CBOE Sets New Single-Day Volume Record - 3.05 Million Contracts Is The Busiest Trading Day In CBOE History

The Chicago Board Options Exchange (CBOE) announced today that reported total trading volume at CBOE on Thursday, April 14th was 3,052,647 contracts, setting a new volume record at CBOE for the busiest single trading day in the Exchange's 32 year history and the first time that trading volume topped three million contracts in a single day. Today's volume surpassed the previous all-time single-day volume record of 2,726,267 contracts traded at CBOE on April 18, 2001.

Through the first three months of 2005, CBOE's year-to-date average daily volume has been 1,709,243 contracts traded, which is 12% ahead of 2004, a record year at CBOE.

"On the heels of last year's record volume at CBOE, 2005 is already on pace to set a new high mark for trading volume," said William J. Brodsky, Chairman and CEO, Chicago Board Options Exchange."Options continue proving to be incredibly versatile risk management tools and CBOE has again emerged as the marketplace of choice during periods of high volatility."

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, visit the CBOE website at: http://www.cboe.com/.