News Release

CBOT $10 Dow Futures Set Open Interest Record Surpassing 100,000 Contracts

Thu Dec 14 2006

For Immediate Release

Media Contact:
Craig Grabiner
(312) 341-5758

Exchange Also Sets Open Interest Record for $5 Dow Futures As Equity Index Complex Open Interest Reaches New High Mark

CHICAGO, IL, December 14, 2006 – The Chicago Board of Trade (CBOT®) announced today that its $10 Dow Jonessm futures contract set a record on Wednesday, as open interest climbed to 109,396 contracts at the close of trading.  The new record marks the first time open interest in the $10 Dow Jones contract exceeded 100,000 contracts.  The previous record, 93,434 contracts, was set on Tuesday, December 12, 2006.

For the second consecutive day, the Exchange’s $5 mini-sized Dowsm contract also set a new open interest record.  The new open interest record for the $5 Dow contract stands at 174,926 contracts.  It surpasses the previous record,166,945 contracts, set on December 12, 2006.

The new records led to a composite open interest record for the Exchange’s Equity Index futures and options complex, with 322,656 contracts traded yesterday.  The prior record, 297,015 contracts, was set on December 12, 2006.  The CBOT Equity Index futures complex includes $5, $10 and $25 Dow Jones futures contracts as well as $5 and $10 Dow Jones options on futures contracts.

For more information on the CBOT and its products, please visit

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

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  We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

Corporate Communications

+1 312 930 3434