$CMCM is one of biggest losers #stocks today. read more:

Cheetah Mobile Inc. American De (symbol: CMCM) was one of the worst losers
of the trading day today (2015-08-19), losing -13.17%. The number of shares
that changed hands was 2,546,000, or about 2 times the average daily volume
in the stock.
The closing price was $19.12, amounting to a market cap of $2,600,000,000,
about -47.8% off the highest price in the last 12 months. The stock has
been trading at a range between $14.76 and $36.63.
CMCM is in the Computer Software: Prepackaged Software industry, part of
the Technology sector. It first went public in 2014.
Looking at its valuation, the stock is now trading at 236.05 times earnings.