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

McEwen Mining Inc. Common Stock (symbol: MUX) was one of the worst losers
of the trading day today (2016-07-12), losing -6.93%. The number of shares
that changed hands was 5,308,970, or about 1 times the average daily volume
in the stock.
The closing price was $4.43, amounting to a market cap of $1,320,000,000,
about -9.96% off the highest price in the last 12 months. The stock has
been trading at a range between $0.65 and $4.92.
MUX is in the Precious Metals industry, part of the Basic Industries sector.