"Our second tech bubble in 15 years," is how David Einhorn - writing in his investor letter - describes the current period. While shorting a number of high-fliers, Einhorn has limited those "dangerous" bets. “What is uncertain is how much further the bubble can expand, and what might pop it."
Greenlight Capital lost 1.5% in Q1, and shorts like Green Mountain and Chipotle haven't panned out. Greenlight Capital RE (GLRE) is off 7.5% YTD.