XML 17 R1.htm IDEA: XBRL DOCUMENT v3.22.4
Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2022
Feb. 17, 2023
Cover [Abstract]    
Document Type 10-K  
Amendment Flag false  
Document Period End Date Dec. 31, 2022  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus FY  
Trading Symbol MKTX  
Entity Registrant Name MARKETAXESS HOLDINGS INC.  
Entity Central Index Key 0001278021  
Current Fiscal Year End Date --12-31  
Entity Well-known Seasoned Issuer Yes  
Entity Current Reporting Status Yes  
ICFR Auditor Attestation Flag true  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Voluntary Filers No  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   37,608,554
Entity Public Float $ 8.4  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock, $0.003 par value  
Security Exchange Name NASDAQ  
Entity File Number 001-34091  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 52-2230784  
Entity Address, Address Line One 55 Hudson Yards  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10001  
Document Annual Report true  
Document Transition Report false  
City Area Code 212  
Local Phone Number 813-6000  
Documents Incorporated by Reference

Portions of the registrant’s definitive proxy statement for the 2023 Annual Meeting of Stockholders are incorporated by reference into Items 10, 11, 12, 13 and 14 of Part III of this Form 10-K.

  
Auditor Name PricewaterhouseCoopers LLP  
Auditor Location New York, New York  
Auditor Firm ID 238