$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 (2016-09-13), losing -10.55%. The number of shares that
changed hands was 6,121,969, or about 2 times the average daily volume in
the stock.
The closing price was $12.3, amounting to a market cap of $1,440,000,000,
about -53.79% off the highest price in the last 12 months. The stock has
been trading at a range between $7.2 and $26.62.
DYN is in the Electric Utilities: Central industry, part of the Public
Utilities sector.