KEY POINTS
  • Steve Eisman, one of the few investors to successfully bet against subprime mortgage securities during the financial crisis, is betting against Tesla. 
  • The portfolio manager called the company's founder Elon musk a "very smart man" but raised concern about the CEO's ability to follow through on his vision.
  • "He's got execution problems," Eisman says.
Steve Eisman.

Steve Eisman, the investor whose prescient financial crisis forecast was featured in "The Big Short," is shorting electric automaker Tesla.

The portfolio manager called the company's founder Elon Musk a "very smart man" but raised concern about the CEO's ability to follow through on lofty ambitions.