EXHIBIT 1
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JOINT FILING AGREEMENT
THIS JOINT FILING AGREEMENT is entered into as of October 19, 2006, by and
among the parties signatories hereto. The undersigned hereby agree that the
Statement on Schedule 13D with respect to the shares of Common Stock, par value
$0.001 per share, of NYFIX, Inc., a Delaware corporation, is, and any amendment
thereafter signed by each of the undersigned shall be, filed on behalf of each
undersigned pursuant to and in accordance with the provisions of 13d-1(k) under
the Securities Exchange Act of 1934, as amended.
WARBURG PINCUS PRIVATE EQUITY IX, L.P.
By: Warburg Pincus IX, LLC, its General Partner,
By: Warburg Pincus Partners, LLC, its Sole Member,
By: Warburg Pincus & Co., its Managing
Member
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Partner
WARBURG PINCUS IX, LLC
By: Warburg Pincus Partners, LLC, its Sole
Member,
By: Warburg Pincus & Co., its Managing
Member
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Partner
WARBURG PINCUS PARTNERS, LLC
By: Warburg Pincus & Co., its Managing
Member
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Partner
WARBURG PINCUS LLC
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Managing Director
WARBURG PINCUS & CO.
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Partner
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxxxx X. Xxxx
By: Xxxxx X. Xxxxxxx, Attorney-in-Fact
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxxx X. Xxxxx
By: Xxxxx X. Xxxxxxx, Attorney-in-Fact
