"It's hard to find ideas that aren't picked over and harder to get real returns and differentiate yourself. We are entering a new environment. The days of big returns are gone."

You may also like:

• 

  David Einhorn
  Hedge fund manager

• 

  David Tepper
  Manager

• 

  Edward Lampert
  Businessman

• 

  John Paulson
  Manager

• 

  Kenneth C. Griffin
  Manager

• 

  Paul Tudor Jones
  Trader

• 

  Ray Dalio
  Businessman

• 

  Ronald Perelman
  Businessman

• 

  Stephen F. Cohen
  Scholar