$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 (2015-12-04), losing -17.79%. The number of shares that
changed hands was 987,152, or about 7 times the average daily volume in the
stock.
The closing price was $8.05, amounting to a market cap of $2,460,000,000,
about -61.88% off the highest price in the last 12 months. The stock has
been trading at a range between $7.68 and $21.12.
FCEL is in the Industrial Machinery/Components industry, part of the
Miscellaneous sector.