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NYSE Euronext To Issue Fourth-Quarter And Full-Year 2007 Financial Results And Conduct Conference Call On February 5, 2008

Date 20/12/2007

NYSE Euronext (NYX) will announce earnings for the fourth quarter and full-year 2007, ending Dec. 31, 2007, before the market opens on Tuesday, Feb. 5, 2008. A news release will be issued at approximately 2:00 a.m. (New York)/8:00 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 live audio webcast of the conference call will be available on the Investor Relations section of NYSE Euronext's website, http://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) 800-8651
International: (617) 614-2704
Passcode: 23825140

Audio replays of the conference call will be available approximately one hour after the call on the Investor Relations section of NYSE Euronext's website, http://www.nyseeuronext.com/ir and 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: 99463005
available 2/5 - 2/12

About NYSE Euronext
NYSE Euronext, a holding company created by the combination of NYSE Group, Inc. and Euronext N.V., commenced trading on April 4, 2007. NYSE Euronext (NYSE Euronext: NYX) operates the world's largest and most liquid exchange group and offers the most diverse array of financial products and services. NYSE Euronext, which brings together six cash equities exchanges in five countries and six derivatives exchanges in six countries, is a world leader for listings, trading in cash equities, equity and interest rate derivatives, bonds and the distribution of market data. Representing a combined $30.3 trillion/EUR 21.3 trillion total market capitalization of listed companies and average daily trading value of approximately $139 billion/EUR 103 billion (as of September 30, 2007), NYSE Euronext seeks to provide the highest standards of market quality and integrity, innovative products and services to investors, issuers, and all users of its markets. NYSE Euronext is part of the S&P 500 and S&P 100 indexes.