News Release

Exchange to Change Margins for Aluminum Futures Contract

Thu Feb 23 2006

NEW YORK, N.Y., February 23, 2006 — The New York Mercantile Exchange, Inc., today announced margin changes for its aluminum futures contract, beginning at the close of business on Monday, February 27.

Margins for the aluminum futures contract will increase to $2,250 from $1,500 for clearing and non–clearing members and to $3,038 from $2,025 for customers.

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