Over the last few years, the cannabis sector has skyrocketed, and its momentum has carried into this year. During the first quarter of 2019, several cannabis stocks tacked on significant gains to their share prices, while the first cannabis exchange traded fund (ETF) the Horizons Marijuana Life Sciences ETF (HMMJ) (HMLSF) rose 54% during the first quarter. Recently, the sector has seen pull back. While there may be large growth opportunities for cannabis companies, the budding sector still faces challenges ranging from supply shortages to cannabis laws. Still, this has done little to diminish investor enthusiasm towards cannabis stocks. Cowen & Co.’s analyst Andrew Stein believes that the recent downward pressure on cannabis stocks looks temporary and that investors will use “this downturn as a buying opportunity as most are convinced that this sector remains a second half 2019- 2020 story”. With that being said, there are several cannabis stocks that investors may benefit from keeping tabs on.Is This A Buying Opportunity For Marijuana Stocks?