Cronos stock downgraded after rocketing more than 100% in 2019 so far By: MarketWatch February 05, 2019 at 11:17 AM EST GMP lowers its rating to hold from buy on valuation grounds. Rest of the cannabis sector is mixed. Read More >> Related Stocks: Altria Group Aphria Inc Cronos Group Inc ETFMG Alternative Harvest ETF Hexo Corp Nextraction Energy Corp Tilray Brands Inc