ISE Intl Secs Exchange Hldgs

The International Securities Exchange (NYSE:ISE) today announced enhancements to PrecISE Trade�, its front-end trading application for broker-dealers to access ISE�s options market. PrecISE now offers Away Market Routing that enables traders to access the entire options market through one workstation. With Away Market Routing, traders are able to directly route options orders to other markets or sweep the entire marketplace for the best quote. PrecISE accepts orders for all options, including orders for non-ISE listed options. This enhancement allows users to select PrecISE as a single application for all their options trading needs. PrecISE also supports the entry of stock-option combination orders, such as buy-write and delta neutral orders, through its easy-to-use interface. ISE began its PrecISE rollout in March 2006. Presently, over ninety firms trade through PrecISE, which is active on over 430 desktops. Developed internally by ISE�s technology team, PrecISE continues to undergo enhancements and upgrades that provide users with greater trading flexibility. For more information on PrecISE, please visit http://www.iseoptions.com/marketplace/precise.asp or send an email to jhightower@iseoptions.com. 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.