According to statistics, in May, 71 institutions conducted a total of 5,151 ratings, with a total of 1,859 individual stocks receiving a "buy" rating from brokerage research reports. In terms of rating adjustments, multiple stocks received upgrades from institutions. By industry, several stocks in the semiconductor sector made the list, including CMS, Shengke Communication, Weicai Technology, and Naxinwei. In addition, some food and beverage stocks also received rating upgrades, including Lotus, BAIRUN CORPORATION, and EASTROC BEVERAGE. The latest ratings for the above-mentioned stocks are all "buy."