Top Marijuana Stocks to Buy in 2018

Investing in marijuana stocks seems practically stuffy in comparison with buying bitcoin. But at least with some marijuana stocks, your investment buys part of a business that is growing, both plants and sales, and isn't at serious risk of losing half of its value overnight.

Which marijuana stocks are the best on the market? I'd rule out the tiny penny stocks. And with uncertainty about what might happen with federal enforcement of U.S. marijuana laws, my inclination is to stay clear of stocks focused on the U.S. market for now. Even with these stocks thrown out, several options remain. In my view, Canopy Growth (NASDAQOTH: TWMJF), MedReleaf (NASDAQOTH: MEDFF), and Aurora Cannabis (NASDAQOTH: ACBFF) look like the best marijuana stocks to buy in 2018. Here's why these three rank at the top of the list.

Marijuana leaf on top of $100 bills
Marijuana leaf on top of $100 bills

Image source: Getty Images.

1. Canopy Growth

I view Canopy Growth as the top marijuana stock to buy in 2018 for two primary reasons. First, it's currently the biggest marijuana grower in Canada in terms of production capacity and sales. By my estimation, Canopy Growth currently has a market share of around 20% of the Canadian medical-marijuana market. (Disclaimer: The rapid growth of the Canadian market makes it tricky to accurately pin down market share for any company, so this estimate is a rough one.)

What would a 20% market share of the recreational-marijuana market mean for Canopy Growth? The Canadian Parliamentary Budget Officer (PBO) projects a market size between $4.2 billion and $6.2 billion annually. Professional services firm Deloitte estimates the market will be between $4.9 billion and $8.7 billion annually. If we use the average of the midpoints of these two ranges, Canada would have a market size of $6 billion. Canopy Growth's slice of that market, assuming it wins a 20% market share, is $1.2 billion. Should Canopy Growth come even close to that level of sales, the stock should soar more than it already has. And, by the way, at least one estimate predicts a much bigger market than the PBO and Deloitte expect.

What's the second reason I like Canopy Growth? The company's partnership with big alcoholic-beverage maker Constellation Brands (NYSE: STZ). It's not just that Constellation's $245 million stake in Canopy gave the marijuana grower an endorsement like no other marijuana stock has received so far. Constellation wants to develop a cannabis-infused beer. While that's not my cup of tea (or beer), I suspect such a product would be a huge hit -- and even anticipation of the beer could drive Canopy stock even higher.