ISE Executes Successful Launch of MidPoint Match(TM)

The International Securities Exchange (NYSE: ISE)
announced the successful launch last Friday of MidPoint Match(TM).
During the first full day of trading, the MidPoint Match platform
performed flawlessly, and ISE members reacted positively to the
system's trading structure and execution speed. MidPoint Match, the
first product to debut on the ISE Stock Exchange, LLC, 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.
   David Krell, ISE's President and Chief Executive Officer, said,
"We are extremely pleased with the results of the launch of the ISE
Stock Exchange, and the strong positive feedback we have received from
our members underscores the market demand for the unique MidPoint
Match platform, which offers continuous price improvement. We look
forward to building on this successful first step in the rollout
process to grow the business methodically over the coming months."
   MidPoint Match is a continuous market open to all members of ISE
and broker-dealers who become members of ISE Stock Exchange. Since
MidPoint Match matches and executes all round lot orders, large and
small, the platform has broad appeal for both retail and institutional
order flow. In particular, the product's unique design makes it
well-suited for orders generated from a variety of electronic trading
strategies including algorithms, program trades, and statistical
arbitrage.
   Through its anonymous, exchange-based platform, MidPoint Match
allows traders to eliminate market impact and provides close
integration with their existing order management process through a
highly reliable technology infrastructure. Common stocks and ETFs that
are listed on NYSE, NASDAQ, and Amex are traded.
   "The first day of MidPoint Match trading met the very high
expectations we have established for our technology platform and
market operations support. The entire exchange system functioned
seamlessly. We are now focused on adding to the list of names traded
on MidPoint Match and have established an aggressive schedule for
rolling out new listings leading up to the introduction of the
displayed market," said Andrew Brenner, Managing Director and Head of
ISE Stock Exchange.
   MidPoint Match will be followed by an integrated displayed market
offering in the fourth quarter, subject to regulatory approval. The
displayed market will provide transparency while the blended
displayed/non-displayed structure will increase liquidity and
functionality for traders.
   ISE announced its intent to enter the equities market in April
with the formation of the ISE Stock Exchange, LLC in partnership with
key strategic firms. The strategic partners are leading broker-dealers
and members of the exchange, including Bear Stearns, Citadel
Derivatives Group, Deutsche Bank, a subsidiary of E*TRADE FINANCIAL
Corporation, Interactive Brokers Group LLC, JPMorgan, Knight Capital
Group, Inc., Nomura Securities International, Inc., Sun Trading LLC,
and Van der Moolen.

   ISE Background

   The International Securities Exchange, LLC (ISE) is 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 LLC 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 (BBO) market in the
fourth quarter. ISE is also a majority owner of Longitude LLC, an
innovative platform for events markets trading, and 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 and for more information about
the ISE Stock Exchange LLC, visit www.isestock.com.
   International Securities Exchange, LLC is a wholly-owned
subsidiary of International Securities Exchange Holdings, Inc.

   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.