0001193125-05-223313 Sample Contracts

·] Shares INTERNATIONAL SECURITIES EXCHANGE, INC. CLASS A COMMON STOCK $.01 PAR VALUE UNDERWRITING AGREEMENT

Underwriting Agreement • November 10th, 2005 • International Securities Exchange, Inc. • Security & commodity brokers, dealers, exchanges & services • New York

• Contract Type
  Underwriting Agreement
• Filed
  November 10th, 2005
• Company
  International Securities Exchange, Inc.
• Industry
  Security & commodity brokers, dealers, exchanges & services
• Jurisdiction
  New York

The undersigned understands that Goldman, Sachs & Co. and UBS Securities LLC propose to enter into an Underwriting Agreement (the “Underwriting Agreement”) with International Securities Exchange, Inc., a Delaware corporation (the “Company”), and the Selling Shareholders named in Schedule I thereto, providing for the public offering (the “Public Offering”) by the several Underwriters named in Schedule II to the Underwriting Agreement (the “Underwriters”), including Goldman, Sachs & Co. and UBS Securities LLC, of shares (the “Shares”) of the Class A Common Stock, $.01 par value, of the Company (the “Common Stock”).