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

CPFL Energia S.A. CPFL Energia (symbol: CPL) was one of the worst losers of
the trading day today (2015-08-28), losing -4.61%. The number of shares
that changed hands was 463,285, or about 1 times the average daily volume
in the stock.
The closing price was $8.9, amounting to a market cap of $4,420,000,000,
about -54.82% off the highest price in the last 12 months. The stock has
been trading at a range between $8.62 and $19.7.
CPL is in the Electric Utilities: Central industry, part of the Public
Utilities sector. It first went public in 2004.
Looking at its valuation, the stock is now trading at 18.09 times earnings.