Joseph S. Rizzello Elected Chairman Of NSX Holdings - New Board Members Announced

National Stock Exchange (NSX^SM) today announced that the Board of Directors of NSX Holdings, Inc., the for-profit holding company resulting from NSX's recent demutualization, has elected Joseph S. Rizzello as its Chairman effective immediately.

Mr. Rizzello has served as Special Adviser to the NSX CEO and Board of Directors since September 2004, immediately following his service as a Director on NSX's Board from January 2002 to September 2004 and a member of NSX's Executive Committee during that period. As Special Adviser, he has been instrumental in the development of NSX's new business strategy.

"A 35-year veteran of the securities industry and one of the chief architects of NSX's new business plan, Joseph will now play an integral role in the plan's implementation," said NSX CEO and President David Colker. "His vision and depth of industry knowledge make him the ideal candidate to lead NSX Holdings at this time of major transformation at NSX and across the securities industry."

Prior to his appointment as Special Adviser to NSX, Mr. Rizzello was Managing Director of Pershing LLC, President of Pershing Trading Company and a member of Pershing's Executive Committee. Before joining Pershing, he was a Principal at Vanguard Brokerage Services (VBS). Earlier in his career, he served as Executive Vice President of Marketing, Business and New Product Development at the Philadelphia Stock Exchange, as well as President of its futures subsidiary, the Philadelphia Board of Trade.

NSX recently announced the September 5 closing of an investment transaction in which Bear Stearns, Bloomberg Tradebook, Citigroup Corporate and Investment Banking, Credit Suisse, Knight Capital Group and Merrill Lynch each separately acquired a minority equity stake in NSX Holdings. The centerpiece of NSX's new business plan is its new state-of-the-art technology platform - NSX BLADE^SM and NASD/NSX Trade Reporting Facility. The new platform, designed to meet the needs of algorithmic traders, ECNs, agency brokers and OTC market makers, is expected to be launched in the near future.

The following are the directors of NSX Holdings, Inc.:
Joseph S. Rizzello, Chairman, NSX Holdings, Inc.
James M. Anderson, President and CEO, Cincinnati Children's Hospital
David Colker, CEO and President, National Stock Exchange, Inc.
Bruce S. Garland, Principal, Bloomberg Tradebook LLC
Steven J. Keltz, Director and Counsel, Citigroup Corporate and Investment Banking
Peter B. Madoff, Senior Managing Director, Bernard L. Madoff Investment Securities LLC
Jon McConaughy, Managing Director, Credit Suisse First Boston
Aldo Parcesepe, Senior Managing Director, Bear, Stearns & Co. Inc.
James P. Smyth, Senior Managing Director, Knight Capital Group, Inc.
Jarrod S. Yuster, Managing Director, Merrill Lynch & Co., Inc.

The following are the directors of National Stock Exchange, Inc.:
(* New Directors on Exchange Board)
Donald L. Calvin, Chairman, National Stock Exchange, Inc.;
Chairman, International Business Enterprises
James M. Anderson, President and CEO, Cincinnati Children's Hospital
Mary L. Bender, Securities Industry Consultant
Michael Boland, Partner, Johnson, Madigan, Peck, Boland & Stewart
David Colker, CEO and President, National Stock Exchange, Inc.
Mark F. Duffy, CBOE Director, Managing Member, Cornerstone Trading, LLC
*Steven J. Keltz, Director and Counsel, Citigroup Corporate and Investment Banking
Peter B. Madoff, Senior Managing Director, Bernard L. Madoff Investment Securities LLC
Jon McConaughy, Managing Director, Credit Suisse First Boston
*Aldo Parcesepe, Senior Managing Director, Bear, Stearns & Co. Inc.
Glen Shipway, Securities Industry Consultant
*James P. Smyth, Senior Managing Director, Knight Capital Group, Inc.
*Jarrod S. Yuster, Managing Director, Merrill Lynch & Co., Inc.

NSX, the nation's first all-electronic stock exchange, is the low-cost provider of exchange services. Having replaced its physical trading floor with a completely automated market in 1980, NSX has been a model of exchange efficiency and a driving force for change in the world of securities exchanges. Founded in 1885, NSX continues to lead the way in exchange innovation. For more information, visit NSX's website at www.nsx.com.