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

Teck Resources Ltd (symbol: TCK) was one of the biggest winners of the
trading day today (2016-02-17), gaining 20.91%. The number of shares that
changed hands was 15,289,829, or about 2.0 times the average daily volume
in the stock.
The closing price was $6.13, amounting to a market cap of $3,530,000,000,
about -62.62% off the highest price in the last 12 months. The stock has
been trading at a range between $2.56 and $16.4.
TCK is in the Mining & Quarrying of Nonmetallic Minerals (No Fuels)
industry, part of the Basic Industries sector.