For Immediate Release Media Contact: Jennifer Rook 312-435-3625 firstname.lastname@example.org CBOT Gold Futures Complex Captures 50 Percent Market Share CHICAGO, IL, June 26, 2006 â The Chicago Board of Trade (CBOTÂ®) announced today that its 100-percent electronically traded Gold futures complex captured a 50 percent market share in daily volume of listed Gold futures traded in North America for the first time on June 23. The CBOTâs Gold complex traded 27,700 contracts in Full-sized Gold futures and 8,573 mini-sized Gold futures, for a total daily volume of 36,273 contracts. Month-to-date, the CBOT Gold complex accounts for 44 percent of listed Gold futures traded in North America. Robert Ray, CBOT Senior Vice President of Business Development, said: âBetween depth of liquidity and the marketplaceâs preference for speed and straight-through processing made possible by our electronic contracts, the CBOT Gold complex continues to shine. Reaching this threshold is proof that our complex is playing a greater role in metals price discovery.â The CBOTâs Precious Metals complex consists of Full-sized (100 oz.) Gold futures, Full-sized Gold options, mini-sized (33 oz.) Gold futures, Full-sized (5,000 oz.) Silver futures, Full-sized Silver options and mini-sized (1,000 oz.) Silver futures contracts. For more information on the CBOT and its Metals complex, 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 âmay,â âshould,â âcould,â âexpects,â âplans,â âanticipates,â âbelieves,â âpredicts,â âpotentialâ or âcontinueâ 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.