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

Pengrowth Energy Corporation (symbol: PGH) was one of the worst losers of
the trading day today (2015-09-01), losing -15.07%. The number of shares
that changed hands was 3,079,265, or about 2 times the average daily volume
in the stock.
The closing price was $1.24, amounting to a market cap of $670,460,000,
about -80.56% off the highest price in the last 12 months. The stock has
been trading at a range between $0.84 and $6.38.
PGH is in the Oil & Gas Production industry, part of the Energy sector.