FOR IMMEDIATE RELEASE


AUGUST IS MOST ACTIVE TRADING MONTH OF YEAR AT CFE; Average Daily Volume Rose 23% From July, 16% Above Year-Ago, Fourth Consecutive Month-Over-Month Volume Gain

CHICAGO, September 1, 2009 - The CBOE Futures Exchange, LLC (CFE) today announced that August was the most active month of trading during 2009.Average daily volume during August 2009 was 5,025 contracts, exceeding 4,084 contracts per day during July 2009 by 23 percent.When compared to a year ago, the average daily volume during August was 16 percent above 4,343 contracts per day during the same month last year.August was the fourth consecutive month this year that CFE posted month-over-month volume gains.

A total of 105,506 contracts traded at CFE during August 2009, an increase of 17 percent over 89,851 contracts traded during July 2009. Compared to a year ago, August 2009 total volume climbed 16 percent from 91,218 contracts traded in August 2008.Year to date, CFE's total volume of 497,858 contracts is 37 percent behind 2008's pace of 792,672 contracts.

CBOE Futures Exchange August 2009 Volume Summary
	August 2009 Volume 21 trading days	% Change vs August 2008 21 trading days	% Change vs July 2009 22 trading days	Year-To Date Volume 167 trading days	% Change vs 2008 168 trading days
Exchange	105,506	+16%	+17%	497,858	-37%
Average Daily Volume	5,025	+16%	+23%	2,981	-37%

August 2009 volume in VIX futures, based on the CBOE Volatility Index (ticker VX), totaled 104,861 contracts, an increase of 18 percent from 88,941 contracts traded during the previous month, while also rising 23 percent from 85,591 contracts traded in August 2008.Average daily volume in VIX futures during August was 4,993contracts, 23 percent ahead of 4,043 contracts per day in July, and 22 percent more than 4,076 contracts per day from a year ago.

Volume in CFE's newest contract, the CBOE mini-VIX futures (ticker symbol VM), totaled 629 contracts traded during August, off 26 percent from 845 contracts during July.CBOE mini-VIX futures contracts are one-tenth the size of CFE's standard CBOE VIX futures contract.CBOE mini-VIX futures were launched in March 2009. Additional information on mini-VIX futures can be found at: http://cfe.cboe.com/Products/Products_VM.aspx.

CFE currently offers futures on five different contracts, including: the CBOE Volatility Index (VIX), CBOE mini-VIX (VM), CBOE Russell 2000 Volatility Index (RVX) and CBOE S&P 500 3-Month and 12-Month Variance (VT and VA, respectively).

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 the 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.


CBOE Media Contacts:
Gail Osten
(312) 786-7123
osten@cboe.com

Gary Compton
(312) 786-7612
comptong@cboe.com

Analyst Contact:
Debbie Koopman
(312) 786-7136
koopman@cboe.com


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