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

First Majestic Silver Corp. Ord (symbol: AG) was one of the worst losers of
the trading day today (2016-11-23), losing -8.28%. The number of shares
that changed hands was 6,170,286, or about 1 times the average daily volume
in the stock.
The closing price was $8.2, amounting to a market cap of $1,350,000,000,
about -57.18% off the highest price in the last 12 months. The stock has
been trading at a range between $2.4 and $19.15.
AG is in the Precious Metals industry, part of the Basic Industries sector.