News Release

CME Announces Market Hours of Operation in Honor of National Day of Mourning for President Gerald R. Ford

Fri Dec 29 2006

CHICAGO, Dec. 29 /PRNewswire-FirstCall/ -- CME, the world's largest and most diverse financial exchange, has announced that it will observe the passing of President Gerald R. Ford by closing all Commodity and Equity Index markets on Tuesday, January 2, 2007. In addition, Foreign Exchange and Interest Rate markets will remain open until Noon Central Time on Tuesday, January 2. All products trading on CME Globex®, the exchange's electronic trading platform, will reopen at their regularly scheduled time Tuesday, January 2 for a trade date of Wednesday, January 3, 2007.

CME ( ) is the world's largest and most diverse financial exchange. As an international marketplace, CME brings together buyers and sellers on the CME Globex® electronic trading platform and on its trading floors. CME offers futures and options on futures in these product areas: interest rates, stock indexes, foreign exchange, agricultural commodities, energy, and alternative investment products such as weather, real estate and economic derivatives. CME is a wholly-owned subsidiary of Chicago Mercantile Exchange Holdings Inc. (NYSE: CME)(NASDAQ: CME), which is part of the Russell 1000® Index and the S&P 500® Index.

Chicago Mercantile Exchange, CME, the globe logo, CME Globex and E-mini are trademarks of Chicago Mercantile Exchange Inc. Further information about CME and its products is available on the CME Web site at .



CONTACT: Media, Allan Schoenberg, +1-312-930-8189, or Pamela Plehn,
+1-312-930-3446, or , or Investors, John Peschier,
+1-312-930-8491, all of CME

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+1 312 930 3434