News Release

CBOT Exchange-Wide Open Interest Exceeds 15.3 Million Contracts

Thu Apr 13 2006

For Immediate Release

Craig Grabiner
(312) 341-5758



Precious Metals contracts also reach new OI highs

CHICAGO, IL, April 13, 2006 – The Chicago Board of Trade (CBOT®) announced today that on Wednesday, April 12, Exchange-wide open interest reached record levels, surpassing 15.3 million contracts.  Total Exchange open interest climbed to 15,375,879 contracts and eclipsed the previous record of 15,187,139 set on May 19, 2005.

In addition, CBOT 100 percent electronically traded Metals contracts continued to set new records, building on its recent record-setting pace.  Full-sized Gold options (100 oz.) and Full-sized (5,000 oz.) and mini-sized Silver futures (1,000 oz.) all reached new open interest highs. 

Finally, CBOT products based on the short end of the yield curve achieved new open interest highs, with Two-Year Treasury Note options and 30-Day Fed Fund options climbing to new records.

Open interest represents the number of trading positions that have not yet been offset and closed at the end of a trading day, and is considered by many to reflect the vibrancy of a market.

For more information on CBOT products, please visit the Exchange’s website at

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

In this release, our use of the words “may,” “will,” “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 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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