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

Chesapeake Energy Corporation (symbol: CHK) was one of the biggest winners
of the trading day today (2016-02-22), gaining 19.5%. The number of shares
that changed hands was 33,856,118, or about 1.2 times the average daily
volume in the stock.
The closing price was $2.39, amounting to a market cap of $1,590,000,000,
about -88.08% off the highest price in the last 12 months. The stock has
been trading at a range between $1.5 and $20.05.
CHK is in the Oil & Gas Production industry, part of the Energy sector.