In 2019, the marijuana industry experienced significant growth, with several companies emerging as leaders. Among these, the Motley Fool recognized some of the best US marijuana stocks to invest in. This article provides a detailed analysis of these top-performing stocks, their potential, and the factors that contributed to their success.

Understanding the Motley Fool's Selection Criteria
The Motley Fool is a well-known investment advisory service that offers insights into various industries, including the marijuana sector. To determine the best US marijuana stocks of 2019, the Motley Fool considered several factors, such as market performance, growth potential, and management quality.
1. Market Performance
One of the primary factors considered was the market performance of the stocks. The Motley Fool analyzed the financial reports and stock prices of the companies, looking for those that had shown consistent growth and outperformed the market.
2. Growth Potential
Another critical factor was the growth potential of the companies. The Motley Fool looked for companies with a strong business model, a diverse product portfolio, and a solid market position. They also considered companies that were expanding into new markets and had the potential to capture a significant share of the market.
3. Management Quality
The Motley Fool also paid close attention to the quality of the management team. They looked for experienced and capable leaders who had a proven track record of success in the industry.
Top US Marijuana Stocks of 2019
Based on these criteria, the Motley Fool identified several top US marijuana stocks that performed well in 2019. Here are some of the key companies:
1. Canopy Growth Corporation (TSX: WEED, NYSE: CGC)
Canopy Growth Corporation is one of the largest cannabis companies in the world, with a diverse product portfolio and a strong presence in both the Canadian and international markets. The company has consistently shown strong growth, driven by its innovative products and strategic partnerships.
2. Aurora Cannabis Inc. (TSX: ACB, NYSE: ACB)
Aurora Cannabis is another leading player in the marijuana industry, with a robust product line and a strong focus on organic growth. The company has successfully expanded its operations in Canada and is looking to expand into new markets.
3. Tilray Inc. (NASDAQ: TLRY)
Tilray is a global leader in medical cannabis, with operations in several countries. The company has a strong focus on research and development, and its products are sold in over 20 countries worldwide.
4. Cronos Group Inc. (TSX: CRON, NASDAQ: CRON)
Cronos Group is a diversified cannabis company with a strong focus on innovation and research. The company has a strong pipeline of products and has formed strategic partnerships with leading companies in the industry.
5. Curaleaf Holdings Inc. (CSE: CURA, OTCPK: CURAF)
Curaleaf is one of the largest cannabis companies in the United States, with a strong presence in several states. The company has a diverse product portfolio and a focus on providing high-quality products to its customers.
Conclusion
The Motley Fool's selection of the best US marijuana stocks in 2019 highlights the potential of the industry and the opportunities for investors. As the marijuana industry continues to grow, these companies are well-positioned to capture a significant share of the market and deliver strong returns to their investors.