That information is quite misleading. It presumes you sold before May and had no exposure all month, which is not what the axiom states. Instead it is sell IN May. Most programs that attempt to profit from that strategy use a momentum based technical indicator to exit at some point after May 1st (possibly even after May) once a sell signal is triggered.  

    https://school.stockcharts.com/doku.php?id=trading_strategies:six_month_cycle_macd

Newsletter

Subscribe to our email list for regular free market updates
as well as a chance to get coupons!