Credit Suisse chief executive Brady Dougan has told Swiss daily TagesAnzeiger: "As we have done very well in the crisis, we are profiting from the demands of clients for more safety and stability. We really believe that we have very good chances to build up our market share among wealthy and very wealthy private customers."

Mr Dougan said Credit Suisse had been working for five years to make sure it conformed with foreign banking laws, building up its onshore banking business and making sure its offshore businesses are compliant, Reuters reports.

"We are doing everything so that our businesses are compliant. But one can never rule out that sometime, perhaps, an isolated case with problems emerges," he is quoted as having said.