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Three CBOE Seats Sell At New Record Prices Today; Sale Of $800,000 On Thursday, December 8 Sets All-Time Record

Date 08/12/2005

The Chicago Board Options Exchange (CBOE) announced today that three seats, or memberships, sold at all-time record prices today, beating records established earlier this week. The three seat sales today at $780,000, $795,000 and $800,000 all surpassed the previous record price of $777,000, which was set on Tuesday, December 6th. Today's sale was the 99th seat traded this year.

Seats are bought and sold via CBOE's Membership Department using an auction method in which bids and offers are submitted to the Exchange on an "as-desired" basis. When a bid matches an offer, a sale is made.

CBOE, the world's largest options marketplace and the creator of listed options, is regulated by the SEC. For additional information about the CBOE and its products, access the CBOE website at: http://www.cboe.com/