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

Iamgold Corporation Ordinary Sh (symbol: IAG) was one of the worst losers
of the trading day today (2016-12-15), losing -9.83%. The number of shares
that changed hands was 17,173,425, or about 2 times the average daily
volume in the stock.
The closing price was $3.21, amounting to a market cap of $1,450,000,000,
about -45.32% off the highest price in the last 12 months. The stock has
been trading at a range between $1.15 and $5.87.
IAG is in the Precious Metals industry, part of the Basic Industries sector.