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

Chesapeake Energy Corporation C (symbol: CHK) was one of the worst losers
of the trading day today (2015-12-03), losing -11.78%. The number of shares
that changed hands was 50,223,612, or about 3 times the average daily
volume in the stock.
The closing price was $4.87, amounting to a market cap of $3,230,000,000,
about -77.34% off the highest price in the last 12 months. The stock has
been trading at a range between $4.69 and $21.49.
CHK is in the Oil & Gas Production industry, part of the Energy sector.