UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

MarketAxess Holdings Inc.

140 Broadway, 42^nd Floor
New York, New York 10005

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Table of Contents

Item 5.02 Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

     On February 17, 2005, at a regularly scheduled meeting, the Board of Directors of MarketAxess Holdings Inc. (the “Company”) elected David G. Gomach to serve on the Company’s Board of Directors, effective immediately. Mr. Gomach was also appointed as a member of the Audit Committee of the Company’s Board of Directors.

     There are no arrangements or understandings between Mr. Gomach and any other persons pursuant to which Mr. Gomach was selected as a director of the Company. There were no transactions since the beginning of the Company’s last fiscal year, or any currently proposed transaction, to which the Company or any of its subsidiaries was or is to be a party, in which the amount involved exceeds $60,000 and in which Mr. Gomach had, or will have, a direct or indirect material interest.

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SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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