For Immediate Release

Media Contact:
Nicole L. Rallings
(312) 341-3378
news@cbot.com

CBOT TO OBSERVE MOMENTS OF SILENCE IN HONOR OF SEPTEMBER 11 ATTACK VICTIMS

CHICAGO, IL, September 8, 2006 – The Chicago Board of Trade (CBOT^®) today announced that on Monday, September 11, 2006, in conjunction with other major financial exchanges, the CBOT open auction market will observe two separate one-minute periods of silence in memory of the terrorist attack victims of September 11, 2001.

The moments of silence will occur at 7:46 a.m. and 9:29 a.m. CT.  The CBOT Agricultural markets, which normally open at 9:30 a.m. CT, will open instead at 9:31 a.m. CT.  The 9:31 a.m. open will apply to both open auction and e-cbot Agricultural trading.

For more information, please visit cbot.com.

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.

Forward Looking Statements

Certain statements in this press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and includes any use of the words “may,” “should,” “could,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential” or “continue”.  These statements are based on management’s current expectations and involve assumptions that may be subject to change or risks and uncertainties that could cause actual results to differ materially from those set forth in the statements.  Accordingly, actual outcomes and results may differ materially from what is expressed or implied in any forward-looking statement contained in this press release.  The factors that may affect our performance may be found in the Annual Report on Form 10-K and other periodic reports filed by CBOT Holdings, Inc. with the U.S. Securities and Exchange Commission (“SEC”).  These filings can be obtained at the SEC’s website at www.sec.gov.  We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.