$AUY is one of biggest winner #stocks today. read more:

Yamana Gold Inc. (symbol: AUY) was one of the biggest winners of the
trading day today (2015-10-20), gaining 10.53%. The number of shares that
changed hands was 13,906,314, or about 1.1 times the average daily volume
in the stock.
The closing price was $2.52, amounting to a market cap of $2,370,000,000,
about -57.0% off the highest price in the last 12 months. The stock has
been trading at a range between $1.42 and $5.86.
AUY is in the Precious Metals industry, part of the Basic Industries sector.