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

Peabody Energy Corporation Comm (symbol: BTU) was one of the worst losers
of the trading day today (2015-09-01), losing -18.52%. The number of shares
that changed hands was 25,614,780, or about 1 times the average daily
volume in the stock.
The closing price was $2.2, amounting to a market cap of $612,160,000,
about -86.2% off the highest price in the last 12 months. The stock has
been trading at a range between $0.99 and $15.94.
BTU is in the Coal Mining industry, part of the Energy sector. It first
went public in 2001.