dont ignore the psychological damage the stock sustained when it could not hold 100. Plenty of anxious longs waiting to sell there, as they know that what was once strong support is now strong resistance
The mms know 90% of the traders think that way so on winners like Bidu and AMZN, they will manipulate and take under key support that would have held without manipulation, that way the resistance that was support will require that same manipulation, usually a pump or spike by the same mm to bust right thru and all the doubters and longs are back. (of course now that obvious move is over, the calls will already have taken off. Calls are the cheapest on Bidu in a over a year, the premiums are way oversold. If you gamble or have a time horizon buy calls asap. Qihu has nothing and no real chance to harm the mighty BIDU, that is a made up fairy tale so some hedge funds can get in Bidu cheaper then they should have. Bidu very well could have a 15 point up day tomorrow.