FOR IMMEDIATE RELEASE View PDf

Press Contact:
Mary Haffenberg
OneChicago, LLC
(312) 424-8519

OneChicago January Volume Increases 343%

Twelfth Consecutive Month of Year-Over-Year Increase;

New Open Interest Record
CHICAGO, IL – Feb. 1, 2006 – OneChicago, LLC today reported that 822,700 security futures contracts traded at the Exchange in January, 343% more than in January 2005. Average daily volume was 41,135. Open interest reached a record, standing at 1.63 million contracts on January 31. OneChicago President Marty Doyle said, “January marks the twelfth consecutive month that we have reported a year-over-year volume increase. We are off to a great start in the New Year. We look forward to continuing our rate of growth by reaching out to new customers and expanding our menu of security futures products to include additional ETF futures.”