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Chicago Mercantile Exchange To Commemorate September 11, 2001

Date 09/09/2003

On Thursday, Sept. 11, Chicago Mercantile Exchange Inc. (CME) will observe four separate minutes of silence in memory of those who lost their lives on Sept. 11, 2001.

In conjunction with planned memorial activities in New York and a similar observance at the New York Stock Exchange, a minute of silence will occur on CME's trading floors at 7:46 a.m., 8:03 a.m., 8:59 a.m. and 9:29 a.m. Chicago time. Traders on CME's GLOBEX® electronic trading platform are asked to observe the periods of silence at those times.

Chicago Mercantile Exchange Inc. (www.cme.com) is the largest futures exchange in the United States. As an international marketplace, CME brings together buyers and sellers on its trading floors and GLOBEX® electronic trading platform. CME offers futures and options on futures primarily in four product areas: interest rates, stock indexes, foreign exchange and commodities. The exchange moved about $1.5 billion per day in settlement payments in the first half of 2003 and managed $29.1 billion in collateral deposits at June 30, 2003. CME is a wholly owned subsidiary of Chicago Mercantile Exchange Holdings Inc. (NYSE: CME), which is part of the Russell 1000® Index.

Chicago Mercantile Exchange, CME and GLOBEX are registered trademarks of Chicago Mercantile Exchange Inc. Russell 1000 and other trade names, service marks, trademarks and registered trademarks that are not proprietary to Chicago Mercantile Exchange Inc. are the property of their respective owners, and are used herein under license. Further information about CME and its products is available on the CME Web site at www.cme.com.