UBS Investment Bank today announced the quarterly coupon amounts for six ETRACS exchange traded notes (ETRACS ETNs), all traded on the NYSE Arca. Three of the ETNs are linked to Alerian MLP Indexes – ETRACS Alerian MLP Infrastructure ETN (Ticker: MLPI), ETRACS 2x Monthly Leveraged Long Alerian MLP Infrastructure ETN (Ticker: MLPL) and ETRACS Alerian Natural Gas MLP Index ETN (Ticker: MLPG). One ETN is linked to the Wells Fargo MLP Index – ETRACS Wells Fargo MLP ETN (Ticker: MLPW). Two of the ETNs are linked to the Wells Fargo Business Development Company Indexes – ETRACS Wells Fargo Business Development Company ETN (Ticker: BDCS) and ETRACS 2x Leveraged Long Wells Fargo Business Development Company ETN (Ticker: BDCL).

The table below summarizes the coupon amounts for the six notes:

                              NYSE     Coupon         Coupon   Arca Valuation Record Payment Amount Current Yield Ticker   Name   Date   Ex-Date   Date   Date   per Note   (annualized)* MLPI ETRACS Alerian MLP     Infrastructure ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $0.3902   5.06% MLPL ETRACS 2x Monthly Leveraged Long Alerian MLP     Infrastructure ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $1.0043   11.19% MLPG ETRACS Alerian Natural Gas MLP     Index ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $0.3741   5.00% MLPW ETRACS Wells     Fargo MLP ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $0.3278   4.96% BDCS ETRACS Wells Fargo Business Development     Company ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $0.3846   N/A BDCL ETRACS 2x Leveraged Long Wells Fargo Business Development     Company ETN   6/30/2011   7/12/2011   7/14/2011   7/22/2011   $0.7843   N/A

* “Current Yield” equals the current Coupon Amount annualized and divided by the closing price of the Notes on July 1, 2011, and rounded to two decimal places for ease of analysis. The Current Yield is not indicative of future coupon payments, if any, on the Notes.

About ETRACS

For further information about ETRACS ETNs go to http://www.etracs.com.

Exchange Traded Access Securities, ETRACS, are exchange-traded notes, or ETNs, an innovative class of investment products offering access to markets and strategies that may not be readily available to investors, and offer unique diversification opportunities in a number of different sectors. ETNs offer:

  • Access to asset classes with historically low correlations to more traditional asset classes
  • Convenience of an exchange-traded security
  • Transparent exposure to a published index.

ETRACS ETNs are senior unsecured notes issued by UBS AG, are traded on NYSE Arca, and can be bought and sold through a broker or financial advisor. An investment in ETRACS ETNs is subject to a number of risks, including the risk of loss of some or all of the investor’s principal, and is subject to the creditworthiness of UBS. We urge you to read the more detailed explanation of risks described under “Risk Factors” in the prospectus supplement for the ETRACS ETN.

There are 22 ETRACS ETNs:

ETRACS ETN Name

 

Ticker

 

Master Limited Partnerships

Alerian MLP Infrastructure MLPI 2x Monthly Leveraged Long Alerian MLP Infrastructure MLPL 1x Monthly Short Alerian MLP Infrastructure TR* MLPS Alerian Natural Gas MLP MLPG Wells Fargo MLP Index MLPW  

Business Development Companies

Wells Fargo Business Development Company Index BDCS 2x Monthly Leverage Wells Fargo Business Development Company Index BDCL  

Alpha Strategies

Daily Long-Short VIX ETN XVIX Natural Gas Futures Contango ETN GASZ Oil Futures Contango ETN OILZ  

Hybrid

S&P 500 Gold Hedged SPGH  

Commodities

CMCI TR UCI CMCI Agriculture TR UAG CMCI Energy TR UBN CMCI Food TR FUD CMCI Gold TR UBG CMCI Industrial Metals TR UBM CMCI Livestock TR UBC CMCI Long Platinum ER* PTM CMCI Short Platinum ER* PTD CMCI Silver TR USV DJ-UBS Commodity Index TR DJCI   *TR=Total Return and ER=Excess Return

The contents of any website referred to in this communication are not part of, or incorporated by reference in, this communication. UBS has filed a registration statement (including a prospectus, as supplemented by a prospectus supplement for the offering of the ETRACS ETNs) with the Securities and Exchange Commission (the “SEC”) for the offering to which this communication relates. Before you invest, you should read these documents and any other documents that UBS has filed with the SEC for more complete information about UBS and the offering to which this communication relates. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, you can request the prospectus and the applicable prospectus supplement by calling toll-free (+1.877.387.2275).

