were up more than 3.8% in trading Thursday after announcing that Martha Stewart would be joining the cannabis company in an advisory role to help drive interest in hemp-derived CBD products. Canopy Growth said it hopes to tap into Stewart's "deep understanding of what consumers in the United States and around the world want," as the Canadian weed company pushes itself into the mainstream. "I am delighted to establish this partnership with Canopy Growth and share with them the knowledge I have gained after years of experience in the subject of living," said Stewart.