Rival Cronos Group (CRON) has soared more than 40% in the past week, including an 11% pop Tuesday. Tilray (TLRY), another competitor that just went public on the Nasdaq last month, has skyrocketed more than 60% in the last five days. Tilray shares were up 10% alone on Tuesday.
Both companies, which are also based in Canada, have clearly attracted more interest after Constellation (STZ) took an increased stake in Canopy Growth. That deal, announced last week, led to a 30% surge in Canopy's stock (CGC).