"We view this as a strategic opportunity to assume greater control of a meaningful portion of our cost base that will allow us to drive improved efficiencies and growth," said NYSE Group President and co-Chief Operating Officer Jerry Putnam, who is also SIAC Chairman and interim CEO. "Following the transaction, the American Stock Exchange will continue to be a customer of SIAC, although we expect them to reduce their usage of SIAC's services as previously disclosed."

"This marks another watershed moment for Amex's march to technological rebirth. We are pleased with the cooperation that NYSE and the SIAC staff showed in helping to complete this transaction," said Neal Wolkoff, Chairman & CEO of Amex. "We look forward to a new and independent technology future for the Amex together with the launch of AEMI, our new state-of-the-art electronic market platform."

About SIAC
The Securities Industry Automation Corporation, known throughout the financial world as SIAC, was founded in 1972 as a subsidiary of the NYSE Group and the American Stock Exchange (AMEX). SIAC runs the computer systems and communications networks that power the two exchanges and disseminate U.S. market data worldwide.

SIAC is responsible for providing the highest quality, most reliable and cost-effective systems to support the current and future business needs of the NYSE Group and AMEX. SIAC's work spans all aspects of technology - from research & development, to software development, programming, communications, operations and facilities management.

SIAC plans, develops, implements and manages a variety of automated information-handling and communications systems. These systems support order processing, trading, market data reporting, trade comparison and surveillance.

Sector, Inc., a SIAC subsidiary, markets technological expertise and facilities to clients in the financial services and other industries. Sector offers a wide range of high value communications, networking and managed services, which include outsourcing, facilities management, e-solutions, enterprise services, network and data distribution services (for further information, see Sector's Web site at www.sectorinc.com

SFTI, SIAC's Secure Financial Transaction Infrastructure, was developed to help the financial services industry substantially improve the resilience of telecommunications connectivity. SFTI will reduce the likelihood of a long-term outage, while making it faster and easier for firms to recover from service disruption. SFTI provides remote access points and guarantees physically and geographically diverse routing. All of SFTI's equipment, connections, power supplies and network links are redundant.

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 $23.1 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. NYSE Arca, Inc. is also an exchange for trading equity options. NYSE Arca's trading platforms provide customers with fast electronic execution and open, direct and anonymous market access.

NYSE Regulation, an independent not-for-profit subsidiary, regulates member organizations through the enforcement of marketplace rules and federal securities laws. NYSE Regulation also ensures that companies listed on the NYSE and NYSE Arca meet their financial and corporate governance listing standards.

For more information on NYSE Group, go to: www.nyse.com. Information contained on our website does not constitute a part of the prospectus relating to the proposed offering.