ISE to Present at the CIBC World Markets 2nd Annual Mid & Small Cap `Best Ideas' Conference

  
    
  
  
    
      The International Securities Exchange (NYSE: ISE) said today that David 
      Krell, President and Chief Executive Officer, will present at the CIBC 
      World Markets 2nd Annual Mid & Small Cap “Best 
      Ideas” Conference on Tuesday, November 28, 
      2006 at 10:15 a.m. ET. An audio webcast of the presentation will be 
      available on the Investor Relations section of ISE’s 
      website at www.iseoptions.com 
      and will be archived there for 90 days.
    
    
      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 Options™ are slated to 
      launch in 2007.
    
    
      ISE Stock Exchange, launched in September 2006 with strategic partners, 
      includes an innovative MidPoint Match™ 
      platform which offers investors continuous price improvement. It is 
      expected that MidPoint Match will be integrated with a fully-displayed 
      Best Bid Offer market in the fourth quarter of 2006.
    
    
      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.
    
    
      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.
    
  
The International Securities Exchange (NYSE: ISE) said today that
David Krell, President and Chief Executive Officer, will present at
the CIBC World Markets 2nd Annual Mid & Small Cap "Best Ideas"
Conference on Tuesday, November 28, 2006 at 10:15 a.m. ET. An audio
webcast of the presentation will be available on the Investor
Relations section of ISE's website at www.iseoptions.com and will be
archived there for 90 days.

   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 Options(TM) are slated to launch in 2007.

   ISE Stock Exchange, launched in September 2006 with strategic
partners, includes an innovative MidPoint Match(TM) platform which
offers investors continuous price improvement. It is expected that
MidPoint Match will be integrated with a fully-displayed Best Bid
Offer market in the fourth quarter of 2006.

   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.

   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.