Like stoners, cannabis investors seem euphorically oblivious to marijuana risks. Investors in companies including Tilray (TLRY) Canopy Growth (CGC) Cronos (CRON) and Green Thumb Industries (GTBIF) are taking on serious litigation risk. Cigarette companies like Philip Morris International (PM) and Altria (MO) sell âcancer sticks.â Anheuser-Busch InBev (BUD) and Constellation Brands (STZ) sell beer and booze, which have obvious health risks.