S&P 500 Index Average Monthly Returns Since 1950 and Elections Years February has averaged zero during an US election year since 1950, but has the best month the past 10 years. Image: LPL Financial LLC

S&P 500 Monthly Returns During an U.S. Election Year Since 1950, February returns have averaged zero for the S&P 500 during an U.S. election year. Image: Ryan Detrick, LPL Financial LLC

S&P 500 Average Monthly Returns Since 1950, the S&P 500 has been positive on average in January, but not over the past 10 & 20 years. Image: Ryan Detrick, LPL Financial LLC

Average Monthly Return During Global Manufacturing PMI Expansion Phases Since August 15 2019, the rotation performance has been higher than average during global manufacturing PMI expansion phases. Image: Goldman Sachs Global Investment Research

S&P 500 Average Monthly Returns and Pre-election Year Since 1950, and over the past 10 & 20 years, the S&P 500 has been positive on average in December. Image: Ryan Detrick, LPL Financial LLC

S&P 500 Monthly Median Returns and % of Years with Positive Return since 1985 This chart puts into perspective the median monthly returns of the S&P 500 and % of years with positive returns since 1985. Image: Goldman Sachs Global Investment Research

Distribution of Monthly S&P 500 Returns Since 1928 December was an abnormally bad month for U.S. equities in 2018. Image: Goldman Sachs Global Investment Research

S&P 500 – Historical September Monthly Total Returns September is usually a volatile month. But since to 1980, September has been positive 54% of the time. Image: Richardson GMP

Distributions of Volatility by Countries This chart shows the average of 6-month rolling standard deviation of monthly returns over the last 10 years. Image: J.P. Morgan

Historically, June is One of the Weakest Months of the Year for US Stocks since 1950 The chart shows the S&P 500 Index average monthly returns. Since 1950, and over the past 10 & 20 years, the S&P 500 has been negative on average in June. Image: LPL Financial LLC