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
news@cbot.com

CBOT $10 DOW FUTURES SET DAILY OPEN INTEREST RECORD AS TOTAL SURPASSES 100,000 CONTRACTS FOR THE FIRST TIME
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 www.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

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