- Amended Statement of Ownership (SC 13G/A)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

(Amendment No. 1) 1

NYFIX, Inc.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

670712108

(CUSIP Number)

August 27, 2009

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

_______________

1 The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes ).

CUSIP NO. 670712108

1	NAME OF REPORTING PERSON Raging Capital Fund, LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER - 0 -
	6	SHARED VOTING POWER - 0 -
	7	SOLE DISPOSITIVE POWER - 0 -
	8	SHARED DISPOSITIVE POWER - 0 -
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 -
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES		¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0%
12	TYPE OF REPORTING PERSON PN

CUSIP NO. 670712108

1	NAME OF REPORTING PERSON Raging Capital Fund (QP), LP
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER - 0 -
	6	SHARED VOTING POWER - 0 -
	7	SOLE DISPOSITIVE POWER - 0 -
	8	SHARED DISPOSITIVE POWER - 0 -
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 -
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES		¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0%
12	TYPE OF REPORTING PERSON PN

CUSIP NO. 670712108

1	NAME OF REPORTING PERSON Raging Capital Management, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER - 0 -
	6	SHARED VOTING POWER - 0 -
	7	SOLE DISPOSITIVE POWER - 0 -
	8	SHARED DISPOSITIVE POWER - 0 -
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 -
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES		¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0%
12	TYPE OF REPORTING PERSON OO

CUSIP NO. 670712108

1	NAME OF REPORTING PERSON William C. Martin
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP		(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION USA
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER - 0 -
	6	SHARED VOTING POWER - 0 -
	7	SOLE DISPOSITIVE POWER - 0 -
	8	SHARED DISPOSITIVE POWER - 0 -
9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON - 0 -
10	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES		¨
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0%
12	TYPE OF REPORTING PERSON IN

CUSIP NO. 670712108

Item 1(a).

Name of Issuer:

NYFIX, Inc.

Item 1(b).

Address of Issuer’s Principal Executive Offices:

100 Wall Street, New York, New York 10005

Item 2(a).

Name of Person Filing:

This statement is filed by Raging Capital Fund, LP, a Delaware limited partnership (“Raging Capital Fund”), Raging Capital Fund (QP), LP, a Delaware limited partnership (“Raging Capital Fund QP” and together with Raging Capital Fund, the “Raging Funds”), Raging Capital Management, LLC, a Delaware limited liability company (“Raging Capital”), and William C. Martin (“Mr. Martin”). Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.”

Item 2(b).

Address of Principal Business Office or, if none, Residence:

The principal business address of each of the Reporting Persons is 254 Witherspoon Street, Princeton, New Jersey 08542.

Item 2(c).

Citizenship:

The Raging Funds and Raging Capital are organized under the laws of the State of Delaware. Mr. Martin is a citizen of the United States of America.

Item 2(d).

Title of Class of Securities:

Common Stock, par value $0.001 per share (the “Shares”).

Item 2(e).

CUSIP Number:

670712108

Item 3.

If this statement is filed pursuant to Section 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

/X/ Not Applicable

(a)

/ /

Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o).

(b)

/ /

Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)

/ /

Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)

/ /

Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e)

/ /

Investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E).

CUSIP NO. 670712108

(f)

/ /

Employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F).

(g)

/ /

Parent holding company or control person in accordance with Section 240.13d-1(b)(1)(ii)(G).

(h)

/ /

Savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).

(i)

/ /

Church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act (15 U.S.C. 80a-3).

(j)

/ /

Non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J).

(k)

/ /

Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

Item 4.

Ownership.

As of the close of business on August 27, 2009, the Reporting Persons did not own any Shares.

Item 5.

Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [X].

Item 6.

Ownership of More than Five Percent on Behalf of Another Person.

Not Applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable.

Item 8.

Identification and Classification of Members of the Group.

See Exhibit 99.1 (previously filed).

Item 9.

Notice of Dissolution of Group.

Not Applicable.

Item 10.

Certifications.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

CUSIP NO. 670712108

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: August 31, 2009

	Raging Capital Fund, LP

	By:	Raging Capital Management, LLC General Partner

	By:		/s/ William C. Martin
			Name:	William C. Martin
			Title:	Managing Member