Credit Suisse has reported a big jump in profits for the third quarter — with strong growth across its wealth management business — weeks after a prominent Swiss activist called for the bank to be broken into three parts.

In its earnings statement for the three months to September 30, Credit Suisse said adjusted pre-tax profits rose 90% year-on-year to 620m Swiss francs ($620m). Profits at its international wealth management business rose 59% to CHF 382m.