Equities Research Analysts’ downgrades for Friday, May 31st: Cracker Barrel Old Country Store (NASDAQ:CBRL) was downgraded by analysts at StockNews.com from a hold rating to a sell rating. CVR Energy (NYSE:CVI) was downgraded by analysts at StockNews.com from a buy rating to a hold rating. HCA Healthcare (NYSE:HCA) was downgraded by analysts at StockNews.com from […]