As talk of potential legislation to legalize cannabis in the U.S. continues, stocks of many Canadian growers have been volatile. In just the past month, shares of Tilray (NASDAQ: TLRY), Sundial Growers (NASDAQ: SNDL), and OrganiGram Holdings (NASDAQ: OGI) are down 30%, 20%, and 18%, respectively. Tilray CEO Irwin Simon did give an interview yesterday in which he discussed the future of the company and explained its position in preparation for potential U.S. legalization.