Bitcoin is experiencing its longest period of divergence from the S&P 500 index since 2020, underscoring deepening weakness in cryptocurrency markets even as U.S. equities have resumed gains. While BTC entered a bear market in October following a severe liquidation event, the S&P 500 has continued to climb, highlighting a rare decoupling between traditional and digital asset classes.
The catalyst for Bitcoin's weakness was a liquidation cascade on October 10 that wiped approximately 70,000 BTC in open interest from the market—equivalent to more than six months of accumulated leverage in a single trading session. The purge reset open interest to levels not seen since April 2025, triggering a cascade of forced position closures that accelerated the sell-off. Since that event, BTC has continued correcting, pressured by rising geopolitical tensions that have rattled global economic confidence.
The divergence underscores Bitcoin's structural vulnerability relative to equity markets. While the S&P 500 has only recently begun correcting, BTC has already sustained substantial losses, reflecting the cryptocurrency's elevated sensitivity to liquidation events and macro shocks. Analysts note that Bitcoin's higher volatility and lower institutional resilience make it prone to outsized drawdowns during periods of financial stress, a dynamic playing out in stark relief against the relative stability of traditional indexes.