$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 (2016-04-01), losing -7.04%. The number of shares
that changed hands was 28,672,321, or about 1 times the average daily
volume in the stock.
The closing price was $3.83, amounting to a market cap of $2,500,000,000,
about -77.44% off the highest price in the last 12 months. The stock has
been trading at a range between $1.5 and $16.98.
CHK is in the Oil & Gas Production industry, part of the Energy sector.