No market has defied attempts to reconstruct it quite as deftly as foreign exchange (FX). The US$6.6 trillion a day market provides a handsome living for a great many people, despite a succession of embarrassing scandals and the publication by central banks of a global Code of Conduct designed to prevent them.

FX has more than survived the disappearance of 19 national currencies into the euro and is even now drawing crypto-currencies into its orbit. One reason FX has retained its freebooting personality is the fact it is regulated everywhere (because banks are regulated) but nowhere. But the real secret of its continued riches is the continuing indifference of the biggest end-users – asset managers, institutional investors and corporates – to value for money in FX. Dr Jamie Walton, co-founder of Raidne, told Dominic Hobson how he is now using the techniques he mastered as a rates quant to help those end-users monitor and trim FX transaction costs and manage the risks of market manipulation and abuse.

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