Tjhe growth of BNB's price depend on the marketing strategy of CZ. Main reason for the unstopable growth of BNB is for introducing the IEO system. In that time, BNB even cross the Bitcoin's yealy turnover rate which is really good for the bnb lovers. In the current time, binance need to introduce more efficient strategy where users can use bnb as a service more and more. Thus again we'll be able to see a great pump/growth on it.
beside the IEO system at Binance BNB are always burn their coin after Binance buyback BNB from market and make demand are high and still stable than other altcoin, but the main problem is BitcoinChain size is too large for new Blockchain just released -/+ 2 year ago, like EOS blockchain