,959     $ 4,272  
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
                
Purchases of short-term U.S. government and agency obligations
     (1,999,562     —    
Proceeds from sales or maturities of short-term U.S. government and agency obligations
     2,000,000       747,000  
Net amortization and accretion on short-term U.S. government and agency obligations
     (438     (1,225
Change in unrealized appreciation (depreciation) on investments
     —         30  
Decrease (Increase) in receivable on futures contracts
     13,754       (300
Decrease (Increase) in interest receivable
     89       2,158  
Increase (Decrease) in payable to Sponsor
     (1,732     (82
Increase (Decrease) in payable on futures contracts
     —         (5,100
    
 
 
   
 
 
 
Net cash provided by (used in) operating activities
     126,070       746,753  
    
 
 
   
 
 
 
Cash flow from financing activities
                
Payment on shares redeemed
     (2,146,812     —    
    
 
 
   
 
 
 
Net cash provided by (used in) financing activities
     (2,146,812     —    
    
 
 
   
 
 
 
Net increase (decrease) in cash
     (2,020,742     746,753  
Cash, beginning of period
     4,174,091       1,540,916  
    
 
 
   
 
 
 
Cash, end of period
   $ 2,153,349     $ 2,287,669  
    
 
 
   
 
 
 
See accompanying notes to financial statements.
 
8

Table of Contents
PROSHARES SHORT VIX SHORT-TERM FUTURES ETF
STATEMENTS OF FINANCIAL CONDITION
 
    
June 30, 2021
(unaudited)
    
December 31,
2020
 
Assets
                 
Short-term U.S. government and agency obligations (Note 3) (cost $204,988,345 and $69,998,727, respectively)
   $ 204,974,762      $ 69,999,639  
Cash
     83,694,986        132,392,153  
Segregated cash balances with brokers for futures contracts
     220,872,623        134,187,067  
Receivable on open futures contracts
     85,243,605        74,226,825  
Interest receivable
     3,217        4,384  
    
 
 
    
 
 
 
Total assets
     594,789,193        410,810,068  
    
 
 
    
 
 
 
Liabilities and shareholders’ equity
                 
Liabilities
                 
Payable on open futures contracts
     5,586,151        996,159  
Brokerage commissions and futures account fees payable
     134,560        114,522  
Payable to Sponsor
     451,183        326,566  
Non-recurring
fees and expenses payable
     1,353        1,353  
    
 
 
    
 
 
 
Total liabilities
     6,173,247        1,438,600  
    
 
 
    
 
 
 
Commitments and Contingencies (Note 2)
                 
Shareholders’ equity
                 
Shareholders’ equity
     588,615,946        409,371,468  
    
 
 
    
 
 
 
Total liabilities and shareholders’ equity
   $ 594,789,193      $ 410,810,068  
    
 
 
    
 
 
 
Shares outstanding
     10,584,307        9,884,307  
    
 
 
    
 
 
 
Net asset value per share
   $ 55.61      $ 41.42  
    
 
 
    
 
 
 
Market value per share (Note 2)
   $ 55.55      $ 41.44  
    
 
 
    
 
 
 
See accompanying notes to financial statements.
 
9

Table of Contents
PROSHARES SHORT VIX SHORT-TERM FUTURES ETF
SCHEDULE OF INVESTMENTS
JUNE 30, 2021
(unaudited)
 
    
Principal
Amount
    
Value
 
Short-term U.S. government and agency obligations
     
(35% of shareholders’ equity)
     
U.S. Treasury Bills
^^
:
     
0.017% due 08/19/21
   $ 50,000,000      $ 49,996,940  
0.013% due 09/16/21
     40,000,000        39,996,152  
0.017% due 10/14/21
     25,000,000        24,996,720  
0.006% due 10/21/21
     20,000,000        19,997,200  
0.029% due 11/18/21
     70,000,000        69,987,750  
     
 
 
 
Total short-term U.S. government and agency obligations
(cost $204,988,345)
      $ 204,974,762  
     
 
 
 
Futures Contracts Sold
 
    
Number of
Contracts
    
Notional Amount
at Value
    
Unrealized
Appreciation
(Depreciation)/Value
 
VIX Futures - Cboe, expires July 2021
     8,517      $ 152,482,406      $ 32,933,870  
VIX Futures - Cboe, expires August 2021
     7,201        142,210,389        4,246,396  
        
 
 
 
         $ 37,180,266  
        
 
 
 
 
^^
Rates shown represent discount rate at the time of purchase.
See accompanying notes to financial statements.
 