© UBS 2011. The key symbol, UBS and ETRACS are among the registered and unregistered trademarks of UBS. “ISE Volatility Futures™”, “ISE™®”, and “International Securities Exchange®” are trademarks of International Securities Exchange, LLC (“ISE” and “Licensor”) and have been licensed for use for certain purposes by UBS Securities LLC and its affiliates. UBS AG’s ETRACS Constant-Month Equity Volatility Futures Index ETNs based on the ISE Volatility Futures™ Index are not sponsored, endorsed, sold or promoted by ISE, and ISE makes no representation regarding the advisability of trading in such product(s). “UBS Bloomberg Constant Maturity Commodity Index” and “CMCI” are service marks of UBS and/or Bloomberg. “Dow Jones,” “DJ-UBS Commodity Index” and “DJ-UBSCI” are service marks of Dow Jones & Company Inc. and UBS AG, as the case may be. “Standard & Poor’s®,” “S&P®,” “S&P 500®,” “Standard & Poor’s 500™,” “S&P 500 Gold Hedged,” “S&P 500 VIX Futures Term-Structure Index ER™,”“S&P 500 VIX Short-Term Futures™ Index ER,” and “S&P 500 VIX Mid-Term Futures™ Index ER,” are trademarks of S&P and have been licensed for use by UBS. “VIX” is a registered trademark of the Chicago Board Options Exchange, Incorporated (“CBOE”) and has been licensed for use by S&P. The ETNs are not sponsored, endorsed, sold or promoted by S&P or the CBOE. S&P and CBOE make no representation, condition or warranty, express or implied, to the owners of the ETN or any member of the public regarding the advisability of investing in securities generally or in the ETN or in the ability of either Index to track market performance. Alerian MLP Infrastructure Index, Alerian Natural Gas MLP Index, Alerian MLP Infrastructure Total Return Index, AMZI, AMZIX and ANGI are trademarks of GKD Index Partners, LLC d/b/a Alerian and their use is granted under a license from GKD Index Partners. Wells Fargo Securities, Wells Fargo Securities, LLC, Wells Fargo, and Wells Fargo® Master Limited Partnership Index are trademarks of Wells Fargo & Company and have been licensed for use by UBS AG. ETRACS Wells Fargo MLP Index is not issued, guaranteed, sponsored, endorsed, sold or promoted by Wells Fargo & Company, Wells Fargo Securities, LLC or their subsidiaries and affiliates (collectively, “Wells Fargo”). Wells Fargo makes no representation or warranty, express or implied, to investors in the ETRACS ETNs or any member of the public regarding the advisability of investing in securities generally or in this ETRACS Wells Fargo MLP Index particularly or the ability of any data supplied by Wells Fargo or any Index to track financial instruments comprising the Index or any trading market. Wells Fargo & Company does not guarantee that the Index referenced by the ETRACS ETNs has been accurately calculated and shall not have any liability for any error in the calculation. Wells Fargo’s only relationship to UBS AG is the licensing of certain intellectual property rights relating to the Index as well as trademarks and trade names of Wells Fargo and of the data supplied by Wells Fargo that is determined, composed, compiled and calculated by Wells Fargo or a third party index calculator, without regard to this ETRACS Wells Fargo MLP Index. Wells Fargo has no obligation to take into consideration the ETRACS Wells Fargo MLP Index or investors in the ETRACS ETNs when determining, composing, compiling or calculating the data. Wells Fargo has no obligation or liability in connection with the listing, registration, distribution, administration, marketing, trading or redemption or settlement by the issuer or otherwise of this ETRACS Wells Fargo MLP Index. Wells Fargo does not guarantee the accuracy and/or the completeness of the index or of any data supplied by it or any data included therein. Wells Fargo makes no warranty, express or implied, as to results to be obtained by UBS AG and the ETRACS Wells Fargo MLP Index, or any other person or entity from the use of index or of the data supplied by Wells Fargo or any data included therein. Wells Fargo makes no express or implied warranties, and expressly disclaims all warranties of merchantability or fitness for a particular purpose or use with respect to the index and the data supplied by Wells Fargo or any data included therein. Without limiting any of the foregoing, in no event shall Wells Fargo have any liability for any special, punitive, indirect, or consequential damages (including lost profits), even if notified of the possibility of such damages. “ISE Oil Futures Spread™”, “ISE Natural Gas Futures Spread™”, “ISE™®”, and “International Securities Exchange®” are trademarks of International Securities Exchange, LLC ("ISE" or "Licensor") and have been licensed for use for certain purposes by UBS Securities LLC and its affiliates. UBS AG's ETRACS Natural Gas Futures Contango ETN and ETRACS Oil Futures Contango ETN based on the ISE Natural Gas Futures Spread™ Index and ISE Oil Futures Spread™ Index are not sponsored, endorsed, sold or promoted by ISE, and ISE makes no representation regarding the advisability of trading in such product(s). Other marks may be trademarks of their respective owners. All rights reserved. UBS assumes sole responsibility for this marketing material, which has not been reviewed by Bloomberg.

Note to Editors

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