{"ein":"522230784","kind":"company","verification":"filing-verified","name":"MARKETAXESS HOLDINGS INC","tickers":["MKTX"],"exchanges":["Nasdaq"],"sicDescription":"Security Brokers, Dealers & Flotation Companies","city":"NEW YORK","state":"NY","stateOfIncorporation":"","cik":"0001278021","sourceName":"SEC EDGAR company submissions record","sourceUrl":"https://data.sec.gov/submissions/CIK0001278021.json","lastChecked":"2026-07-05"}