CME To Close Open Outcry Trading Of Interest Rates At 1 P.M.

Chicago Mercantile Exchange Inc. (CME) will close open outcry pit trading of its interest rate products, including its flagship Eurodollar futures contract, at 1 p.m. (Central time) today, one hour earlier than normal. The action is in response to customer requests and is in coordination with related markets which are closing early due to the power outages in the New York region.

Electronic trading of Eurodollars and other interest rates on CME's GLOBEX^® electronic trading platform will continue until the regular time of 4 p.m.

All other CME markets are operating according to their regular schedules.

Trading in CME financial products will resume on GLOBEX at 5:30 p.m., Sunday, Aug. 17, for a trade date of Monday, Aug. 18.

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.