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

TerraForm Power, Inc. (symbol: TERP) was one of the worst losers of the
trading day today (2015-11-25), losing -17.67%. The number of shares that
changed hands was 14,518,837, or about 4 times the average daily volume in
the stock.
The closing price was $7.27, amounting to a market cap of $905,840,000,
about -82.96% off the highest price in the last 12 months. The stock has
been trading at a range between $6.73 and $42.66.
TERP is in the Electric Utilities: Central industry, part of the Public
Utilities sector. It first went public in 2014.