Diamonds Shine At CBOE

The Chicago Board Options Exchange (CBOE) announced today that trading in options on DIAMONDS (DIA) established a volume record yesterday when 62,654 contracts traded. The previous record was set on June 14th when 37,624 contracts traded. Average daily volume in DIA options has been 12,648 contracts since its launch last month, on May 20th. At the close of trading on June 24, 2002, open interest in DIA options stood at 86,779 contracts (32,030 calls, 54,749 puts).

DIAMONDS are shares in an exchange-traded fund designed to track the performance of the Dow Jones Industrial Average (DJIA). Options on DIAMONDS provide investors with exposure to the DJIA in one transaction that can also offer the benefit of limited risk. CBOE also offers Options on the Dow (DJX) which are based on 1/100th the value of the Dow Jones Industrial Average. Buyers of DIA or DJX options have pre-determined risk that is limited to the amount of premium paid.

For more information about DIA and DJX options, please visit the Index Options section of CBOE's website, at www.cboe.com/dia or www.cboe.com/djx.

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