Bitcoin BTC$86,571.27 has posted gains in July and August and looks set to end September higher, marking a three-month winning streak that has occurred only once before in the cryptocurrency’s history. Bitcoin’s price rose by 4.8% in July and 25.2% in August, according data source CoinDesk. September is also in positive territory, with prices trading 10.9% higher at $86,140 as of this writing.