North America and Canada are the largest medical marijuana markets with so many states in the USA following along with the Trudeau government to decriminalize the use of medical marijuana and for some states even recreational use of the narcotic.
Namely Sweden and Belgium’s strictly conservative approach to the drug, whereas England, Germany, Amsterdam, and Portugal’s more progressive attitudes to further research into its medicinal properties. It is important to note that most Australian companies choose to remain capital-light and hold investments in intangible assets whose value is accounted for in terms that may not relate strictly to Return on Equity or Return on Assets.
The sector being a developing one can be volatile and recent plunges in its stocks might have been correlated to the Feb 2021 Reddit Meme Stocks rally.