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

Range Resources Corporation (symbol: RRC) was one of the biggest winners of
the trading day today (2016-01-21), gaining 18.37%. The number of shares
that changed hands was 11,831,896, or about 1.9 times the average daily
volume in the stock.
The closing price was $26.03, amounting to a market cap of $4,320,000,000,
about -60.28% off the highest price in the last 12 months. The stock has
been trading at a range between $19.21 and $65.53.
RRC is in the Oil & Gas Production industry, part of the Energy sector.