$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 (2016-02-15), losing -10.67%. The number of shares
that changed hands was 49,579,181, or about 2 times the average daily
volume in the stock.
The closing price was $1.59, amounting to a market cap of $1,050,000,000,
about -92.53% off the highest price in the last 12 months. The stock has
been trading at a range between $1.5 and $21.29.
CHK is in the Oil & Gas Production industry, part of the Energy sector.