Person Firm 2011 estimate
1. Ray Dalio Bridgewater Associates $3.9 billion
2. Carl Icahn Icahn Capital Management $2.5 billion
3. James Simons Renaissance Technologies $2.1 billion
4. Kenneth Griffin Citadel LLC $700 million
5. Steven Cohen SAC Capital Advisors $585 million
6. Chase Coleman Tiger Global Management $550 million
Source: AR magazine