https://www.fool.com/investing/2018/01/07/your-2018-guide-to-investing-in-marijuana-stocks.aspxNote: while you can purchase the Canadian weed exchange traded funds (ETF's), if you're a U.S. citizen living in the U.S. you are likely to incur a $50.00 intl trading fee on top of a $5 to 7 dollar regular trading fee.
MJX is an ETF that can be bought without any intl fees
a big advantage of using an ETF if buying such stocks is that it reduces the risks associated with owning the stock of one company
Supporting companies not involved directly in handling Cannibus:
"Perhaps the best stock in this category is
Scotts Miracle-Gro (NYSE:SMG). Scotts sells fertilizers, hydroponics, and lighting systems that are essential for growing and cultivating marijuana plants. Over the past few years, the company has made multiple acquisitions to beef up its presence in the cannabis industry, including buying American Agritech, LLC, an Arizona-based leading producer of plant nutrients, plant supplements, and growing systems used for hydroponic gardening, and Gavita, a Dutch marketer of indoor lighting used in the greenhouse and hydroponic markets"
one note on that is that SMG is expensive .....over $100/share. An alternative is
GRWG $5.70/share ... a small but growing company with outlets in all marijuana legalized states