NYSE Euronext to Announce Fourth-Quarter 2009 Financial Results and Host Conference Call on Tuesday, February 9, 2010 NYSE Euronext (NYX) will announce earnings for the fourth-quarter 2009 before the market opens on Tuesday, February 9, 2010. A news release will be issued at approximately 2:30 a.m. (New York) / 8:30 a.m. (Paris) and a conference call with remarks by NYSE Euronext senior management will begin at 8:00 a.m. (New York)/ 2:00 p.m. (Paris). A presentation will be referenced during the call and will be available on our website at www.nyseeuronext.com/ir.




A live audio webcast of the conference call will be available on the Investor Relations section of NYSE Euronext's website, www.nyseeuronext.com/ir. Those wishing to listen to the live conference via telephone should dial-in at least 10 minutes before the call begins.





Live Dial-in Information:
United States : 866.578.5788
International: 617.213.8057
Passcode: 50789946

An audio replay of the conference call will be available approximately one hour after the call on the Investor Relations section of NYSE Euronext's website, www.nyseeuronext.com/ir or by dial-in beginning approximately two hours following the conclusion of the live call.

Replay Dial-in Information:
United States : 888.286.8010
International: 617.801.6888
Passcode: 89047921

About NYSE Euronext
NYSE Euronext (NYX) is a leading global operator of financial markets and provider of innovative trading technologies. The company's exchanges in Europe and the United States trade equities, futures, options, fixed-income and exchange-traded products. With more than 8,000 listed issues, NYSE Euronext's equities markets -- the New York Stock Exchange, NYSE Euronext, NYSE Amex and NYSE Alternext as well as NYSE Arca - represent nearly 40 percent of the world's equities trading, 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. The company offers comprehensive commercial technology, connectivity and market data products and services through NYSE Technologies. NYSE Euronext is in the S&P 500 index, and is the only exchange operator in the S&P 100 index and Fortune 500. For more information, please visit:http://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.

Contact: Mirtha Medina

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