Definitely institutional selling due to the volume, but so what. 89% of hedge funds are underperforming the market. They're dumping BIDU to buy GOOG. If BIDU breaks 110 and closes below for at least a day or two, it will likely go down towards 100. That's when you can buy more, but make sure you can hold all the way to October since their earnings will see the shorts bidding up the stock to cover.