May 07 2019 Off 6-Month Returns for the S&P 500 Index from 1950 to 2018 The next 6 months have been the worst on average. Here are the 6-month returns for the S&P 500 Index from 1950 to 2018.Our previous two articles: “Sell in May and Go Away?” and “Sell in May and Go Away? Maybe Not this Year“Image: LPL Research