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NYSE Euronext Names John K. Halvey General Counsel And Group Executive Vice President

Date 21/02/2008

NYSE Euronext (NYX) today appointed John K. Halvey to the position of General Counsel and Group Executive Vice President. Mr. Halvey, who will join NYSE Euronext in early March, will be a member of the company's Management Committee and will be responsible for all NYSE Euronext legal activities, including the Office of the Corporate Secretary and Global Risk and Audit Services, but excluding NYSE Regulation. Mr. Halvey, most recently a corporate partner in the New York office of the international law firm of Milbank, Tweed, Hadley & McCloy, will report to Duncan L. Niederauer, Chief Executive Officer. He will replace Rachel F. Robbins, who has decided to leave the company.

Mr. Halvey, who joined Milbank Tweed Hadley & McCloy in 1986, is regarded as one of America's leading corporate technology and intellectual property attorneys. He has extensive experience with a wide variety of international corporate transactions including information technology and business process related transactions as well as private equity and joint venture transactions. Mr. Halvey has represented many of the world's largest corporations and has authored several books and numerous articles based on his professional experience.

"My colleagues and I welcome John to NYSE Euronext and look forward to working with him," Mr. Niederauer said. "John is an exceptional professional whose broad experience in corporate, technology and transaction law will contribute greatly to our strategic objectives and global growth.

"I want to thank Rachel for her many contributions as a member of our senior management team, including her work on the NYSE-Euronext merger, our international corporate governance framework, and the integration of our global legal group," Mr. Niederauer continued. "On behalf of everyone at NYSE Euronext, I wish Rachel well in her future endeavors."

"I am proud of what we have accomplished during my time at NYSE Euronext," Ms. Robbins said. "We transformed our business and created a global enterprise. We have a truly international governance process and a world-class legal team that shares a common vision. I want to thank our board of directors, my management colleagues and staff, and the entire NYSE Euronext family for this truly exceptional experience."

About John K. Halvey

John K. Halvey has been a corporate partner in the New York office of the international law firm of Milbank, Tweed, Hadley & McCloy, LLP and was the founder of the Global Technology and Strategic Sourcing Group.

Mr. Halvey has practiced in all areas of corporate, technology and intellectual property law, with particular emphasis on information technology and business process related transactions and private equity transactions involving technology companies. Mr. Halvey has represented companies in many of the largest international corporate technology, telecommunications and business process transactions.

His work in these areas has been the subject of articles in Forbes, Information Week, Computer World, CIO Magazine, The Daily Deal and Venture Capital Journal. Mr. Halvey has for many years been ranked by Chambers and Partners as one of the world's leading IT outsourcing lawyers and was ranked a "Star Performer' in the outsourcing industry in 2005, 2006 and 2007. In 2006, Mr. Halvey received the Chambers Shield of Excellence as the Outsourcing Attorney of the Year and as the HR Outsourcing Attorney of the Year by the HROA. He is also listed in The Best Lawyers in America.

In 1995, Crain's named Mr. Halvey on its list of the 40 most successful people under 40 in New York City. Mr. Halvey has written numerous articles for publication and has authored four books: Business Process Outsourcing Transactions: Process, Strategies and Contracts; Information Technology Outsourcing Transactions: Process, Strategies and Contracts; Data Processing Contracts; and Computer Law and Related Transactions.

Mr. Halvey is a magna cum laude graduate of Tufts University, Emory University School of Business and Emory University School of Law, where he was an executive editor of the Law Review.

About NYSE Euronext
NYSE Euronext (NYX) operates the world's leading and most liquid exchange group, and seeks to provide the highest levels of quality, customer choice and innovation. Its family of exchanges, located in six countries, include the New York Stock Exchange, the world's largest cash equities market; Euronext, the Eurozone's largest cash equities market; Liffe, Europe's leading derivatives exchange by value of trading; and NYSE Arca Options, one of the fastest growing U.S. options trading platforms. NYSE Euronext offers a diverse array of financial products and services for issuers, investors and financial institutions in cash equities, options and derivatives, ETFs, bonds, market data, and commercial technology solutions. NYSE Euronext's nearly 4,000 listed companies represent a combined $30.5 trillion/EUR 20.9 trillion in total global market capitalization (as of Dec. 31, 2007), more than four times that of any other exchange group. NYSE Euronext's equity exchanges transact an average daily trading value of approximately $141 billion/EUR 103 billion (as of Dec. 31, 2007), which represents more than one-third of the world's cash equities trading. NYSE Euronext is part of the S&P 500 index and the only exchange operator in the S&P 100 index. For more information about NYSE Euronext, please visit www.nyx.com.