Bloomberg Markets' 50 Most Influential

By Bloomberg Markets - 2012-09-05T07:58:26Z

Photograp by Melissa Golden/Redux

Company Symbol % Change
43 of 55

Jamie Dimon

CEO, JPMorgan Chase & Co.

The trade that sank the London Whale cost the bank more than $5.8 billion and undermined its CEO's message on excessive regulation. Still, Dimon, 56, showed he can be contrite, and the company still made $10 billion in the first half of this year.