David Einhorn grew up in Milwaukee and graduated from Cornell. He learned the hedge fund business from Gary Siegler and Peter Collery, who managed the SC Fundamental Value Fund. David Einhorn is one of the most successful long/short equity hedge fund managers of the past decade. David Einhorn's Greenlight Capital returned 15.9% in 2010, and 21.5% since its inception in 1996. Greenlight Capital's market beta is around 0.5, meaning if they didn't have any stock picking skill, they would have returned about half of the market's return.
David Einhorn initiated positions in four stocks in the second quarter. Greenlight Capital now has about $82 Million in Huntington Ingalls (HII), $76 Million in Marathon Oil (MRO), $60 Million in Aeropostale (ARO), and $34 Million in State Bank Financial (STBZ).
Einhorn also boosted his stakes in Microsoft (read why Einhorn is bullish about Microsoft here) and Seagate (STX).