CBOT Full-Sized Gold Futures Contract Surpass 60 Percent Market Share For The First Time In A Single Trading Day - CBOT Full-Sized Silver Futures Achieves 10,000 Contracts In Open Interest

The Chicago Board of Trade (CBOT®) announced today that its Full-sized (100 oz.) Gold futures contract surpassed a market share milestone of 60 percent on October 2, capturing 64 percent of all listed Gold futures traded in North America that day. Open interest in the CBOT's Full-sized (5,000 oz.) Silver futures grew beyond 10,000 contracts and set a new record of 10,064 contracts yesterday. The previous record was 9,959 contracts set on September 29, 2006.

Average daily volume in the CBOT Gold complex, consisting of Full-sized (100 oz.) Gold futures and options and mini-sized (33 oz.) Gold futures contracts, reached 52,464 contracts during September and achieved a market share of 54 percent of all Gold futures traded in North America for the month.

The CBOT Metals Complex includes Full-sized (100 oz.) Gold futures and options contracts, mini-sized (33 oz.) Gold futures contracts, Full-sized (5,000 oz.) Silver futures and options contracts and mini-sized (1,000 oz.) Silver futures contracts. These products are available for trading 22 hours per day on the e-cbot electronic trading platform. For more information about the CBOT Precious Metals Complex please visit the Exchange's web site at www.cbot.com/metals.

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.