10

Table of Contents
PROSHARES SHORT VIX SHORT-TERM FUTURES ETF
STATEMENTS OF OPERATIONS
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Investment Income
                                
Interest
   $ 33,687     $ 106,023     $ 67,577     $ 855,884  
    
 
 
   
 
 
   
 
 
   
 
 
 
Expenses
                                
Management fee
     1,317,153       1,589,036       2,359,722       2,475,233  
Brokerage commissions
     253,949       228,176       429,859       417,708  
Future
s account
fees
     328,342       431,791       586,119       461,519  
    
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses
     1,899,444       2,249,003       3,375,700       3,354,460  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (1,865,757     (2,142,980     (3,308,123     (2,498,576
    
 
 
   
 
 
   
 
 
   
 
 
 
Realized and unrealized gain (loss) on investment activity
                                
Net realized gain (loss) on
                                
Futures contracts
     109,337,017       54,615,763       133,546,434       (189,684,841
Short-term U.S. government and agency obligations
     —         (758     —         (758
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized gain (loss)
     109,337,017       54,615,005       133,546,434       (189,685,599
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation) on
                                
Futures contracts
     (13,290,409     (22,216,796     28,831,483       (1,242,994
Short-term U.S. government and agency obligations
     (17,721     (84,533     (14,495     (2,677
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation)
     (13,308,130     (22,301,329     28,816,988       (1,245,671
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized and unrealized gain (loss)
     96,028,887       32,313,676       162,363,422       (190,931,270
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
   $ 94,163,130     $ 30,170,696     $ 159,055,299     $ (193,429,846
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
11

Table of Contents
PROSHARES SHORT VIX SHORT-TERM FUTURES ETF
STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Shareholders’ equity, beginning of period
   $ 527,130,851     $ 809,257,658     $ 409,371,468     $ 284,437,179  
    
 
 
   
 
 
   
 
 
   
 
 
 
Addition of 450,000, 1,000,000, 2,850,000 and 25,850,000 shares, respectively
     21,503,474       30,843,161       119,612,942       914,411,669  
Redemption of 1,050,000, 10,850,000, 2,150,000 and 13,950,000 shares, respectively
     (54,181,509     (360,459,662     (99,423,763     (495,607,149
    
 
 
   
 
 
   
 
 
   
 
 
 
Net addition (redemption) of (600,000), (9,850,000), 700,000 and 11,900,000 shares, respectively
     (32,678,035     (329,616,501     20,189,179       418,804,520  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (1,865,757     (2,142,980     (3,308,123     (2,498,576
Net realized gain (loss)
     109,337,017       54,615,005       133,546,434       (189,685,599
Change in net unrealized appreciation (depreciation)
     (13,308,130     (22,301,329     28,816,988       (1,245,671
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
     94,163,130       30,170,696       159,055,299       (193,429,846
    
 
 
   
 
 
   
 
 
   
 
 
 
Shareholders’ equity, end of period
   $ 588,615,946     $ 509,811,853     $ 588,615,946     $ 509,811,853  
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
12

Table of Contents
PROSHARES SHORT VIX SHORT-TERM FUTURES ETF
STATEMENTS OF CASH FLOWS
(unaudited)
 
    
Six Months Ended June 30,
 
  
2021
   
2020
 
Cash flow from operating activities
                
Net income (loss)
   $ 159,055,299     $ (193,429,846
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
                
