Aurora Cannabis (NASDAQ: ACB) is one of the top marijuana stocks in Canada. It has fallen behind both Tilray (NASDAQ: TLRY) and Canopy Growth (NASDAQ: CGC) in terms of revenue, but it’s still a relatively big player in the pot market up north. However, with the company reporting yet another lackluster period this week with respect to revenue growth, it could fall further behind, especially as marijuana producer Hexo (NASDAQ: HEXO) has been trying to grow via acquisitions.