Well that didn't take long. Just over two months after Einhorn's Greenlight bought a stake in Yahoo, he has now dumped the full amount. From his just issued letter to clients: "The Partnership bought Yahoo! (YHOO) earlier this year based on a sum of the parts analysis, which included putting substantial value on its Chinese assets. Shortly after the purchase, the value of the Chinese assets came into doubt as the CEO of the Chinese unit hived-off a valuable subsidiary into a corporation that he personally controls. From there, the finger pointing started in every direction. This wasn't what we signed up for. We exited with a modest loss." Well, the whole was less than the sum of the parts in this case. Oops. For this another modest gains and losses, but mostly losses explaining why the fund is down 5% YTD, read the full letter below.