<SEC-DOCUMENT>0001193125-17-318446-index.html : 20171025
<SEC-HEADER>0001193125-17-318446.hdr.sgml : 20171025
<ACCEPTANCE-DATETIME>20171025070402
ACCESSION NUMBER:		0001193125-17-318446
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20171025
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20171025
DATE AS OF CHANGE:		20171025

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MARKETAXESS HOLDINGS INC
		CENTRAL INDEX KEY:			0001278021
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				522230784
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34091
		FILM NUMBER:		171152051

	BUSINESS ADDRESS:	
		STREET 1:		299 PARK AVENUE, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171
		BUSINESS PHONE:		212-831-6000

	MAIL ADDRESS:	
		STREET 1:		299 PARK AVENUE, 10TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10171

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARKETAXESS HOLDING INC
		DATE OF NAME CHANGE:	20040129
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d440972d8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: d440972d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d440972dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: d440972dex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g440972g63m55.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g440972g63m55.jpg

</DOCUMENT>
</SEC-DOCUMENT>