"If I'm here for four more years and maybe two more or three, executive chair or chairman, that's a long time," Dimon said.

The largest US lender also said it might earn more from interest payments this year despite decline in the second quarter on Monday.

"Most important about the future of JPMorgan Chase's future is the discipline and culture in place," Chairman and CEO Jamie Dimon said on Monday at the company's Investor Day event when asked about succession.