Bitcoin's October 2025 reset broke its bond with traditional markets forever
Bitcoin's relationship with traditional markets shifted dramatically after October 2025. A major liquidation event and geopolitical tensions in Iran reshaped investor behaviour, pushing capital away from equities and into crypto. The changes also altered Bitcoin's correlation with the S&P 500, turning it negative for the first time in months.
The turning point came in October 2025 with a $19 billion liquidation that erased 70,000 BTC in open interest. This event permanently reduced leverage and liquidity across crypto markets. Around the same time, geopolitical unrest in Iran drove investors to rotate funds from stocks into Bitcoin, causing equities to fall while BTC prices climbed.
Before the reset, Bitcoin futures activity remained high, with open interest holding steady between 35 and 45 billion from April to September 2025. But after October, this figure plunged to 25 billion, then kept falling to 21.9 billion by March 2026. The drop suggested a sharp decline in trading volumes, though exact futures data for the period remains unreported. Institutional selling added further pressure. Outflows from spot Bitcoin ETFs turned these vehicles into a source of downward momentum. As a result, Bitcoin's 30-day correlation with the S&P 500 flipped negative, breaking its usual pattern of moving in tandem with stocks.
The structural reset in October 2025 left lasting effects on crypto markets. Lower leverage, reduced liquidity, and a negative correlation with equities marked a new phase for Bitcoin. With institutional outflows and geopolitical factors still at play, the gap between BTC and traditional assets appears set to persist.
