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Chicago Mercantile Exchange Holdings Inc. Confirmed It Is Proceeding With IPO

Date 10/10/2002

Chicago Mercantile Exchange Holdings Inc. (CME Holdings) today confirmed, in response to inquiries from the media and its shareholders, that the dividend policy announced earlier today is in conjunction with the company's plans to proceed with its initial public offering (IPO).

Chicago Mercantile Exchange Holdings Inc. is the parent company of Chicago Mercantile Exchange Inc. (www.cme.com), the largest futures exchange in the United States based on notional value, trading volume and open interest. As an international marketplace, CME brings together buyers and sellers on its trading floors and GLOBEX around-the-clock electronic trading platform. CME offers futures contracts and options on futures primarily in four product areas: interest rates, stock indexes, foreign exchange and commodities. The exchange moves about $1.5 billion per day in settlement payments and manages $27.1 billion in collateral deposits.

A registration statement relating to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This announcement shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.