Euronext N.V.

Board/Management Information • Oct 1, 2009

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NYSE Euronext Names Dominique Cerutti to Succeed Jean-François Théodore as Deputy Chief Executive Officer, Effective Year-end 2009

-- French national, General Manager of IBM Southwest Europe to join leadership team, head global technology/IT, and oversee European business operations --

Amsterdam, Brussels, Lisbon, London, New York, and Paris -- Oct. 1, 2009 -- NYSE Euronext (NYX) announced today the appointment of Dominique Cerutti, 48, as Deputy Chief Executive Officer and Global Head of Technology, effective year-end 2009, pending regulatory approvals. He will also be appointed President of Euronext Paris and Chairman of the Managing Board of Euronext NV. Mr. Cerutti, a French national who currently serves as General Manager of IBM Southwest Europe, will report to Duncan L. Niederauer, Chief Executive Officer, NYSE Euronext. He will succeed Jean-François Théodore, who earlier this year announced his intention to retire at year's end while remaining a director of the company, subject to regulatory approval.

Mr. Cerutti will join the NYSE Euronext's Management Committee, subject to regulatory approval. He will be based in NYSE Euronext's European headquarters in Paris, where he will oversee global technology/IT and will assume responsibility for business operations, customer relations and competitive position in Europe. Mr. Cerutti will join the leadership team in forming and executing NYSE Euronext's strategic plan, seeking new business growth and revenue generating opportunities including acquisitions and strategic partnerships, and developing new products and services.

During his 23-year career at IBM, Mr. Cerutti, as a member of the company's senior leadership team, contributed to the company's strategic direction and transformation and delivered in Europe a number of innovative management initiatives that have been adopted globally. Most recently, Mr. Cerutti has had full profit and loss responsibility in Southern and Western Europe, oversaw the activities of tens of thousands of IBM employees who combine deep business expertise in seventeen industries with premier technology capabilities, and headed IBM's financing arm (IBM Global Financing), the largest IT lender in the geography.

He has led IBM Global Services in Europe, Middle East and Africa, and during his tenure contributed to make IBM the services market leader in Europe, where he had responsibility for a diverse customer base including multinational corporations and the banking and finance sectors as a key area of activity.

"Dominique Cerutti will be instrumental in advancing our strategic vision and business transformation," said Jan-Michiel Hessels, Chairman of the NYSE Euronext Board of Directors. "His commitments to customers, innovation, integrity and excellence make Dominique the right choice to succeed Jean-François, who has extraordinarily well served our company, shareholders as well as the Paris and our other European markets throughout his career."

"Coming from such a well-known, premier and highly respected multinational corporation, Dominique brings exceptional leadership and management skills to NYSE Euronext," Mr. Niederauer said. "An innovator and visionary, Dominique will be an outstanding addition to our leadership team as we address the rapidly changing and increasingly competitive global landscape. His extensive experience in technology and management of a finance unit will prove especially beneficial for our customers, our market infrastructure initiatives, and our evolution as a technology enterprise in financial services. We welcome Dominique to NYSE Euronext."

Mr. Cerutti said, "NYSE Euronext is a globally recognized brand and leader, and I am privileged to be joining an organization that plays such a vital role among investors, issuers and economies throughout the world. As I became familiar with the company's strategy, leadership team and organizational character, I was increasingly drawn to the opportunity to contribute to the growth of NYSE Euronext."

"I am committed deeply to the roles of Paris and Europe as financial centers, and pledge to work closely with customers as well as leaders in business and government to fulfill that promise," Mr. Cerutti added. "I look forward to addressing the challenges ahead and to begin work with my new colleagues. To my friends and colleagues at IBM, I will forever be grateful for your support through the years and am grateful for the opportunity to have contributed to the company's growth, success and unique transformation into a premier globally integrated enterprise.''

Mr. Théodore said, "A new era and great challenges are upon us in a fast-moving industry, and Dominique is especially well suited to assume this important leadership role at NYSE Euronext. His global view, technology acumen, and broad experience will prove beneficial for our company and customers, and for the growth ambitions of Paris and our Europe operations, I look forward to working with Dominique to ensure a smooth and orderly transition. As a director of the company I will continue working for NYSE Euronext's success."

Dominique Cerutti is General Manager of IBM Southwest Europe. In this role he has led all of IBM's business operations, has full P&L responsibility, and ensures risk management, compliance and business controls across Southern and Western Europe IBM business units. The 33,000 IBM employees in Southwest Europe occupy a wide range of activities including deep business expertise in seventeen selected industries--the largest sector being Financial Services as well as technology, software, strategic outsourcing, IT services, and production and service delivery. He has responsibility over IBM's financing arm IGF (IBM Global financing), the largest IT lender in the world and in Southwest with an investment-grade credit rating and a worldwide asset base of (US) \$36 billion.

Prior to this position he has led in Europe Middle East & Africa a broad transformation of IBM's model, operations in sales and delivery, formed shared services as well as developing and piloting for IBM a number of innovative management initiatives that have been adopted globally as a result. He was given this mandate in 2005, contributing actively in the genesis of the new European business units, Southwest and Northeast IBM Europe.

Mr. Cerutti is a member of IBM Chairman and CEO Sam Palmisano's Senior Leadership Team. Previously, he was general manager of IBM's Global Services in Europe, Middle East & Africa (EMEA), based in Paris. In this role, he led tens of thousands of IBM services professionals and led the transformation of IBM's services business in the region, establishing IBM as the services market leader in Europe.

Prior to that role, in 2000, Mr. Cerutti was general manager of IBM Global Services, West region (France, Belgium and Luxembourg). From December 1998 to October 1999, he was appointed executive assistant at IBM's New York headquarters to former IBM Chairman and CEO Louis V. Gerstner. Mr. Cerutti joined IBM in 1986, and has held responsibilities successively in sales engineering, sales management, with his first senior European management position in 1996 as the director of Personal Systems Group, West Region.

Before joining IBM, Mr. Cerutti spent two years with Bouygues, a French civil engineering company, in Saudi Arabia.

He is a regular speaker on such topics as the globally integrated enterprise, innovation and business advantage, excellence in sales leadership, diversity as a business differentiator.

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 in 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, Euronext, NYSE Arca and NYSE Amex -- 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 secondlargest 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: 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 here.