A former Citigroup Inc. trader is among three people held in the first U.K. arrests as part of global probes into tampering with the London interbank offered rate, according to two people familiar with the matter.
Thomas Hayes, a former trader at UBS AG and Citigroup, was arrested by the Serious Fraud Office and City of London Police today, said the people, who asked not to be identified citing the continuing investigation. The other two men arrested worked at brokerage firm RP Martin Holdings Ltd., according to one of the people and a third person familiar with the investigation, who also requested anonymity.
Libor, a benchmark for more than $300 trillion of financial products worldwide, is derived from a survey of banks conducted each day on behalf of the British Bankers’ Association in London. The rates help determine borrowing costs for everything from mortgages to student loans.