The recovery of the economy from the Corona crisis brought the US bank JP Morgan Chase a surprisingly high profit in the summer.
The institute released billions in provisions for impaired loans in the third quarter.
As a result, the surplus jumped by almost a quarter to 11.7 billion US dollars (10.1 billion euros) compared to the same period last year, as JP Morgan announced in New York on Wednesday.
The income from the consulting business of the corporate and investment bank jumped 52 percent.
Bank boss Jamie Dimon justified this with an increase in takeover activity and strong performance of his house in the business with IPOs.
A positive tax effect also drove the result up.
Analysts had only expected a slight increase in profits on average.
Dimon spoke of good economic growth - despite the delta variant of the coronavirus and the problems with global supply chains.
Because of the improved outlook, the bank reduced its provision for possible loan losses by around $ 1.5 billion.
Before the New York Stock Exchange opened, JP Morgan's stock rose 0.6 percent.
Investors eagerly await reports from other US banks this week.
Bank of America, Citigroup, Goldman Sachs and Morgan Stanley will also publish their third quarter figures in the following days.