Only a few companies that trade as American Depositary Shares earn S&P's 'buy' rating.
The company ends its 3-year partnership with Top100.cn and exits the music search business overseas.
Challenges, from inside and out, threaten to thwart the world's most watched company.
Stocks slide as US companies continue to indicate caution with their guidance and Moody's signals worries about more debt fallout in Europe.
Shares may push lower as costs rise and earnings growth slows.
The company needed to bring the Mac experience in line with its iPhone and iPad.
If the Chinese search giant's platform takes off, it could drive significant mobile search volume for the company.
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