UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

PROXY STATEMENT PURSUANT TO SECTION 14(A) OF

THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.      )

Filed by the Registrant ý
Filed by a Party other than the Registrant ¨
Check the appropriate box:
¨		Preliminary Proxy Statement
¨		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
¨		Definitive Proxy Statement
ý		Definitive Additional Materials
¨		Soliciting Material Pursuant to §240.14a-12
NYFIX, INC.
(Name of Registrant as Specified In Its Charter)
(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
Payment of Filing Fee (Check the appropriate box):
ý		No fee required
¨		Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11
	(1)		Title of each class of securities to which transaction applies:
	(2)		Aggregate number of securities to which transaction applies:
	(3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):
	(4)		Proposed maximum aggregate value of transaction:
	(5)		Total fee paid:
¨	Fee paid previously with preliminary materials:
¨	Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.
		(1)	Amount Previously Paid:
		(2)	Form, Schedule or Registration Statement No.:
		(3)	Filing Party:
		(4)	Date Filed:

 NYFIX, INC.

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

FOR THE ANNUAL MEETING OF STOCKHOLDERS

TO BE HELD ON DECEMBER 11, 2007

As a stockholder of NYFIX, Inc., a Delaware corporation (the “Company”), you have the option of voting your shares of Series B Voting Convertible Preferred Stock of the Company (the “Series B Preferred”) by proxy, using the mail.  Your vote by proxy authorizes Steven R. Vigliotti and Brian Bellardo and each of them, with full power of substitution, to vote and otherwise represent all the shares of Series B Preferred of the Company that you are entitled to vote at the 2007 Annual Meeting of Stockholders of the Company to be held on Tuesday, December 11, 2007 at 9:00 a.m. Eastern Time at 100 Wall Street - 26th Floor, New York, New York 10005, or at any adjournment(s) or postponement(s) thereof, with the same effect as if you were present and voting such shares, on the matters and in the manner set forth below and as further described in the accompanying Proxy Statement.

THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS INSTRUCTED BELOW.  IF THIS PROXY IS EXECUTED BUT NO VOTING INSTRUCTIONS ARE GIVEN, THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED FOR PROPOSALS 2 AND 3.

PLEASE MARK, SIGN, DATE AND RETURN THIS CARD PROMPTLY USING THE ENCLOSED RETURN ENVELOPE.

(Continued and to be marked, dated and signed, on the other side)

Address Change/Comments (Mark the corresponding box on the reverse side)

			Please Mark Here for Address Change or Comments See reverse side	¨
		Please mark your votes like this		ý
1. Holders of shares of Series B Preferred do not vote on this proposal for the election of directors.	2. Approval of the NYFIX, Inc. Omnibus Equity Compensation Plan	For  ¨	Against  ¨	Abstain ¨
	3. Ratification of the appointment of Friedman LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2007	For ¨	Against ¨	Abstain ¨
	MARK HERE IF YOU PLAN TO ATTEND THE MEETING			¨
PLEASE MARK, SIGN, DATE AND RETURN THIS CARD PROMPTLY USING THE ENCLOSED RETURN ENVELOPE.

Signature_____________________________	Signature_____________________________	Date_____________________, 2007
Note:  Please sign exactly as name appears hereon and date.  If the shares are held jointly, each holder should sign.  When signing as an attorney, executor, administrator, trustee, guardian, or as an officer signing for a corporation please give full title under signature.