News Release

NYMEX Announces Margins for the New COMEX Futures Contracts on CME GLOBEX®

Thu Nov 30 2006

NEW YORK, N.Y., November 30, 2006 — The New York Mercantile Exchange, Inc. today announced the margins for the new COMEX futures contracts that will be offered for trading on CME Globex on December 3 for trade date December 4.

Margins for the COMEX miNY gold futures contract will be $1,250 for clearing and non-clearing members and $1,688 for customers. Spread margins will be $25 for clearing and non-clearing members and $34 for customers.

Margins for the COMEX miNY silver futures contract will be $2,000 for clearing and non-clearing members and $2,700 for customers. Spread margins will be $40 for clearing and non-clearing members and $54 for customers.

Margins for the COMEX miNY copper futures contract will be $2,500 for clearing and non-clearing members and $3,375 for customers. Spread margins will be $40 for clearing and non-clearing members and $54 for customers.

Margins for the Asian gold futures contract will be $800 for clearing and non-clearing members and $1,080 for customers. Spread margins will be $20 for clearing and non-clearing members and $27 for customers.

Margins for the Asian platinum futures contract will be $960 for clearing members, $1,056 for non-clearing members, and $1,296 for customers. Spread margins will be $160 for clearing members, $176 for non-clearing members, and $216 for customers.

Margins for the Asian palladium futures contract will be $320 for clearing members, $352 for non-clearing members, and $432 for customers. Spread margins will be $80 for clearing members, $88 for non-clearing members, and $108 for customers.

Margins for the London copper grade A futures contract will be $2,200 for clearing and non-clearing members and $2,970 for customers. Spread margins will be $80 for clearing and non-clearing members and $108 for customers.

Margins for the London aluminium futures contract will be $1,400 for clearing and non-clearing members and $1,890 for customers. Spread margins will be $80 for clearing and non-clearing members and $108 for customers.

Margins for the London SGH zinc futures contract will be $3,000 for clearing and non-clearing members and $4,050 for customers. Spread margins will be $160 for clearing and non-clearing members and $216 for customers.

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Forward Looking and Cautionary Statements
This press release may 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 may 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 may affect the general economy as well as oil and other commodity markets. We assume no obligation to update or supplement our forward–looking statements.

Contact: Anu Ahluwalia, 212-299-2439

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