Oversold? You mean over bought? Or are you talking just in the last few hours?
If you are talking about the insiders selling then you got to check their history. Sergei, Larry and Eric have been selling their stock from day 1. And all of their stock options are exercised almost as soon as they can. I've never felt good about that but I understand the need to diversify. They did a masterful job dealing with the change to smart phones so I'm in and will be until this thing hits 2000.