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

GNC Holdings, Inc. (symbol: GNC) was one of the biggest winners of the
trading day today (2016-10-19), gaining 10.77%. The number of shares that
changed hands was 8,766,580, or about 5.0 times the average daily volume in
the stock.
The closing price was $21.49, amounting to a market cap of $1,470,000,000,
about -47.38% off the highest price in the last 12 months. The stock has
been trading at a range between $18.92 and $40.84.
GNC is in the Food Chains industry, part of the Consumer Non-Durables
sector. It first went public in 2011.
Looking at its valuation, the stock is now trading at 8.05 times earnings.