Bitcoin is on track to record monthly gains for a third consecutive month in September, which would be its first such streak since 2012. BTC rose 4.8% in July, 25.2% in August and 10.9% in September, trading around $86,140. Bitcoin has recorded three consecutive monthly gains only once, in 2012, when it advanced 41.0% in July, 6.4% in August and 24.4% in September before falling 9.7% in October. CoinDesk's analysis said the historical episode offers limited guidance for the current market because it is based on a sample of just one instance.