OneChicago Reports January 2005 Volume

OneChicago, LLC today announced that 185,728 security futures contracts traded at the Exchange in January, a 22% increase over December volume and about the same amount that traded in January 2004. Open interest stood at 175,197 contracts as of January 31.

Each single stock futures contract is equivalent to 100 shares of the underlying stock or exchange-traded fund. The top five single stock futures contracts by volume in January were:

• SBC Communications Inc. (SBC1C)
• Advanced Micro Devices Inc. (AMD1C)
• Verizon Communications Inc. (VZ1C)
• Bank of America Corp. (BAC1C)
• JP Morgan Chase & Co. (JPM1C)

The Exchange lists 119 single stock futures, including futures on the DIAMONDS Trust.

OneChicago is a joint venture of the Chicago Board Options Exchange Incorporated® (CBOE®), Chicago Mercantile Exchange Inc. (CME) and the Chicago Board of Trade (CBOT®). All products are electronically traded on the CBOEdirect® match engine and accessible through the CBOEdirect and GLOBEX® platforms. All security futures can be traded out of either a securities or a futures account.

For more information about OneChicago and its products, please access the OneChicago Web site at www.OneChicago.com.

January 2005 OneChicago Volume Report