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

SM Energy Company (symbol: SM) was one of the biggest winners of the
trading day today (2016-03-04), gaining 18.63%. The number of shares that
changed hands was 12,185,751, or about 3.0 times the average daily volume
in the stock.
The closing price was $15.6, amounting to a market cap of $1,060,000,000,
about -74.12% off the highest price in the last 12 months. The stock has
been trading at a range between $6.99 and $60.28.
SM is in the Oil & Gas Production industry, part of the Energy sector.