Cannabis is still illegal under federal law in the U.S. but legal in Canada. This dichotomy means that for the time being, only Canadian operators can list on U.S. exchanges like the Nasdaq and New York Stock Exchange. U.S. cannabis operators, which operate legally under state laws, can list on Canadian exchanges. This means the U.S. operators, like Curaleaf, Green Thumb Industries and Cresco, are not as accessible to investors—Canadian companies like Tilray and Sundial can be traded on Robinhood, while U.S. companies are not.