India, Sept. 23 -- Bitcoin is on track for a rare three-month winning streak. Bitcoin has gained in July, August and September, which would give it three straight months of positive returns. An analysis shows this has happened only once before in Bitcoin's history.

Bitcoin gained strongly in July and August. Bitcoin rose 4.8% in July and then jumped 25.2% in August. September has also remained positive, with Bitcoin trading around $86,140, up 10.9% at the time of the analysis. CoinDesk provided the price and monthly performance data.

The only previous three-month winning streak happened in 2012. In 2012, Bitcoin gained 41.0% in July, 6.4% in August and 24.4% in September. That makes the current three-month run unusual because a similar ...