CBOE Creates Two New Volatility Indexes Tied To Gold And Euro Currency - New Benchmarks Continue the Expansion Of CBOE's Volatility Franchise Into New Asset Classes

The Chicago Board Options Exchange (CBOE) announced today that on Friday, August 1, 2008, the Exchange will begin publishing two new Volatility benchmarks -- the CBOE Gold Volatility Index (ticker symbol GVZ) and the CBOE EuroCurrency Volatility Index (ticker symbol EVZ).These indexes are benchmarks designed to measure the expected volatility of the respective underlying assets; they are not tradable instruments.GVZ and EVZ values will be disseminated every 15 seconds daily through all major data vendors.

The CBOE Gold Volatility Index (GVZ) will measure the market's expectation of 30-day volatility of gold prices by applying the well-known CBOE Volatility Index (VIX) methodology to options on the SPDR Gold Shares exchange-traded fund (ticker symbol GLD), spanning a wide range of strike prices.For a more detailed description of the CBOE Gold Volatility Index, including historical prices, see http://www.cboe.com/GVZ.

The CBOE EuroCurrency Volatility Index (EVZ) will measure the market's expectation of 30-day volatility of the Euro/U.S. dollar exchange rate by applying the VIX methodology to options on the CurrencyShares Euro Trust (ticker symbol FXE).Additional details on the CBOE EuroCurrency Volatility Index, including historical pricing data, can be found at http://www.cboe.com/EVZ.

The launch of these two new asset class Volatility benchmarks follows the introduction of the CBOE Crude Oil Volatility Index (ticker symbol OVX) on July 15, 2008, and extends the Exchange's Volatility franchise into new asset classes, including exchange-traded funds (ETFs) that directly hold commodities.In the coming months, CBOE plans to develop additional Volatility indexes that will track other commodity-based ETFs, currencies and interest rates.

CBOE also currently publishes data on nine other equity-related Volatility benchmarks and strategies, including: the CBOE Volatility Index (VIX), which is based on the S&P 500 Index; CBOE DJIA Volatility Index (VXD);CBOE Nasdaq Volatility Index (VXN); CBOE Russell 2000 Volatility Index (RVX); CBOE S&P 100 Volatility Index (VXO); CBOE S&P 500 3-Month Volatility Index (VXV); CBOE VIX Premium Strategy Index (VPD); CBOE Capped VIX Premium Strategy Index (VPN); and the CBOE S&P 500 VARB-X Strategy Benchmark (VTY).

In total, CBOE now disseminates information on 12 Volatility benchmarks and strategies.The Exchange also trades three different Volatility options -- VIX, RVX and VXN -- and six different Volatility futures at the CBOE Futures Exchange (CFE) -- VIX, RVX, VXN, VXD, and CBOE S&P 500 3-Month and 12-Month Variance futures.For additional information on all of CBOE's Volatility products, visit http://www.cboe.com/Volatility.

CBOE, the largest options marketplace in the U.S. and the creator of listed options, is regulated by the Securities and Exchange Commission (SEC).For additional information about the CBOE and its products, access the CBOE website at: www.cboe.com/.