bunhill Written by Sam Kovacs. Introduction: Does Selling in May make sense? "Sell in May and go away." This Wall Street adage, with roots going back to 18th century England, has somehow endured the test of time. I've always been fascinated by these seasonal shifts and trends in the market. The original phrase was "Sell in May and go away and come back on St. Leger's day." St. Leger's day usually lands somewhere in the middle of September. The idea was that British investors should sell their shares to enjo ...