Bitcoin has risen 10.1 percent this September, positioning Bitcoin for its strongest monthly performance since 2012. This rebound is unusual for a historically weak period.
In September 2012, Bitcoin recorded a gain of 13.1 percent. Marketo Data, using a different calculation methodology, places the 2012 September gain at 22.1 percent. Bitcoin’s current trajectory suggests it may surpass these figures before the month concludes.
The rally defies the long-standing “September curse,” where Bitcoin posted negative returns for six consecutive years from 2017 to 2022. Bitcoin broke this trend in 2023, with gains also recorded in September 2024 and 2025. This year’s September increase has already exceeded the gains seen in the past two years.
Bitcoin’s price action shows a steep rebound. The asset climbed 13.8 percent over the past seven days and 11.6 percent over the past 30 days. On Sept. 21, Bitcoin moved above $87,000 intraday, hitting $87,234, its highest level since January.
Strong inflows into U.S. spot Bitcoin exchange-traded funds (ETFs) supported the uptrend. These ETFs collectively registered net inflows of $999 million on Sept. 21 alone, according to market data.
In the derivatives market, a short squeeze added upward momentum to Bitcoin’s price. This forced closure of short positions amplified buying pressure.
The current price action has allowed Bitcoin to recover a substantial portion of losses incurred during an early-year drop. On an annual basis for 2026, Bitcoin still hovers around flat. The asset trades 31 percent below its all-time high of $126,080, recorded on Oct. 6, 2025.
Bitcoin's August performance saw a 25 percent rise, leading into this strong September. It is now on track for its third consecutive monthly gain from July through September, a streak not seen since 2013.
