CBOT Holdings To Release 2006 First Quarter Financial Results April 19, 2006

CBOT Holdings, Inc., holding company for the Chicago Board of Trade (CBOT®) (NYSE: BOT), one of the leading global derivatives exchanges, today announced that it will release financial results for its 2006 first quarter, ended March 31, 2006, on Wednesday, April 19, 2006. A news release will be issued prior to the NYSE market opening and will be followed by a conference call at 8:00 am ET, 7:00 am CT. The call will last approximately one hour and will feature remarks by the company's senior management.

The conference call and any accompanying slides will be publicly available via live web cast from the investor relations section of the CBOT Holdings web site at http://www.cbot.com. The web cast will be available for replay at the same address approximately two hours following its conclusion. Those wishing to listen to the live conference via telephone should dial 800.901.5248 (U.S. callers) and 617.786.4512 (International callers) at least 10 minutes before the call begins. The verbal passcode for the call is “CBOT Holdings.”

About the CBOT
As one of the leading global derivative exchanges, the Chicago Board of Trade provides a diverse mix of financial, equity, and commodity futures and options-on-futures products. Building on its 158-year history, the CBOT continues to advance into the future using the strength of deep liquidity, market integrity and member-trader expertise. Using superior trading technology in both electronic and open-auction trading platforms, the CBOT provides premier customer service to risk managers and investors worldwide. For more information visit our website at www.cbot.com.