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

Tronox Limited (symbol: TROX) was one of the biggest winners of the trading
day today (2015-12-23), gaining 20.39%. The number of shares that changed
hands was 1,682,757, or about 1.1 times the average daily volume in the
stock.
The closing price was $4.9, amounting to a market cap of $566,700,000,
about -79.95% off the highest price in the last 12 months. The stock has
been trading at a range between $2.98 and $24.44.
TROX is in the Major Chemicals industry, part of the Basic Industries
sector.