News Release

CBOT Full-Sized Silver Futures Set Volume Record

Tue Dec 19 2006

For Immediate Release

Media Contact:
Debbie Baratz
312-435-3625
news@cbot.com

CBOT FULL-SIZED SILVER FUTURES SET VOLUME RECORD
Dow Jones-AIG Commodity Index Excess Return volume surpasses 1,000 contracts 

CHICAGO, IL, December 19, 2006 – The Chicago Board of Trade (CBOT®) today announced that trading of its 5,000 oz. silver futures contract reached a new daily volume record yesterday with 14,841 contracts, surpassing the previous record set on December 15, 2006 with 14,409 contracts.

In addition, the CBOT’s Dow Jones-AIG Commodity Index Excess Return futures contract volume (DJ-AIG ER), launched in October, hit 1,000 contracts for the first time on December 15, 2006 with 1,228 contracts. 

Effective yesterday, the DJ-AIG ER futures contract is now available for wholesale transactions Monday through Friday from 8:15 am to 3:30 p.m. CT. Wholesale transactions are designed to offer the convenience of negotiating a large order at a single price with a designated and appropriate counterpart. Combined with the security of a trade guaranteed by the CBOT’s clearing services provider, wholesale transactions are intended to provide market participants with increased flexibility while maintaining market integrity. For more details on the CBOT wholesale transaction facility, please visit the following link: http://www.cbot.com/cbot/pub/page/0,3181,1553,00.html

The electronically-traded CBOT DJ-AIG ER contract is the result of a license agreement among the CBOT, Dow JonesSM and AIG Financial Products Corp. (AIGFP).

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.

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