NMX Nymex Holdings

- NYMEX Electronic Trading Volume Increases 29% NEW YORK, Aug. 14 /PRNewswire-FirstCall/ -- NYMEX Holdings, Inc. (NYSE:NMX), the parent company of the New York Mercantile Exchange, Inc., the world's largest physical commodities futures and options exchange, today announced that average daily volume was 1.883 million contracts for July 2008, a 30% increase from 1.446 million contracts per day in July 2007. NYMEX electronic volume on the CME Globex(R) electronic trading platform averaged 822,710 contracts per day for July 2008, representing a 29% increase over 636,774 contracts per day in July 2007 electronic volume. NYMEX floor-traded energy futures and options averaged 209,117 contracts per day for July 2008. COMEX electronic volume on CME Globex averaged 220,687 contracts per day for July 2008, and represented a 95% increase over 113,109 contracts per day in July 2007 electronic volume. COMEX floor-traded average daily volume was 43,533 contracts for July 2008. Average daily volume on NYMEX ClearPort(R) was 502,748 contracts for July 2008, compared to 365,427 contracts for July 2007, representing a 38% increase. The remaining volume of 83,839 trades per day consisted of other transactions which include position transfers and exchanges. Rolling Average Rate Per Contract -- The three month rolling average gross rate per contract for the period May through July 2008 was $1.58, while the average net rolling rate per contract, including direct transaction costs, for the same period was $1.34. July rates per contract and direct transaction costs are estimated (see Note below). Final June Rate Per Contract -- The following represents the final June 2008 rates per contract after adjustments to the estimated rate per contract we provided last month. Gross average rate per contract across all venues in June 2008 was $1.57, while the net average rate per contract, including direct transaction costs, was $1.35. This is compared to a gross average rate per contract of $1.54, and a net average rate per contract of $1.28 for June 2007. Direct transaction costs were $8.544 million for June 2008 versus $7.914 million for June 2007. Estimated July Rate Per Contract -- The following July average rates per contract are estimated (see Note below). Gross average rate per contract across all venues in July 2008 was $1.58, while the net average rate per contract, including direct transaction costs, was $1.33. This is compared to gross average rate per contract of $1.50, and a net average rate per contract of $1.24 for July 2007. Direct transaction costs were an estimated $10.411 million for July 2008 versus $7.831 million for July 2007. Note: Because we are providing an additional level of up-to-date information regarding our recent monthly rates per contract, our volumes and rates press releases will be issued within approximately ten business days after the end of the month. Also, the estimated figures are preliminary and can change due to the fact that the last days of the month have not been finalized and are thus subject to adjustments and corrections. Average daily volume is based on 22 trading days for July 2008 and 21 days for July 2007. About NYMEX Holdings, Inc. NYMEX Holdings, Inc. (NYSE:NMX) is the parent company of the New York Mercantile Exchange, Inc., the world's largest physical commodities exchange, offering futures and options trading in energy and metals contracts and clearing services for more than 400 off-exchange contracts. Through a hybrid model of open outcry floor trading and electronic trading on CME Globex(R) and NYMEX ClearPort(R), NYMEX offers crude oil, petroleum products, natural gas, coal, electricity, gold, silver, copper, aluminum, platinum group metals, emissions, and soft commodities contracts for trading and clearing virtually 24 hours each day. Further information about NYMEX Holdings, Inc. and the New York Mercantile Exchange, Inc. is available on the NYMEX website at http://www.nymex.com/. Forward Looking and Cautionary Statements This press release July contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to our future performance, operating results, strategy, and other future events. Such statements generally include words such as could, can, anticipate, believe, expect, seek, pursue, and similar words and terms, in connection with any discussion of future results. Forward-looking statements involve a number of assumptions, risks, and uncertainties, any of which July cause actual results to differ materially from the anticipated, estimated, or projected results referenced in forward-looking statements. In particular, the forward-looking statements of NYMEX Holdings, Inc., and its subsidiaries are subject to the following risks and uncertainties: the success and timing of new futures contracts and products; changes in political, economic, or industry conditions; the unfavorable resolution of material legal proceedings; the impact and timing of technological changes and the adequacy of intellectual property protection; the impact of legislative and regulatory actions, including without limitation, actions by the Commodity Futures Trading Commission; and terrorist activities and international hostilities, which July affect the general economy as well as oil and other commodity markets. We assume no obligation to update or supplement our forward-looking statements. -Tables Follow- JULY AVERAGE DAILY VOLUME Venue 2008 2007 NYMEX floor 209,117 227,316 NYMEX electronic 822,710 636,774 COMEX floor 43,533 38,566 COMEX electronic 220,687 113,109 NYMEX ClearPort(R) 502,748 365,427 Other 83,839 65,208 Total 1,882,634 1,446,400 THREE MONTH ROLLING AVERAGE DAILY VOLUME (For the period May through July) Venue 2008 2007 NYMEX floor 217,279 241,793 NYMEX electronic 882,386 622,150 COMEX floor 40,301 40,578 COMEX electronic 190,132 107,161 NYMEX ClearPort(R) 443,069 324,049 Other 97,359 75,963 Total 1,870,526 1,411,694 JUNE 2008 AVERAGE RATES PER CONTRACT Venue Net RPC NYMEX floor $1.61 NYMEX electronic $1.04 COMEX floor $1.72 COMEX electronic $1.48 NYMEX ClearPort(R) $1.67 Other $1.82 Total Average Net Rate $1.35 Direct Transaction Cost $0.22 Total Average Gross Rate $1.57 THREE MONTH ROLLING AVERAGE RATES PER CONTRACT (For the period April through June 2008) Venue Net RPC NYMEX floor $1.61 NYMEX electronic $1.03 COMEX floor $1.71 COMEX electronic $1.43 NYMEX ClearPort(R) $1.57 Other $1.85 Total Average Net Rate $1.32 Direct Transaction Cost $0.24 Total Average Gross Rate $1.56 JULY 2008 ESTIMATED AVERAGE RATES PER CONTRACT Venue Net RPC NYMEX floor $1.65 NYMEX electronic $1.04 COMEX floor $1.51 COMEX electronic $1.45 NYMEX ClearPort(R) $1.52 Other $1.86 Total Average Net Rate $1.33 Direct Transaction Cost $0.25 Total Average Gross Rate $1.58 THREE MONTH ROLLING ESTIMATED AVERAGE RATES PER CONTRACT (For the period May through July 2008) Venue Net RPC NYMEX floor $1.63 NYMEX electronic $1.05 COMEX floor $1.63 COMEX electronic $1.46 NYMEX ClearPort(R) $1.59 Other $1.85 Total Average Net Rate $1.34 Direct Transaction Cost $0.24 Total Average Gross Rate $1.58 DATASOURCE: NYMEX Holdings, Inc. CONTACT: Investors, Keil Decker, +1-212-299-2209, or Media, Anu Ahluwalia, +1-212-299-2439, both of NYMEX Holdings, Inc. Web site: http://www.nymex.com/

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