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 http://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, 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.

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, http://www.nyseeuronext.com/ir or by dial-in beginning approximately two hours following the conclusion of the live call.