ISE Intl Secs Exchange Hldgs

The International Securities Exchange (NYSE: ISE) said today that open interest in ISE FX OptionsSM has reached 103,910 contracts. ISE introduced its FX options product on April 17, 2007 with trading in four currency pairs: U.S. Dollar/Euro (Symbol: EUI), U.S. Dollar/British Pound (Symbol: BPX), U.S. Dollar/Japanese Yen (Symbol: YUK), and U.S. Dollar/Canadian Dollar (Symbol: CDD). Average daily volume (ADV) in ISE FX Options was 2,958 contracts for the past two months. ISE FX Options provide investors with a new security product to gain exposure to movements in the global foreign currency markets. As exchange-listed securities, ISE FX Options can be easily accessed through all options-enabled brokerage accounts. These products are cash-settled in U.S. Dollars and have European style exercise. Timber Hill LLC is the Primary Market Maker in these products. Competitive Market Makers include Citigroup Derivatives Markets Inc., Lehman Brothers Inc., and Optiver US, LLC. ISE is hosting a summer webinar series for investors interested in learning more about ISE FX Options. To sign-up for upcoming webinars and to view an online tutorial, please visit www.ise.com/fx. ISE Background International Securities Exchange Holdings, Inc. (NYSE: ISE), through its subsidiaries, operates a family of innovative securities markets. ISE is founded on the principle that technology and competition create better, more efficient markets for investors and consists of an options exchange, a stock exchange and an alternative markets platform. ISE continually enhances its trading systems and develops new products to provide investors with the best marketplace and investment tools to trade smarter. ISE developed a unique market structure for advanced screen-based trading systems and in May 2000 launched the first fully electronic US options exchange. Currently, ISE operates the world�s largest equity options exchange. ISE offers index options, including a portfolio of proprietary index products, and enhanced market data products for sophisticated investors. ISE FX OptionsSM launched in the second quarter of 2007. ISE Stock Exchange, launched in September 2006, is a completely electronic marketplace and the only dual structure platform that integrates a dark pool, MidPoint MatchSM, with a fully displayed stock market. Midpoint Match is a proprietary, non-displayed market that trades equity securities at the midpoint between the National Best Bid and Offer (NBBO). ISE�s alternative markets business currently consists of an events market trading platform known as Longitude. Longitude�s patented and proprietary technology provides a unique parimutuel structure for derivatives auctions which results in greater trading and pricing flexibility for market participants. For more information about ISE, visit www.ise.com.