OCTOBER VOLUME INCREASES 31% AT CBOE FUTURES EXCHANGE

2 October 2007

The CBOE Futures Exchange, LLC (CFE) announced today that trading volume during October 2007 totaled 108,103 contracts, an increase of 31% over October 2006’s volume of 82,705 contracts. October’s average daily volume of 4,700 contracts was up 25% from the year-ago average daily volume of 3,759 contracts. October 2007 was the third busiest month on record at CFE since launching in March 2004.

Futures on the CBOE Volatility Index (VIX) monthly volume totaled 97,776 contracts, a 23% rise over the same time period last year with a volume of 79,187 contracts. Average daily volume in VIX futures during October was 4,251 contracts, 18% ahead of last October.

Volume in futures on the CBOE DJIA Volatility Index (ticker DV) totaled 4,069 contracts traded during October, increasing 20% over the year-ago total of 3,384 contracts. Trading activity in the CBOE Russell 2000 Volatility Index futures, RVX, (ticker VR) totaled 4,804 contracts, up 119% over September 2007. VR futures were launched on July 6, 2007.

Year-to-date, total CFE volume is 854,244 contracts traded for the first ten months of 2007, up 120% from 2006’s year-to-date volume of 388,129 contracts. Open interest stood at 80,818 contracts at the end of October, 62% ahead of October 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).

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