Purchases of short-term U.S. government and agency obligations
     (371,956,927     (339,626,542
Proceeds from sales or maturities of short-term U.S. government and agency obligations
     237,000,000       271,998,224  
Net amortization and accretion on short-term U.S. government and agency obligations
     (32,691     (420,582
Net realized gain (loss) on investments
     —         758  
Change in unrealized appreciation (depreciation) on investments
     14,495       2,677  
Decrease (Increase) in receivable on futures contracts
     (11,016,780     (101,415,612
Decrease (Increase) in interest receivable
     1,167       112,177  
Increase (Decrease) in payable to Sponsor
     124,617       203,612  
Increase (Decrease) in brokerage commissions and
futures account
 
fees payable
     20,038       153,542  
Increase (Decrease) in payable on futures contracts
     4,589,992       17,172,752  
    
 
 
   
 
 
 
Net cash provided by (used in) operating activities
     17,799,210       (345,248,840
    
 
 
   
 
 
 
Cash flow from financing activities
                
Proceeds from addition of shares
     119,612,942       914,411,669  
Payment on shares redeemed
     (99,423,763     (495,607,149
    
 
 
   
 
 
 
Net cash provided by (used in) financing activities
     20,189,179       418,804,520  
    
 
 
   
 
 
 
Net increase (decrease) in cash
     37,988,389       73,555,680  
Cash, beginning of period
     266,579,220       167,544,087  
    
 
 
   
 
 
 
Cash, end of period
   $ 304,567,609     $ 241,099,767  
    
 
 
   
 
 
 
See accompanying notes to financial statements.
 
13

Table of Contents
PROSHARES ULTRA BLOOMBERG CRUDE OIL
STATEMENTS OF FINANCIAL CONDITION
 
    
June 30, 2021
(unaudited)
    
December 31,
2020
 
Assets
                 
Short-term U.S. government and agency obligations (Note 3) (cost $932,921,470 and $219,996,153, respectively)
   $ 932,884,626      $ 219,998,394  
Cash
     287,085,393        491,732,847  
Segregated cash balances with brokers for futures contracts
     189,096,050        175,526,749  
Unrealized appreciation on swap agreements
     39,747,504        18,242,195  
Receivable on open futures contracts
     5,661,793        1,611,608  
Interest receivable
     59,956        21,388  
    
 
 
    
 
 
 
Total assets
     1,454,535,322        907,133,181  
    
 
 
    
 
 
 
Liabilities and shareholders’ equity
                 
Liabilities
                 
Payable for capital shares redeemed
     —          3,627,934  
Brokerage commissions and
futures account
fees payable
     22,929        —    
Payable to Sponsor
     975,949        728,955  
Securities purchased payable
     149,968,500        —    
Non-recurring
fees and expenses payable
     37,042        37,042  
    
 
 
    
 
 
 
Total liabilities
     151,004,420        4,393,931  
    
 
 
    
 
 
 
Commitments and Contingencies (Note 2)
                 
Shareholders’ equity
                 
Shareholders’ equity
     1,303,530,902        902,739,250  
    
 
 
    
 
 
 
Total liabilities and shareholders’ equity
   $ 1,454,535,322      $ 907,133,181  
    
 
 
    
 
 
 
Shares outstanding
     16,660,774        24,810,774  
    
 
 
    
 
 
 
Net asset value per share
   $ 78.24      $ 36.38  
    
 
 
    
 
 
 
Market value per share (Note 2)
   $ 78.23      $ 36.27  
    
 
 
    
 
 
 
See accompanying notes to financial statements.
 
14

Table of Contents
PROSHARES ULTRA BLOOMBERG CRUDE OIL
SCHEDULE OF INVESTMENTS
JUNE 30, 2021
(unaudited)
 
    
Principal
Amount
    
Value
 
Short-term U.S. government and agency obligations
     
(72% of shareholders’ equity)
     
U.S. Treasury Bills
^^
:
     
0.061% due 07/15/21
   $ 175,000,000      $ 174,996,938  
0.017% due 08/19/21
     100,000,000        99,993,880  
0.025% due 09/16/21
     93,000,000        92,991,053  
0.014% due 10/14/21
     125,000,000        124,983,600  
0.027% due 10/21/21
     140,000,000        139,980,400  
0.033% due 11/18/21
     150,000,000        149,973,750  
0.046% due 12/16/21
     150,000,000        149,965,005  
     
