News Release

CBOT Precious Metals Complex Sets Daily Volume Record

Thu May 18 2006

For Immediate Release

Media Contact:
Jennifer Rook
312-435-3625
news@cbot.com

CBOT Precious Metals Complex Sets Daily Volume Record
Total Exchange Open Interest Reaches New High; Daily Volume Records Set in CBOT Equity Futures and Options Complex and Mini-sized Dow Contract

CHICAGO, IL, May 18, 2006 – The Chicago Board of Trade (CBOT®) announced today that its 100 percent electronically traded Precious Metals complex set an all-time high, as volume reached 102,237 contracts at the close of trading yesterday.  The previous record, 100,589 contracts, was reached on May 11, 2006.  In addition, for the second time this week, the Exchange set a new record for total open interest.  The new open interest record, 17,013,590 contracts, tops the earlier record of 16,841,302 contracts set on Monday, May 15.

The Exchange also enjoyed a record day in its Equity Index complex, with 213,245 futures and options contracts trading hands.  The prior record, 202,432 contracts, was set on October 6, 2005.  The new high mark was driven by record volume in the CBOT mini-sized Dow Jonessm futures contract.  Mini-sized Dow Jones futures volume climbed to 195,084 contracts, eclipsing the prior record of 186,544 contracts, also set on October 6, 2005.

The CBOT’s Gold futures complex set a new volume record of 90,021 contracts, a 10 percent rise compared with the old record of 81,797 contracts set May 11, 2006. Volume in the CBOT Full-sized Gold (100 oz.) futures increased 11 percent, climbing to 62,003 contracts, beating the previous record of 55,670 contracts set on May 11. And volume in the CBOT mini-sized Gold (33 oz.) futures grew seven percent, achieving a new record of 28,018 contracts, surpassing the previous record of 26,127 contracts set on May 11.     

Month-to-date, the CBOT Gold futures complex accounted for nearly 40 percent of listed Gold futures contracts traded in North America.

The CBOT’s Precious Metals complex consists of Full-sized (100 oz.) Gold futures, mini-sized (33 oz.) Gold futures, Full-sized Gold options, Full-sized (5,000 oz.) Silver futures and mini-sized (1,000 oz.) Silver 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
In this release, our use of the words “may,” “should,” “could,” “expects,” “plans,” “anticipates,” “believes,” “predicts,” “potential” or “continue” or other comparable terminology is intended to identify forward-looking statements.  These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict.  Therefore, actual outcomes and results may differ materially from what is expressed or implied in any forward-looking statements.  More detailed information about factors that may affect our performance may be found in filings made by CBOT Holdings, Securities and Exchange Commission, which can be obtained at its website at www.sec.gov. We undertake no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

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