Old Adage24 May 2019 15:50
"Sell in May and go away" is a well-known financial-world adage, based on the historical underperformance of some stocks in the "summery" six-month period commencing in May and ending in October, compared to the "wintery" six-month period from November to April. If a trader or investor follows the sell-in-May-and-go-away strategy, they would divest their equity holdings in May (or at least, the late spring) and invest again in November (or the mid-autumn).
I think that PMO qualifies as an underperforming stock:)