The downgrade by Citigroup, a major financial institution, to a Sell rating from Neutral, combined with a significant reduction in the price target, reflects a bearish view on Molson Coors Beverage's future stock performance. This is likely due to concerns over the company's financial health, market position, or potential challenges in the industry. Such a downgrade can influence market perception and investor sentiment, potentially leading to a decrease in stock price in the short term.