 
 
 
Total short-term U.S. government and agency obligations
(cost $932,921,470)
      $ 932,884,626  
     
 
 
 
Futures Contracts Purchased
 
    
Number of
Contracts
    
Notional Amount
at Value
    
Unrealized
Appreciation
(Depreciation)/Value
 
WTI Crude Oil - NYMEX, expires September 2021
     8,113      $ 590,383,010      $ 35,502,348  
WTI Crude Oil - NYMEX, expires December 2021
     8,603        603,328,390        184,574,670  
WTI Crude Oil - NYMEX, expires June 2022
     8,948        595,399,920        95,975,592  
        
 
 
 
         $ 316,052,610  
        
 
 
 
Total Return Swap Agreements
^
 
    
Rate Paid

(Received)
*
   
Termination
Date
    
Notional Amount
at Value
**
    
Unrealized
Appreciation
(Depreciation)/Value
 
Swap agreement with Citibank, N.A. based on Bloomberg Commodity Balanced WTI Crude Oil Index
     0.35     07/06/21      $ 54,331,869      $ 2,643,422  
Swap agreement with Goldman Sachs International based on Bloomberg Commodity Balanced WTI Crude Oil Index
     0.35       07/06/21        192,754,488        9,378,129  
Swap agreement with Morgan Stanley & Co. International PLC based on Bloomberg Commodity Balanced WTI Crude Oil Index
     0.35       07/06/21        249,583,741        12,143,056  
Swap agreement with Societe Generale based on Bloomberg Commodity Balanced WTI Crude Oil Index
     0.25       07/06/21        128,583,706        6,263,720  
Swap agreement with UBS AG based on Bloomberg Commodity Balanced WTI Crude Oil Index
     0.30       07/06/21        191,424,891        9,319,177  
          
 
 
 
         
Total Unrealized
Appreciation

 
   $ 39,747,504  
          
 
 
 
 
All or partial amount pledged as collateral for swap agreements.
^
The positions and counterparties herein are as of June 30, 2021. The Fund continually evaluates different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.
^^
Rates shown represent discount rate at the time of purchase.
*
Reflects the floating financing rate, as of June 30, 2021, on the notional amount of the swap agreement paid to the counterparty or received from the counterparty, excluding any commissions. Total Return Swap Agreements payment is due at termination/maturity.
**
For swap agreements, a positive amount represents “long” exposure to the benchmark index. A negative amount represents “short” exposure to the benchmark index.
See accompanying notes to financial statements.
 
15

Table of Contents
PROSHARES ULTRA BLOOMBERG CRUDE OIL
STATEMENTS OF OPERATIONS
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Investment Income
                                
Interest
   $ 111,333     $ 365,747     $ 279,408     $ 1,767,207  
    
 
 
   
 
 
   
 
 
   
 
 
 
Expenses
                                
Management fee
     2,794,292       2,806,288       5,329,377       3,676,527  
Brokerage commissions
     210,012       1,017,545       503,212       1,143,882  
Futures account
fees
     317,748       536,749       416,685       536,749  
    
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses
     3,322,052       4,360,582       6,249,274       5,357,158  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (3,210,719     (3,994,835     (5,969,866     (3,589,951
    
 
 
   
 
 
   
 
 
   
 
 
 
Realized and unrealized gain (loss) on investment activity
                                
Net realized gain (loss) on
                                
Futures contracts
     255,445,062       (31,090,802     447,121,563       (120,038,012
Swap agreements
     65,060,597       (640,451,755     207,735,324       (1,057,095,811
Short-term U.S. government and agency obligations
     —         121,849       —         159,318  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized gain (loss)
     320,505,659       (671,420,708     654,856,887       (1,176,974,505
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation) on
                                
