Trax is a leading provider of capital market data, trade matching and regulatory reporting services to the global securities market. 

Trax processes on average over 1 billion annual transactions on behalf of its community of over 600 entities including approximately 12 million fixed income transactions. Trax estimates that is processes approximately 65% of all fixed income transactions in Europe as a part of its post-trade service offering.  

Trax operates an Approved Publication Arrangement (APA) and Approved Reporting Mechanism (ARM) for MiFID II trade and transaction reporting in addition to providing support for other regulatory regimes. Trax additionally provides capital market firms with information to assist them in conducting net asset valuations, mark-to-market calculations, fixed-income portfolio mapping, liquidity and volume modelling, as well as reference data population updates. Trax data products include a universe of over 300,000 fixed income securities with unique pricing and volume information on approximately 60,000 individual bonds.

Trax is based in London. The company was originally established in 1985 and began trading as Trax in May 2014. In February 2013 the company - then known as Xtrakter Ltd. - became a wholly owned subsidiary of MarketAxess Holdings Inc., the operator of a leading global fixed income electronic trading platform.

Trax has registered offices in the United Kingdom and is regulated by the FCA as an approved service company (FRN 491843).