Bitcoin’s consecutive October declines have placed its long-standing “Uptober” reputation under scrutiny. The cryptocurrency fell 7.3% in October 2026, following a roughly 4% loss the previous year, according to CoinGlass data, despite the month’s historically strong performance.
October recorded Bitcoin’s highest median monthly return at 15.4%, with gains in 10 of 13 years through 2025, according to Andrew Yang, a researcher at crypto analytics firm Kaiko. September’s historically weak pattern has also shifted, with Bitcoin rising every September since 2023.
Yang said Bitcoin’s declining volatility could be making seasonal trends less pronounced. The typical monthly move fell from 14% between 2013 and 2016 to 9.6% since 2024, reducing the scope for sharp calendar-driven rallies.
Analysts also highlighted institutional activity and economic conditions as increasingly important factors. Justin d’Anethan, head of research at Arctic Digital, said exchange-traded fund flows and corporate Bitcoin purchases are influenced more by liquidity, interest rates and investment mandates than by seasonal narratives.
US spot Bitcoin ETFs registered $515 million in net outflows in October, while spot Ether ETFs recorded a monthly record of $1.61 billion in withdrawals. Yang cautioned that Bitcoin ETFs, which were approved in January 2024, have not yet operated long enough to provide a definitive seasonal comparison. He said Bitcoin increasingly behaves like a macroeconomic asset, driven by economic data and institutional flows.
The two consecutive October losses do not necessarily invalidate the “Uptober” pattern. Julio Moreno, head of research at CryptoQuant, said October has generally performed better during Bitcoin bull markets and worse during bear markets, making the broader market cycle an important consideration.
Moreno said price performance depends more on spot-demand dynamics than on cyclical patterns. Markus Levin, co-founder of XYO, added that traders may anticipate seasonal gains earlier, causing a potential rally to be priced in before October begins.
D’Anethan said “Uptober” has historical validity but, like other seasonality indicators, can fail. The latest decline has instead prompted darker descriptions, including “Black October” and “Hacktober,” amid crypto security incidents such as Binance’s reported $6.3 billion hack.
Sources: Cointelegraph.