Bitcoin's Correlation With Stocks Spikes
Bitcoin's correlation with the S&P 500 and other equity benchmarks has surged recently as both asset classes experience synchronized volatility. The tightening link suggests crypto markets are highly sensitive to broad risk-off sentiment, forcing traders to treat macro data releases and equity market drops as potential crypto event triggers.
The 30-day correlation coefficient between Bitcoin and the S&P 500 recently reached 0.74, the highest level this year. This lockstep movement challenges the narrative of Bitcoin as a hedge against volatility in traditional financial markets. Historically, the relationship was much weaker, with a 10-year correlation of just 0.17 to the S&P 500. The recent tightening reflects a fundamental shift, as the five-year correlation has already climbed to 0.41, indicating a more sustained link between crypto and equities. The key driver behind this increased correlation is institutional adoption. The launch of spot Bitcoin ETFs and the integration of companies like MicroStrategy, which holds over 1% of the total Bitcoin supply, into major stock indices have directly tied Bitcoin's fate to the broader equity market. This integration has led to Bitcoin behaving like a leveraged risk asset. Its price movements often amplify the S&P 500's performance, both on the upside and the downside. For example, during the market downturn of 2022, the S&P 500 declined by 19%, while Bitcoin's value fell by a much larger 65%. While institutional involvement has heightened the correlation, it has also contributed to a gradual reduction in Bitcoin's infamous volatility over the long term. According to 21Shares, Bitcoin's 90-day annualized volatility was nearly cut in half from March 2021 to March 2025. For now, the era of Bitcoin as an uncorrelated, alternative asset appears to be on hold. Its growing adoption by mainstream finance means it is increasingly subject to the same macroeconomic pressures and risk-off sentiment that drive traditional markets.
