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

Dynegy Inc. Common Stock (symbol: DYN) was one of the worst losers of the
trading day today (2015-12-02), losing -11.18%. The number of shares that
changed hands was 5,477,922, or about 2 times the average daily volume in
the stock.
The closing price was $14.46, amounting to a market cap of $1,740,000,000,
about -58.32% off the highest price in the last 12 months. The stock has
been trading at a range between $14.27 and $34.69.
DYN is in the Electric Utilities: Central industry, part of the Public
Utilities sector.
Looking at its valuation, the stock is now trading at 30.51 times earnings.