Group 1 - The top three companies with the highest short positions are WuXi AppTec (02359), Vanke Enterprises (02202), and Ganfeng Lithium (01772), with short ratios of 16.98%, 12.80%, and 12.69% respectively [1][2] - The companies with the largest absolute increase in short positions are Weimob Group (02013), China Petroleum & Chemical Corporation (00386), and Tiangong International (00826), with increases of 2.88%, 1.26%, and 1.24% respectively [1][2] - The companies with the largest absolute decrease in short positions are Vanke Enterprises (02202), Meilan Airport (00357), and COSCO Shipping Holdings (01919), with decreases of -1.83%, -1.64%, and -1.49% respectively [1][3] Group 2 - The top ten companies with the highest short ratios include WuXi AppTec (02359), Vanke Enterprises (02202), and Ganfeng Lithium (01772), among others [2] - The companies with the most significant increases in short ratios include Weimob Group (02013), China Petroleum & Chemical Corporation (00386), and Tiangong International (00826) [2] - The companies with the most significant decreases in short ratios include Vanke Enterprises (02202), Meilan Airport (00357), and COSCO Shipping Holdings (01919) [3][4]