CEO, Asset Management
JP Morgan Chase
2011 rank: 24
J.P. Morgan lost nearly $6 billion (and counting) on bad bets by the ìLondon Whale,î but Erdoes's division made money by taking the other side of the trades. Revenue for her
business climbed 6%, to $9.5 billion, last year, and Erdoes's assets grew to $2 trillion, a new high.