David Einhorn
David Einhorn is the founder and manager of the activist hedge fund Greenlight Capital. Greenlight has $4 billion in assets and boasts annualized returns of 27% going back 10 years. Einhorn has been quoted as saying, "We take the traditional value investor's process and just flip it around a little bit. The traditional value investor asks 'Is this cheap?' and then 'Why is it cheap?' We start by identifying a reason something might be mispriced, and then if we find a reason why something is likely mispriced, then we make a determination whether it's cheap." In addition, Einhorn finished eighteenth in the World Series of Poker in 2006.
Einhorn made headlines in spring-2008 related to his short sale on Lehman Brothers (NYSE: LEH). Einhorn questioned the level of the investment bank's write-downs related to the credit crunch.