CBOT Holdings Sets Record Date for Jul 9 Mtg to Vote on CME Merger

CBOT Holdings Announces Record Date for July 9th Special Meeting to Vote on CME Merger

CBOT Holdings, Inc., holding company for the Chicago Board of Trade (CBOT®) (NYSE: BOT), one of the leading global derivatives exchanges, announced today that its Board of Directors has established May 29, 2007 as the record date for the July 9, 2007 special meeting of stockholders to vote on the proposed merger with Chicago Mercantile Exchange Holdings Inc. Only holders of record of CBOT Holdings Class A common stock as of the close of business on May 29, 2007 will be entitled to notice of, and to vote at, the July 9, 2007 special meeting.

May 29, 2007 will also be the record date for CBOT’s July 9, 2007 special meeting of members to vote on certain matters related to the proposed CME merger.

CBOT Holdings and CBOT currently expect to distribute revised proxy materials to stockholders and members as soon as practicable following the May 29, 2007 record date.