Stock Analysts’ upgrades for Wednesday, May 3rd: Ambev (NYSE:ABEV) was upgraded by analysts at StockNews.com from a buy rating to a strong-buy rating. BHP Group (NYSE:BHP) was upgraded by analysts at StockNews.com from a buy rating to a strong-buy rating. BlackRock Capital Investment (NASDAQ:BKCC) was upgraded by analysts at StockNews.com from a sell rating to […]