August Is Third Consecutive Month Of Record Volume At CBOE Futures Exchange - Busiest Day In CFE History, Numerous Records, Propel Trading To 251% Increase Over Year-Ago

The CBOE Futures Exchange, LLC (CFE) announced today that trading volume during August 2007 totaled 183,173 contracts, the busiest month ever at CFE. For the third consecutive month, trading at CFE set a new all-time record as August's volume surpassed the 121,285 contracts traded during July, the previous all-time high. August's average daily volume of 7,964 contracts, also a new all-time high, was up from the year-ago average daily volume of 2,271 contracts.

On Wednesday, August 1, CFE experienced the busiest trading day in its history when 27,907 contracts traded, topping the previous high of 13,553 contracts traded on Thursday, July 26, 2007.

Futures on the CBOE Volatility Index (VIX) set three trading records in August. For the month, volume totaled 163,079 contracts, a new record. August's volume rose 46% over July's volume of 111,814 contracts, which had been the previous record. Average daily volume in VIX futures during August was a record 7,090 contracts, while at month's end, open interest stood at 63,995 contracts, 41% ahead of last August. On Wednesday, August 1, a new single-day high of 26,846 VIX futures contracts traded.

CFE's two newest contracts experienced positive volume growth during their first full month of trading. In futures on the CBOE Russell 2000 Volatility Index (ticker VR), volume totaled 10,217 contracts, while volume in futures on the CBOE NASDAQ-100 Volatility Index (ticker VN) was 773 contracts during August. Both contracts began trading on July 6, 2007.

Volume in futures on the CBOE DJIA Volatility Index (ticker DV) totaled 7,253 contracts traded during August, setting a new record for monthly volume, and increasing 87% over the year-ago total of 3,870 contracts. Trading activity in CBOE S&P 500 3-Month Variance futures (ticker VT) totaled 1,021 contracts, up 334% over August 2006.

CBOE Futures Exchange August 2007 Volume Summary
	August 2007 Volume	% Change vs August 2006	% Change vs July 2007	Year-To-Date Volume	% Change vs 2006
Exchange	183,173	+251%	+51%	661,456	+38%
Average Daily Volume	7,964	+251%	+38%	3,191	+67%
Open Interest	70,334	+47%	-9%	--	--

"August was the third consecutive month of record volume and the busiest month to date in CFE's four year history," said Andrew Lowenthal, Managing Director, CBOE Futures Exchange. "Clearly, volatility as its own asset class is gaining significance with investors and CFE's suite of products are proving to be viable instruments for trading volatility. Increasingly, investors are finding a variety of uses for volatility futures - from taking a view on the direction of market volatility, to hedging volatility risk, to diversifying a portfolio."

Year-to-date, total CFE volume is 661,456 contracts traded for the first eight months of 2007, up 38% from 2006's year-to-date volume of 478,424 contracts. Open interest stood at 70,334 contracts at the end of August, 47% ahead of August 2006.

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: http://www.cboe.com/CFE.