According to the recent study by Bespoke Investment Group, analysts are bullish about 13 stocks on which higher than 70% of the analyts have buy ratings in the Standard & Poor’s 500. Three of these stocks are AbbVie Inc (NYSE:ABBV), Medtronic, Inc. (NYSE:MDT) and Union Pacific Corporation (NYSE:UNP). AbbVie Inc (NYSE:ABBV) is one of the…