BRUSSELS—EU antitrust regulators on Thursday fined Barclays, Credit Suisse, HSBC, and NatWest 344 million euros ($390 million) for foreign exchange market rigging, closing a key chapter in a high-profile investigation.
UBS avoided a 94 million euro fine by alerting the European Commission to the cartel, which was set up via a chatroom known as “Sterling Lads.”
