Several banks, including Barclays, Citi and Royal Bank of Scotland, have banned the use of most group chat rooms in moves that highlight how global probes into alleged benchmark manipulations are driving a radical reform of trading floors.
Investigations into the Libor interbank lending rate manipulation scandal prompted RBS sometime last year to ban unmonitored chat rooms where traders used to discuss market topics with rivals, two people familiar with those measures said.
“The bank clamped down on this big time. I think we were even going slightly overboard on this,” one senior banker said.
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