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

GoPro, Inc. (symbol: GPRO) was one of the worst losers of the trading day
today (2016-01-14), losing -14.58%. The number of shares that changed hands
was 31,577,368, or about 4 times the average daily volume in the stock.
The closing price was $12.48, amounting to a market cap of $1,720,000,000,
about -80.94% off the highest price in the last 12 months. The stock has
been trading at a range between $11.26 and $65.49.
GPRO is in the Industrial Machinery/Components industry, part of the
Miscellaneous sector. It first went public in 2014.
Looking at its valuation, the stock is now trading at 10.24 times earnings.