Golden Finance reported that data analysis conducted by Dow Jones Market Data showed that the rolling correlation between gold and the S&P 500 Index has been 0 since 1975, which means there is no linear relationship (1 represents a perfect positive correlation). Since November 2014, the correlation between Bitcoin and the S&P 500 is 0.21, while the correlation between Bitcoin and gold is 0.09. George Milling-Stanley, chief gold strategist at State Street Global Advisors, said that Bitcoin’s returns during its short life cannot be ignored, but investors should be aware that given Bitcoin’s performance over the past 15 years, More volatile than gold mid-year, they also add a lot of risk to their portfolios in their search for returns.