CBOE Futures Exchange's Year-To-Date Volume Is 50% Ahead Of Last Year - Average Daily Volume Is Exceeding 2007's Record Pace, July 2008 Volume Down 24% Compared To Year-Ago

The CBOE Futures Exchange, LLC (CFE) today announced that 2008 year-to-date trading volume is 50% ahead of the same period from a year-ago.Through the end of July, total trading volume at CFE stands at 701,454 contracts traded, compared to 468,317 contracts traded through July 2007, which was a record year at CFE.Year-to-date, average daily volume through the end of July stands at 4,772 contracts, compared to the 3,191 contracts from 2007.

During the month of July, average daily volume was 4,208 contracts, a decline of 27% from the 5,775 contracts per day during July 2007.Total trading volume at CFE during July was 92,565 contracts, down 24% from the year-ago volume of 121,285 contracts.This was the first time since April 2006 that CFE did not post a year-over-year gain in monthly trading volume and only the fourth time in CFE's five-year history.

Monthly volume in VIX futures, based on the CBOE Volatility Index (ticker VX), totaled 85,931 contracts - 23% below the July 2007 volume of 111,814 contracts.Average daily volume in VIX futures during July 2008 was 3,906 contracts.

Volume in futures on the CBOE DJIA Volatility Index (ticker DV) totaled 2,886 contracts during July, an increase of 47% over the year-ago volume of 1,969 contracts traded.Volume in the CBOE Russell 2000 Volatility Index futures, RVX, (ticker VR) totaled 3,039 contracts traded for the month, off 32% from the July 2007 volume of 4,437 contracts.

CBOE Futures Exchange July 2008 Volume Summary
	July 2008 Volume	% Change vs July 2007	% Change vs June 2008	Year-To-Date Volume	% Change vs 2007
Exchange	92,565	-24%	-7%	701,454	+50%
Average Daily Volume	4,208	-27%	-11%	4,772	+49%

CFE currently offers futures on seven different contracts, including: the CBOE Volatility Index (VIX), CBOE DJIA Volatility Index (VXD), CBOE Nasdaq-100 Volatility Index (VXN), CBOE Russell 2000 Volatility Index (RVX), CBOE S&P 500 3-Month and 12-Month Variance (VT and VA, respectively), and the CBOE S&P 500 BuyWrite Index (BXM).

CFE, launched in March 2004, is a wholly-owned subsidiary of Chicago Board Options Exchange, Incorporated, offering an all-electronic, open access market model, with traders providing liquidity and making markets.CFE trades are cleared by triple-A rated Options Clearing Corporation (OCC).CBOE Futures Exchange is regulated by the Commodity Futures Trading Commission (CFTC).

More information on CFE and its products, including contract specifications, can be found at: www.cboe.com/CFE.