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

Silver Wheaton Corp Common Shar (symbol: SLW) was one of the worst losers
of the trading day today (2016-12-15), losing -8.78%. The number of shares
that changed hands was 14,055,060, or about 3 times the average daily
volume in the stock.
The closing price was $17.04, amounting to a market cap of $7,520,000,000,
about -45.65% off the highest price in the last 12 months. The stock has
been trading at a range between $10.04 and $31.35.
SLW is in the Precious Metals industry, part of the Basic Industries sector.
Looking at its valuation, the stock is now trading at 532.5 times earnings.