An old Wall Street adage is still relevant today

The US presidential cliffhanger kept us occupied for most of November. After the last six elections, Wall Street performed better by 11% under a Republican incumbent over the four-year cycle but it was the post-election year that made the real difference, with improvements as much as 16%. That Republicans are better for the stock market is confirmed by the long-term statistics: 5% outperformance per cycle on average over the past 40 elections. Buy at the mid-term and sell at the full-term elections is an old Wall Street adage, but is it still valid? Should investors be selling out of Wall...