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

Talen Energy Corporation Common (symbol: TLN) was one of the worst losers
of the trading day today (2016-04-20), losing -6.18%. The number of shares
that changed hands was 2,431,182, or about 2 times the average daily volume
in the stock.
The closing price was $11.54, amounting to a market cap of $1,480,000,000,
about -57.26% off the highest price in the last 12 months. The stock has
been trading at a range between $5.73 and $27.0.
TLN is in the Electric Utilities: Central industry, part of the Public
Utilities sector. It first went public in 2015.