ISE Intl Secs Exchange Hldgs

The International Securities Exchange (NYSE:ISE) announced today the launch of the ISE Electronic Trading Index�, which establishes a unique benchmark for a specialty sector within financial services. The stocks comprising the index include electronic brokers, market makers, educational firms, exchanges, and other marketplaces deemed to be most closely associated with electronic trading in the United States. Additionally, ISE has listed cash-settled options based on this new index under the symbol DMA. Timber Hill LLC serves as the Primary Market Maker. The ISE Electronic Trading Index was developed in response to growing interest in the companies that have advanced electronic trading capabilities across all asset classes, and the desire on the part of investors to gain increasingly more targeted exposure to specially segmented sectors. The ISE Electronic Trading Index currently contains 19 companies that derive a substantial portion of their revenues from electronic trading, such as Interactive Brokers (Ticker: IBKR), TD Ameritrade (Ticker:�AMTD) and optionsXpress (Ticker: OXPS). "ISE is pleased to offer investors the ISE Electronic Trading Index to track the performance of this fast-growing segment of the financial services marketplace. We have been at the forefront of electronic trading since our inception, and so it makes sense that ISE established a well-rounded benchmark that encompasses all major participants in this industry," said Bruce D. Goldberg, ISE's Chief Marketing Officer. Additional information about this index, including the methodology guide, component list and weightings, performance metrics and historical data is freely available on ISE�s website, www.iseoptions.com, on the Products Traded / Index Options page. 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 largest U.S. equity options exchange and is among the leading options exchanges in the world. 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 and its options exchange, visit www.iseoptions.com and for more information about ISE Stock Exchange, visit www.isestock.com. Additionally, to learn more about ISE alternative markets technology, visit www.longitude.com.