Looking at the chart, it broke and closed below the key $90 level. It's probably going a little lower at least before it rebounds. The longer they don't reply to the SEC, the more suspicious it looks. There is definitely fear in this name right now.
piper jaffrey, in a note calling yoku a hold, called BIDU the compelling risk/reward choice at today's price
although i do note that BIDU's share of chinese page views and unique visitors fell from 75% in september to a bit above 72% in November and QIHOO is aggressively expanding its internet search staff, so competition could stiffen further
however BIDU growth still robust, chinese mfr'ing inched up last month for first time in ages, chinese premiere further signaling his determination to maintain grwoth etc so china may have bottomed which could signal a brighter future for advertising in the online chinese market and thus a catalyst for BIDU stock price