$PBR is one of biggest winner #stocks today. read more:

Petroleo Brasileiro S.A.- Petrobras (symbol: PBR) was one of the biggest
winners of the trading day today (2016-02-22), gaining 16.83%. The number
of shares that changed hands was 32,552,063, or about 1.2 times the average
daily volume in the stock.
The closing price was $3.68, amounting to a market cap of $24,000,000,000,
about -65.12% off the highest price in the last 12 months. The stock has
been trading at a range between $2.71 and $10.55.
PBR is in the Oil & Gas Production industry, part of the Energy sector.