News Releases

New York and Tokyo, Aug. 28, 2007 – The Tokyo Stock Exchange Group, Inc. (TSE Group) today entered into an agreement with NYSE Euronext, which will advise the TSE Group on several key areas of information technology. Initially, NYSE Euronext engineers will work closely with their counterparts at TSE Group to provide detailed information and recommendations on network management and operation, as well as exchange system capacity and performance management, to assure a stable and state-of-the-art trading environment with optimal message capacity.

The agreement between the exchanges was reached within the framework of the NYSE Euronext/TSE Group strategic alliance. The letter of intent establishing the alliance, signed this January, calls for the two world financial market leaders to jointly develop and explore new opportunities in trading systems and technology, investor and issuer services, investment products, and governance and regulation, and it also sets the stage for a potential capital alliance. The exchanges have established working groups in each of these areas which have been meeting on a regular basis to explore concrete areas for cooperation. The technology consulting agreement announced today represents the first of what the exchanges anticipate will be a series of cooperation measures resulting from this dialogue.

Atsushi Saito, President & CEO, TSE Group, commented: "I am delighted that both exchanges have established further cooperative relationships. We see that, based on this agreement, receiving advice from the NYSE Euronext will enhance our system operations and benefit a variety of market participants."

"We are pleased at the progress made in developing our strategic alliance with the Tokyo Stock Exchange, and we are exploring cooperation in a number of areas that are beneficial to both parties," said John A. Thain, CEO, NYSE Euronext. "The new consulting relationship with the TSE Group further strengthens our partnership and provides the opportunity to share our systems and technological expertise with one of the world’s premier financial markets."

About TSE Group
Tokyo Stock Exchange Group, Inc. is established on August 1, 2007 as a wholly owning parent company of Tokyo Stock Exchange, Inc. (TSE). TSE is one of the leading global exchanges and the largest securities market in the Asia-Pacific region. The TSE is best known for its massive equities market, valued at USD 4.8 trillion as of the end of June 2007. It also boasts the market for Japanese securities derivatives such as TOPIX futures and TOPIX options. Japanese Government Bond (JGB) futures trading, the cornerstone of TSE’s fixed income derivatives market and the benchmark of the Japanese bond market, continues to thrive on investor demand from across the globe.  Beyond its dynamic market, TSE is home to the development and publishing of Japan’s most comprehensive family of indices. TOPIX (Tokyo Stock Price Index), the principal index consisting of all Japanese common stocks listed on the TSE First Section, is widely used as a benchmark for the Japanese stock market.

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 $30.8 trillion/€22.8 trillion total market capitalization of listed companies and average daily trading value of approximately $127.0 billion/€94.0 billion (as of June 29, 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.

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 2006 ("document de référence") filed with the French Autorité des Marchés Financiers (Registered on June 6, 2007 under No. R.07-0089), 2006 Annual Report on Form 10-K, as amended, 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: Mitsuo MIWA, Tokyo Stock Exchange Group, Inc.
Phone: +81-3-3666-1361
Email: Kohou@tse.or.jp