With reduced sales and operating expectations for the rest of the year, Novo Nordisk A/S is on the receiving end of a huge stock drop. For a big pharma, where the stock drops are usually more modest, the shares (NASDAQ:NVO) fell off a cliff on July 29, closing 21.8% downward to $53.93 each, the lowest price per share in the past 12 months. Lower U.S. sales of semaglutide blockbusters Wegovy and Ozempic for treating obesity and diabetes are at the heart of the plunge. In May, the Danish company had expected 13% to 21% sales growth but now is looking at only 8% to 14%.