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

B2Gold Corp Common shares (Cana (symbol: BTG) was one of the worst losers
of the trading day today (2016-05-30), losing -7.41%. The number of shares
that changed hands was 2,343,783, or about 1 times the average daily volume
in the stock.
The closing price was $1.75, amounting to a market cap of $1,630,000,000,
about -24.24% off the highest price in the last 12 months. The stock has
been trading at a range between $0.6 and $2.31.
BTG is in the Precious Metals industry, part of the Basic Industries sector.