Futures contracts
     77,503,699       424,261,108       171,488,571       350,547,390  
Swap agreements
     80,496,098       237,286,565       21,505,309       (11,776,267
Short-term U.S. government and agency obligations
     (80,658     (368,827     (39,085     (13,938
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation)
     157,919,139       661,178,846       192,954,795       338,757,185  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized and unrealized gain (loss)
     478,424,798       (10,241,862     847,811,682       (838,217,320
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
   $ 475,214,079     $ (14,236,697   $ 841,841,816     $ (841,807,271
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
16

Table of Contents
PROSHARES ULTRA BLOOMBERG CRUDE OIL
STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Shareholders’ equity, beginning of period
   $ 1,088,579,093     $ 435,593,381     $ 902,739,250     $ 309,844,582  
    
 
 
   
 
 
   
 
 
   
 
 
 
Addition of 1,050,000, 77,482,000, 3,400,000 and 88,162,000 shares, respectively
     60,208,663       1,895,200,511       177,252,853       2,953,530,675  
Redemption of 5,100,000, 35,569,679, 11,550,000 and 36,009,679 shares, respectively
     (320,470,933     (807,895,736     (618,303,017     (912,906,527
    
 
 
   
 
 
   
 
 
   
 
 
 
Net addition (redemption) of (4,050,000), 41,912,321, (8,150,000) and 52,152,321 shares, respectively
     (260,262,270     1,087,304,775       (441,050,164     2,040,624,148  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (3,210,719     (3,994,835     (5,969,866     (3,589,951
Net realized gain (loss)
     320,505,659       (671,420,708     654,856,887       (1,176,974,505
Change in net unrealized appreciation (depreciation)
     157,919,139       661,178,846       192,954,795       338,757,185  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
     475,214,079       (14,236,697     841,841,816       (841,807,271
    
 
 
   
 
 
   
 
 
   
 
 
 
Shareholders’ equity, end of period
   $ 1,303,530,902     $ 1,508,661,459     $ 1,303,530,902     $ 1,508,661,459  
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
17

Table of Contents
PROSHARES ULTRA BLOOMBERG CRUDE OIL
STATEMENTS OF CASH FLOWS
(unaudited)
 
    
Six Months Ended
June 30,
 
  
2021
   
2020
 
Cash flow from operating activities
                
Net income (loss)
   $ 841,841,816     $ (841,807,271
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
                
Purchases of short-term U.S. government and agency obligations
     (1,692,766,532     (409,801,073
Proceeds from sales or maturities of short-term U.S. government and agency obligations
     980,000,000       611,325,152  
Net amortization and accretion on short-term U.S. government and agency obligations
     (158,785     (1,263,236
Net realized gain (loss) on investments
     —         (159,318
Change in unrealized appreciation (depreciation) on investments
     (21,466,224     11,790,205  
Decrease (Increase) in securities sold receivable
     —         (3,718,972
Decrease (Increase) in receivable on futures contracts
     (4,050,185     (108,300,298
Decrease (Increase) in interest receivable
     (38,568     45,517  
Increase (Decrease) in payable to Sponsor
     246,994       990,466  
Increase (Decrease) in brokerage commissions and
 futures account
fees payable
     22,929       —    
Increase (Decrease) in payable on futures contracts
     —         52,061,296  
Increase (Decrease) in securities purchased payable
     149,968,500       —    
    
 
 
   
 
 
 
Net cash provided by (used in) operating activities
     253,599,945       (688,837,532
    
 
 
   
 
 
 
Cash flow from financing activities
                
Proceeds from addition of shares
     177,252,853       2,953,530,675  
Payment on shares redeemed
     (621,930,951     (840,445,530
    
 
 
   
 
 
 
Net cash provided by (used in) financing activities
     (444,678,098     2,113,085,145  
    
 
 
   
 
 
 
Net increase (decrease) in cash
     (191,078,153     1,424,247,613  
Cash, beginning of period
     667,259,596       88,315,563  
    
 
 
   
 
 
 
Cash, end of period
   $ 476,181,443     $ 1,512,563,176  
    
 
 
   
 
 
 
See accompanying notes to financial statements.
 
