Dow Jones: Since November 2014, the correlation between Bitcoin and the S&P 500 index is 0.21, and with gold it's 0.09

Data analysis conducted by Dow Jones Market Data shows that the rolling correlation between gold and the S&P 500 index has been zero since 1975, meaning there is no linear relationship (1 represents a perfect positive correlation). Since November 2014, the correlation between Bitcoin and the S&P 500 index has been 0.21, while the correlation between Bitcoin and gold has been 0.09. George Milling-Stanley, Chief Gold Strategist at State Street Global Advisors, said that Bitcoin's returns in its relatively short lifespan should not be overlooked, but investors should note that given Bitcoin's greater volatility than gold over the past 15 years, they have also added significant risk to their portfolios in their pursuit of returns.