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

FuelCell Energy, Inc. (symbol: FCEL) was one of the worst losers of the
trading day today (2015-12-08), losing -14.822%. The number of shares that
changed hands was 1,555,078, or about 8 times the average daily volume in
the stock.
The closing price was $6.695, amounting to a market cap of $2,040,000,000,
about -68.3% off the highest price in the last 12 months. The stock has
been trading at a range between $6.12 and $21.12.
FCEL is in the Industrial Machinery/Components industry, part of the
Miscellaneous sector.