After Horrendous Investing Run, David Einhorn Exits Billionaire Club (Forbes) For famed hedge fund short-seller David Einhorn, 2018 was a year that should have created a few big wins. After all, a decade after his legendary bet against investment bank Lehman Brothers, global stock markets erupted in chaos early in the year and closed near multiyear lows. Asset bubbles like a cryptocurrency mania Einhorn was tracking popped, and pressure mounted on his longtime foe, Tesla’s billionaire CEO Elon Musk, who was sanctioned by the Securities & Exchange Commission.