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

National Bank of Greece SA (symbol: NBG) was one of the biggest winners of
the trading day today (2015-10-21), gaining 12.365%. The number of shares
that changed hands was 15,557,929, or about 1.6 times the average daily
volume in the stock.
The closing price was $0.9051, amounting to a market cap of $3,200,000,000,
about -69.1092% off the highest price in the last 12 months. The stock has
been trading at a range between $0.43 and $2.93.
NBG is in the Commercial Banks industry, part of the Finance sector.