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

VALE S.A. American Depositary (symbol: VALE) was one of the worst losers
of the trading day today (2016-12-19), losing -5.51%. The number of shares
that changed hands was 37,408,726, or about 1 times the average daily
volume in the stock.
The closing price was $7.72, amounting to a market cap of $39,780,000,000,
about -17.34% off the highest price in the last 12 months. The stock has
been trading at a range between $2.13 and $9.34.
VALE is in the Precious Metals industry, part of the Basic Industries
sector.