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

Companhia de saneamento Basico (symbol: SBS) was one of the worst losers of
the trading day today (2015-09-04), losing -7.45%. The number of shares
that changed hands was 2,024,498, or about 1 times the average daily volume
in the stock.
The closing price was $3.85, amounting to a market cap of $2,630,000,000,
about -60.47% off the highest price in the last 12 months. The stock has
been trading at a range between $3.83 and $9.74.
SBS is in the Water Supply industry, part of the Public Utilities sector.
It first went public in 2002.
Looking at its valuation, the stock is now trading at 12.5 times earnings.