$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 (2015-08-25), losing -8.77%. The number of shares
that changed hands was 23,777,243, or about 1 times the average daily
volume in the stock.
The closing price was $6.03, amounting to a market cap of $4,000,000,000,
about -77.86% off the highest price in the last 12 months. The stock has
been trading at a range between $6.01 and $27.24.
CHK is in the Oil & Gas Production industry, part of the Energy sector.