18

Table of Contents
PROSHARES ULTRA BLOOMBERG NATURAL GAS
STATEMENTS OF FINANCIAL CONDITION
 
    
June 30, 2021
(unaudited)
    
December 31,
2020
 
Assets
                 
Short-term U.S. government and agency obligations (Note 3) (cost $29,997,222 and $29,999,585, respectively)
   $ 29,996,554      $ 29,999,889  
Cash
     31,362,630        92,972,312  
Segregated cash balances with brokers for futures contracts
     9,111,733        44,320,410  
Receivable on open futures contracts
     —          13,775,851  
Interest receivable
     1,563        4,326  
    
 
 
    
 
 
 
Total assets
     70,472,480        181,072,788  
    
 
 
    
 
 
 
Liabilities and shareholders’ equity
                 
Liabilities
                 
Payable for capital shares redeemed
     —          11,132,546  
Payable on open futures contracts
     210,440        —    
Brokerage commissions and
futures account
fees payable
     296        —    
Payable to Sponsor
     48,101        139,455  
Non-recurring
fees and expenses payable
     416        416  
    
 
 
    
 
 
 
Total liabilities
     259,253        11,272,417  
    
 
 
    
 
 
 
Commitments and Contingencies (Note 2)
                 
Shareholders’ equity
                 
Shareholders’ equity
     70,213,227        169,800,371  
    
 
 
    
 
 
 
Total liabilities and shareholders’ equity
   $ 70,472,480      $ 181,072,788  
    
 
 
    
 
 
 
Shares outstanding
     1,987,527        8,087,527  
    
 
 
    
 
 
 
Net asset value per share
   $ 35.33      $ 21.00  
    
 
 
    
 
 
 
Market value per share (Note 2)
   $ 37.17      $ 21.07  
    
 
 
    
 
 
 
See accompanying notes to financial statements.
 
19

Table of Contents
PROSHARES ULTRA BLOOMBERG NATURAL GAS
SCHEDULE OF INVESTMENTS
JUNE 30, 2021
(unaudited)
 
    
Principal
Amount
    
Value
 
Short-term U.S. government and agency obligations
     
(43% of shareholders’ equity)
     
U.S. Treasury Bills
^^
:
     
0.017% due 08/19/21
   $ 2,000,000      $ 1,999,878  
0.034% due 09/16/21
     20,000,000        19,998,076  
0.043% due 11/18/21
     8,000,000        7,998,600  
     
 
 
 
Total short-term U.S. government and agency obligations
(cost $29,997,222)
      $ 29,996,554  
     
 
 
 
Futures Contracts Purchased
 
    
Number of
Contracts
    
Notional Amount
at Value
    
Unrealized
Appreciation
(Depreciation)/Value
 
Natural Gas - NYMEX, expires September 2021
     3,875      $ 140,430,000      $ 17,050,742  
 
^^
Rates shown represent discount rate at the time of purchase.
See accompanying notes to financial statements.
 
20

Table of Contents
PROSHARES ULTRA BLOOMBERG NATURAL GAS
STATEMENTS OF OPERATIONS
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Investment Income
                                
Interest
   $ 11,544     $ 36,474     $ 25,359     $ 175,813  
    
 
 
   
 
 
   
 
 
   
 
 
 
Expenses
                                
Management fee
     152,958       81,904       407,773       179,012  
Brokerage commissions
     63,062       63,224       155,359       107,806  
Futures account
fees
     12,887       12,642       94,735       12,642  
    
 
 
   
 
 
   
 
 
   
 
 
 
Total expenses
     228,907       157,770       657,867       299,460  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (217,363     (121,296     (632,508     (123,647
    
 
 
   
 
 
   
 
 
   
 
 
 
Realized and unrealized gain (loss) on investment activity
                                
Net realized gain (loss) on
                                
Futures contracts
     4,901,288       (16,111,161     46,483,673       (38,930,766
Short-term U.S. government and agency obligations
     —         (77     551       977  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized gain (loss)
     4,901,288       (16,111,238     46,484,224       (38,929,789
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation) on
                                
Futures contracts
     28,350,804       4,884,617       10,550,021       417,794  
Short-term U.S. government and agency obligations
     (2,887     (31,345     (972     (1,559
    
 
 
