Investing in the cannabis industry early on can be a great way to set yourself up for some long-term gains. Buying shares of a newly listed marijuana company can be risky but doing so will give you an opportunity to amplify your potential returns. With market caps all over $1 billion, Ascend Wellness, Verano Holdings, and WM Holding (NASDAQ: MAPS) are some of the larger marijuana companies to begin trading on major exchanges this year.