Einhorn has down quarter, warns of new tech bubble By: MarketWatch April 22, 2014 at 14:51 PM EDT David Einhorn’s Greenlight Capital lost money with bets against Keurig Green Mountain and Chipotle Mexican Grill while making money on Micron Technology. Read More >> Related Stocks: Chipotle Mexican Grill Conn's Inc Keurig Green Mountain Micron Technology