EDGAR Filing Documents for 0001193125-12-296221

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405] [amend]

SEC Accession No. 0001193125-12-296221

Filing Date

2012-07-06

Accepted

2012-07-06 15:50:13

Documents

Period of Report

2011-12-31

Filing Date Changed

2012-07-06

Interactive Data

Document Format Files

Seq	Description	Document	Type	Size
1	FORM 10-K AMENDMENT NO. 1	d356610d10ka.htm	10-K/A	24286
	Complete submission text file	0001193125-12-296221.txt		6661553

Data Files

Seq	Description	Document	Type	Size
2	XBRL INSTANCE DOCUMENT	mktx-20111231.xml	EX-101.INS	1230641
3	XBRL TAXONOMY EXTENSION SCHEMA	mktx-20111231.xsd	EX-101.SCH	56683
4	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE	mktx-20111231_cal.xml	EX-101.CAL	79753
5	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE	mktx-20111231_def.xml	EX-101.DEF	190512
6	XBRL TAXONOMY EXTENSION LABEL LINKBASE	mktx-20111231_lab.xml	EX-101.LAB	491938
7	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE	mktx-20111231_pre.xml	EX-101.PRE	360528

Mailing Address 140 BROADWAY 42ND FLOOR NEW YORK NY 10005

Business Address 140 BROADWAY 42ND FLOOR NEW YORK NY 10005 212-831-6000

MARKETAXESS HOLDINGS INC (Filer) CIK: 0001278021 (see all company filings)

IRS No.: 522230784 | Fiscal Year End: 1231
Type: 10-K/A | Act: 34 | File No.: 001-34091 | Film No.: 12950644
SIC: 6211 Security Brokers, Dealers & Flotation Companies
Assistant Director 12