$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 (2016-07-22), gaining 8.45%. The number of shares
that changed hands was 65,407,222, or about 1.8 times the average daily
volume in the stock.
The closing price was $5.39, amounting to a market cap of $3,630,000,000,
about -43.56% off the highest price in the last 12 months. The stock has
been trading at a range between $1.5 and $9.55.
CHK is in the Oil & Gas Production industry, part of the Energy sector.