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

Freeport-McMoRan, Inc. Common S (symbol: FCX) was one of the worst losers
of the trading day today (2016-01-22), losing -9.01%. The number of shares
that changed hands was 108,769,412, or about 2 times the average daily
volume in the stock.
The closing price was $3.94, amounting to a market cap of $4,550,000,000,
about -83.56% off the highest price in the last 12 months. The stock has
been trading at a range between $3.52 and $23.97.
FCX is in the Precious Metals industry, part of the Basic Industries sector.