ISE to Roll Out Additional Listings on MidPoint Match(TM)

  
    
  
  
    
      The International Securities Exchange (NYSE: ISE) today announced that 
      as of Friday, September 29, it will trade all of the companies that 
      comprise the S&P 500 on its recently launched MidPoint MatchTM 
      platform. The ISE Stock Exchange added 280 new names to MidPoint 
      Match last week and will continue its rollout by listing an additional 
      330 stocks this week. In addition to the companies in the S&P 500, 
      select ETFs, several lower-priced stocks, and ISE will also be traded.
    
    
      “Listing the stocks of the S&P 500 represents 
      a major milestone in our ongoing rollout of MidPoint Match,” 
      stated Andrew Brenner, head of the ISE Stock Exchange. Brenner 
      continued, “The companies that comprise the 
      S&P 500 account for approximately 76% of the market capitalization of 
      the U.S. equity market, and we are excited to provide investors with the 
      ability to trade these names on the ISE Stock Exchange and receive the 
      continuous price improvement that our Exchange offers.”
    
    
      MidPoint Match, the first product to debut on the ISE Stock Exchange, is 
      a continuous, instantaneous, fully-automated and anonymous platform that 
      executes orders at the midpoint price of the National Best Bid and Offer 
      (NBBO) throughout the trading day. Trading on MidPoint Match began in 
      early September. The rollout process will continue over the coming 
      months, leading up to the launch of an integrated displayed market 
      offering in the fourth quarter, subject to regulatory approval.
    
    
      Additional information is available at www.isestock.com.
    
    
      ISE Background
    
    
      The International Securities Exchange, LLC (ISE) is a wholly-owned 
      subsidiary of International Securities Exchange Holdings, Inc. (ISE 
      Holdings). ISE operates an innovative securities market, founded on the 
      principle that technology and competition create better, more efficient 
      markets for investors. ISE is the largest equity options exchange and is 
      among the leading options exchanges in the world. ISE developed a unique 
      market structure for advanced screen-based trading systems and in May 
      2000 launched the first fully electronic US options exchange. The ISE 
      Stock Exchange launched in September 2006 with strategic partners and 
      offers an innovative MidPoint Match platform, which will be followed by 
      a fully integrated displayed Best Bid Offer market in the fourth 
      quarter. ISE Holdings is also a majority owner of Longitude LLC, which 
      operates an innovative platform for events markets trading. 
      Additionally, ISE offers enhanced market data products for sophisticated 
      investors.
    
    
      ISE continually enhances its trading systems and develops new products, 
      including index options and market data, to provide investors with the 
      best marketplace and investment tools to trade smarter. For more 
      information about ISE, its options products and its technology, visit www.iseoptions.com, 
      for more information about the ISE Stock Exchange, visit www.isestock.com 
      and for more information about Longitude, visit www.longitude.com.
    
    
      Forward Looking Statements
    
    
      Certain matters discussed in this press release are “forward 
      looking statements” intended to qualify for 
      the safe harbor from liability established by the Private Securities 
      Litigation Reform Act of 1995. These statements relate to future events 
      or our future financial performance, and involve known and unknown 
      risks, uncertainties and other factors that may cause our actual 
      results, levels of activity, performance or achievements, to be 
      materially different from those contemplated by the forward looking 
      statements. We undertake no ongoing obligation, other than that imposed 
      by law, to update these statements. Factors that could affect our 
      results, levels of activity, performance or achievements and cause them 
      to materially differ from those contained in the forward looking 
      statements can be found in our filings with the Securities and Exchange 
      Commission, including our annual report on Form 10-K, current reports on 
      Form 8-K and quarterly reports on Form 10-Q, as amended.
    
  
The International Securities Exchange (NYSE: ISE) today announced
that as of Friday, September 29, it will trade all of the companies
that comprise the S&P 500 on its recently launched MidPoint Match(TM)
platform. The ISE Stock Exchange added 280 new names to MidPoint Match
last week and will continue its rollout by listing an additional 330
stocks this week. In addition to the companies in the S&P 500, select
ETFs, several lower-priced stocks, and ISE will also be traded.

   "Listing the stocks of the S&P 500 represents a major milestone in
our ongoing rollout of MidPoint Match," stated Andrew Brenner, head of
the ISE Stock Exchange. Brenner continued, "The companies that
comprise the S&P 500 account for approximately 76% of the market
capitalization of the U.S. equity market, and we are excited to
provide investors with the ability to trade these names on the ISE
Stock Exchange and receive the continuous price improvement that our
Exchange offers."

   MidPoint Match, the first product to debut on the ISE Stock
Exchange, is a continuous, instantaneous, fully-automated and
anonymous platform that executes orders at the midpoint price of the
National Best Bid and Offer (NBBO) throughout the trading day. Trading
on MidPoint Match began in early September. The rollout process will
continue over the coming months, leading up to the launch of an
integrated displayed market offering in the fourth quarter, subject to
regulatory approval.

   Additional information is available at www.isestock.com.

   ISE Background

   The International Securities Exchange, LLC (ISE) is a wholly-owned
subsidiary of International Securities Exchange Holdings, Inc. (ISE
Holdings). ISE operates an innovative securities market, founded on
the principle that technology and competition create better, more
efficient markets for investors. ISE is the largest equity options
exchange and is among the leading options exchanges in the world. ISE
developed a unique market structure for advanced screen-based trading
systems and in May 2000 launched the first fully electronic US options
exchange. The ISE Stock Exchange launched in September 2006 with
strategic partners and offers an innovative MidPoint Match platform,
which will be followed by a fully integrated displayed Best Bid Offer
market in the fourth quarter. ISE Holdings is also a majority owner of
Longitude LLC, which operates an innovative platform for events
markets trading. Additionally, ISE offers enhanced market data
products for sophisticated investors.

   ISE continually enhances its trading systems and develops new
products, including index options and market data, to provide
investors with the best marketplace and investment tools to trade
smarter. For more information about ISE, its options products and its
technology, visit www.iseoptions.com, for more information about the
ISE Stock Exchange, visit www.isestock.com and for more information
about Longitude, visit www.longitude.com.

   Forward Looking Statements

   Certain matters discussed in this press release are "forward
looking statements" intended to qualify for the safe harbor from
liability established by the Private Securities Litigation Reform Act
of 1995. These statements relate to future events or our future
financial performance, and involve known and unknown risks,
uncertainties and other factors that may cause our actual results,
levels of activity, performance or achievements, to be materially
different from those contemplated by the forward looking statements.
We undertake no ongoing obligation, other than that imposed by law, to
update these statements. Factors that could affect our results, levels
of activity, performance or achievements and cause them to materially
differ from those contained in the forward looking statements can be
found in our filings with the Securities and Exchange Commission,
including our annual report on Form 10-K, current reports on Form 8-K
and quarterly reports on Form 10-Q, as amended.