Organization and Principal Business Activity

9 Months Ended

Sep. 30, 2015

Accounting Policies [Abstract]

Organization and Principal Business Activity

1. Organization and Principal Business Activity

MarketAxess Holdings Inc. (the “Company” or “MarketAxess”) was incorporated in the State of Delaware on April 11, 2000. Through its subsidiaries, the Company operates an electronic trading platform for corporate bonds and other types of fixed-income instruments through which the Company’s institutional investor clients can access liquidity provided by its broker-dealer and other institutional clients. The Company’s multi-dealer trading platform allows its institutional investor clients to simultaneously request competitive, executable bids or offers from multiple broker-dealers, and to execute trades with the broker-dealer of their choice. The Company’s trading platform provides access to global liquidity in U.S. high-grade corporate bonds, emerging markets and high-yield bonds, European bonds, U.S. agency bonds, credit derivatives and other fixed-income securities. The Company also executes certain bond transactions between and among institutional investor and broker-dealer clients on a matched principal basis by serving as counterparty to both the buyer and the seller in trades which then settle through a third-party clearing broker. The Company provides fixed-income market data, analytics and compliance tools that help its clients make trading decisions. The Company also provides trade matching and regulatory transaction reporting services to the securities markets. In addition, the Company provides technology solutions and professional consulting services to fixed-income industry participants.