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

TerraForm Power, Inc. (symbol: TERP) was one of the biggest winners of the
trading day today (2015-12-09), gaining 24.02%. The number of shares that
changed hands was 16,193,424, or about 3.6 times the average daily volume
in the stock.
The closing price was $10.74, amounting to a market cap of $1,340,000,000,
about -74.82% 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.