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

Sturm, Ruger & Company, Inc. Co (symbol: RGR) was one of the worst losers
of the trading day today (2016-11-10), losing -12.07%. The number of shares
that changed hands was 1,986,563, or about 9 times the average daily volume
in the stock.
The closing price was $48.45, amounting to a market cap of $919,140,000,
about -37.96% off the highest price in the last 12 months. The stock has
been trading at a range between $48.0 and $78.09.
RGR is in the Ordnance And Accessories industry, part of the Capital Goods
sector.
Looking at its valuation, the stock is now trading at 12.31 times earnings.