Mizuho Financial Group, Inc. Joins the NYSE Group, Inc. as the Third Largest Japanese Company by Market Cap

Today, NYSE Group, Inc. (NYSE: NYX) welcomed its 19th Japanese listed company when Mizuho Financial Group, one of the largest financial institutions in the world, joined the world’s leading and largest equities market. Mizuho Financial Group, Inc. (NYSE: MFG) is the third-largest NYSE-listed Japanese company by market cap with a total global market capitalization of $92 billion. "The listing of Mizuho’s ADRs on the NYSE is clear evidence of a new era for Mizuho Financial Group and its return to the world stage,” said Mizuho Financial Group CEO Terunobu Maeda. "It is also a symbol of the revival of the Japanese banking industry, following the long and difficult period of consolidation and reform. Through the listing, Mizuho aims to further strengthen its internal controls in line with Sarbanes-Oxley compliance requirements and to improve corporate disclosure. Mizuho also hopes to diversify its global investor base as it gains and strengthens investor confidence.” "We welcome Mizuho Financial Group, Inc. to our family of listed companies,” said NYSE Group, Inc. CEO John A. Thain. "It is fitting for Mizuho Financial Group, one of the largest financial institutions in the world, to take its place among the world’s leading companies. We look forward to providing the company and its shareholders with the highest levels of market quality and services.” To celebrate this special occasion, Mizuho Financial Group, Inc. CEO Terunobu Maeda rang The Opening Bell and participated in media activities throughout the morning. About Mizuho Financial Group, Inc. Mizuho Financial Group is one of the largest financial institutions in the world, offering a broad range of financial services including banking, securities, trust and asset management services. The group has over 45,000 staff working in 764 offices around the world, and total assets of over $1.2 trillion (as of March 2006). The company has a market capitalization over $92 billion. The group was created through the establishment of a holding company of its three predecessor banks, The Dai-Ichi Kangyo Bank, The Fuji Bank and The Industrial Bank of Japan. Under the Mizuho Financial Group umbrella, core companies include Mizuho Bank and Mizuho Corporate Bank. Mizuho Bank, the retail-oriented banking subsidiary, has approximately 26 million individual customer accounts and lends to approximately 100,000 small and medium-sized enterprises, or SMEs, and middle-market corporations. Mizuho Corporate Bank, the wholesale banking subsidiary, has business relationships with approximately 70% of all companies listed on Japanese stock exchanges. (Source: Mizuho Financial Group, Inc.) About NYSE Group, Inc. NYSE Group, Inc. (NYSE:NYX) operates two securities exchanges: the New York Stock Exchange (the "NYSE”) and NYSE Arca, Inc. (formerly known as the Archipelago Exchange, or ArcaEx®, and the Pacific Exchange). NYSE Group is a leading provider of securities listing, trading and market data products and services. In the third quarter of 2006, on an average trading day, 2.2 billion shares, valued at $80.1 billion, were traded on the exchanges of the NYSE Group. The NYSE is the world’s largest and most liquid cash equities exchange. The NYSE provides a reliable, orderly, liquid and efficient marketplace where investors buy and sell listed companies’ common stock and other securities. On September 30, 2006, the operating companies listed on the NYSE represented a total global market capitalization of $23.0 trillion. NYSE Arca operates NYSE Arca, Inc., the first open, all-electronic stock exchange in the United States, and has a leading position in trading exchange-traded funds and exchange-listed securities. 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