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

GoPro, Inc. (symbol: GPRO) was one of the biggest winners of the trading
day today (2016-09-23), gaining 6.85%. The number of shares that changed
hands was 20,148,758, or about 2.5 times the average daily volume in the
stock.
The closing price was $17.15, amounting to a market cap of $2,390,000,000,
about -51.0% off the highest price in the last 12 months. The stock has
been trading at a range between $8.62 and $35.0.
GPRO is in the Industrial Machinery/Components industry, part of the
Miscellaneous sector. It first went public in 2014.