   
 
 
   
 
 
   
 
 
 
Change in net unrealized appreciation (depreciation)
     28,347,917       4,853,272       10,549,049       416,235  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net realized and unrealized gain (loss)
     33,249,205       (11,257,966     57,033,273       (38,513,554
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
   $ 33,031,842     $ (11,379,262   $ 56,400,765     $ (38,637,201
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
21

Table of Contents
PROSHARES ULTRA BLOOMBERG NATURAL GAS
STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(unaudited)
 
    
Three Months Ended
June 30,
   
Six Months Ended
June 30,
 
  
2021
   
2020
   
2021
   
2020
 
Shareholders’ equity, beginning of period
   $ 74,307,070     $ 26,671,617     $ 169,800,371     $ 45,160,205  
    
 
 
   
 
 
   
 
 
   
 
 
 
Addition of 650,000, 1,260,000, 4,050,000 and 1,485,000 shares, respectively
     13,706,591       38,571,988       90,187,414       54,252,228  
Redemption of 2,150,000, 110,288, 10,150,000 and 235,288 shares, respectively
     (50,832,276     (3,264,560     (246,175,323     (10,175,449
    
 
 
   
 
 
   
 
 
   
 
 
 
Net addition (redemption) of (1,500,000), 1,149,712, (6,100,000) and 1,249,712 shares, respectively
     (37,125,685     35,307,428       (155,987,909     44,076,779  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net investment income (loss)
     (217,363     (121,296     (632,508     (123,647
Net realized gain (loss)
     4,901,288       (16,111,238     46,484,224       (38,929,789
Change in net unrealized appreciation (depreciation)
     28,347,917       4,853,272       10,549,049       416,235  
    
 
 
   
 
 
   
 
 
   
 
 
 
Net income (loss)
     33,031,842       (11,379,262     56,400,765       (38,637,201
    
 
 
   
 
 
   
 
 
   
 
 
 
Shareholders’ equity, end of period
   $ 70,213,227     $ 50,599,783     $ 70,213,227     $ 50,599,783  
    
 
 
   
 
 
   
 
 
   
 
 
 
See accompanying notes to financial statements.
 
22

Table of Contents
PROSHARES ULTRA BLOOMBERG NATURAL GAS
STATEMENTS OF CASH FLOWS
(unaudited)
 
    
Six Months Ended
June 30,
 
  
2021
   
2020
 
Cash flow from operating activities
                
Net income (loss)
   $ 56,400,765     $ (38,637,201
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
                
Purchases of short-term U.S. government and agency obligations
     (118,983,722     (41,900,001
Proceeds from sales or maturities of short-term U.S. government and agency obligations
     118,999,676       53,563,843  
Net amortization and accretion on short-term U.S. government and agency obligations
     (13,040     (131,818
Net realized gain (loss) on investments
     (551     (977
Change in unrealized appreciation (depreciation) on investments
     972       1,559  
Decrease (Increase) in receivable on futures contracts
     13,775,851       (1,646,280
Decrease (Increase) in interest receivable
     2,763       9,728  
Increase (Decrease) in payable to Sponsor
     (91,354     (8,931
Increase (Decrease) in brokerage commissions and
 futures account
fees payable
     296       —    
Increase (Decrease) in payable on futures contracts
     210,440       —    
    
 
 
   
 
 
 
Net cash provided by (used in) operating activities
     70,302,096       (28,750,078
    
 
 
   
 
 
 
Cash flow from financing activities
                
Proceeds from addition of shares
     90,187,414       54,252,228  
Payment on shares redeemed
     (257,307,869     (10,175,449
    
 
 
   
 
 
 
Net cash provided by (used in) financing activities
     (167,120,455     44,076,779  
    
 
 
   
 
 
 
Net increase (decrease) in cash
     (96,818,359     15,326,701  
Cash, beginning of period
     137,292,722       17,619,062  
    
 
 
   
 
 
 
Cash, end of period
   $ 40,474,363     $ 32,945,763  
    
 
 
   
 
 
 
See accompanying notes to financial statements.
 
23

Table of Contents