News Releases

NEW YORK – May 27, 2009 – NYSE Euronext Inc., today announced that the NYSE Arca Tech 100 Index® will replace the following constituents in the index as a result of its semi-annual rebalancing.  The changes are effective as of market close on May 29, 2009 .

Leaving the Index:

Alcatel-Lucent                                                   (ALU )

Cadence Design Systems Inc                             (CDNS)

Jabil Circuit Inc.                                                (JBL )

Mentor Graphics Corp                                        (MENT )

New constituents added to the Index:
Bristol-Myers Squibb Co.                                    (BMY )

Comtech Telecommunications                             (CMTL )

MEMC Electronic Materials Inc.                            (WFR )

Parametric Technology Corp                               (PMTC )

A link to the Index guidelines:  http://www.nyse.com/pdfs/NYSEArcaTech100IndexGuidelines.pdf

A link to the Index returns & data subscription:  http://www.nyse.com/marketinfo/indexes/pse_resources.shtml

About NYSE Arca Tech 100 Index®

The NYSE Arca Tech Index® has been in existence since 1982, and is commonly referenced as a benchmark for the U.S. tech sector. This price weighted index is comprised of 100 listed and over-the-counter securities.   Companies from different industries that produce or deploy innovative technologies to conduct their business are considered for inclusion. Leading companies are selected from several industries, including computer hardware, software, semiconductors, telecommunications, data storage and processing, electronics and biotechnology. Modeled as a multi-industry technology index, the objective of the NYSE Arca Tech 100 Index is to provide a benchmark for measuring the performance of companies using technology innovation across a broad spectrum of industries.

More information about the index can be found:  www.nyse.com/tech100index

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About NYSE Euronext

NYSE Euronext (NYX) is the world’s most diverse exchange group, offering a broad and growing array of financial products and services in Europe and the United States that include cash equities, futures, options, exchange-traded products, bonds, market data, and commercial technology solutions.  With over 8,000 listed issues globally, NYSE Euronext's equities markets -- the New York Stock Exchange, Euronext, NYSE Arca, and NYSE Amex -- represent nearly 40% of the world's cash equities trading volume, the most liquidity of any global exchange group.  NYSE Euronext also operates NYSE Liffe, the leading European derivatives business and the world’s second largest derivatives business by value of trading.  NYSE Euronext offers comprehensive global commercial technology, connectivity, and market data products and services through its innovative trading solutions unit, NYSE Technologies.  NYSE Euronext is part of the S&P 500 index and the only exchange operator in the S&P 100 index.  For more information, please visit: www.nyx.com.

Cautionary Note Regarding Forward-Looking Statements

This press release may contain forward-looking statements, including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements include, but are not limited to, statements concerning NYSE Euronext’s plans, objectives, expectations and intentions and other statements that are not historical or current facts. Forward-looking statements are based on NYSE Euronext’s current expectations and involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied in such forward-looking statements. Factors that could cause NYSE Euronext’s results to differ materially from current expectations include, but are not limited to: NYSE Euronext’s ability to implement its strategic initiatives, economic, political and market conditions and fluctuations, government and industry regulation, interest rate risk and U.S. and global competition, and other factors detailed in NYSE Euronext’s reference document for 2008 (“document de référence”) filed with the French Autorité des Marchés Financiers (Registered on April 28, 2009 under No. R. 09-031), 2008 Annual Report on Form 10-K and other periodic reports filed with the U.S. Securities and Exchange Commission or the French Autorité des Marchés Financiers. In addition, these statements are based on a number of assumptions that are subject to change. Accordingly, actual results may be materially higher or lower than those projected. The inclusion of such projections herein should not be regarded as a representation by NYSE Euronext that the projections will prove to be correct. This press release speaks only as of this date. NYSE Euronext disclaims any duty to update the information herein.