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ISE Announces Record Daily Trading Volume

Date 09/11/2007

The International Securities Exchange (NYSE:ISE) announced that its options exchange set a new record daily trading volume of 6,920,132 equity and index options contracts on Thursday, November 8, 2007, surpassing the previous record of 6,532,403 contracts traded on August 16, 2007.

ISE Background
International Securities Exchange Holdings, Inc. (NYSE: ISE), through its subsidiaries, operates a family of innovative securities markets. Founded on the principle that technology and competition create better, more efficient markets for investors, ISE consists of an options exchange, a stock exchange, an alternative markets platform, and a market data business. 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 Options(SM) 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 Match(SM), 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.