CORRECTING and REPLACING ISE Launches New Electronic Trading Index

  
    
  
  
    
      Second graph, second sentence should read: 18 companies (sted 19 
      companies) and Knight Trading (Ticker: NITE) (sted Interactive Brokers 
      (Ticker: IBKR))
    
    
      The corrected release reads:
    
    
      ISE LAUNCHES NEW ELECTRONIC TRADING INDEX
    
    
      Index Options Begin Trading (Symbol: DMA)
    
    
      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 18 
      companies that derive a substantial portion of their revenues from 
      electronic trading, such as Knight Trading (Ticker: NITE), 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.