Binance Coin (BNB) of the binance exchange is rising in value, scoring gains of 16% over the last 24 hours. Volumes for the coin booming. What might be behind the sudden rise?

https://cryptocoincharts.info/coins/show/bnbI think exchange coins are a stable hedge against the general fluctuations of the market. MOst of the exchange coins have decently performed in the bear market for instance BIX and HT too.