Group 1 - The top three companies with the highest short position ratios are Vanke Enterprises (02202) at 22.40%, COSCO Shipping Holdings (01919) at 16.93%, and ZTE Corporation (00763) at 15.67% [1][2] - The companies with the largest absolute increase in short position ratios are UBTECH Robotics (09880) with an increase of 3.27%, Vanke Enterprises (02202) with an increase of 2.80%, and SUTENG (02498) with an increase of 1.62% [1][2] - The companies with the largest absolute decrease in short position ratios are China Civil Aviation Information Network (00696) with a decrease of -5.36%, Beijing Enterprises Water Group (00371) with a decrease of -2.98%, and China Resources Pharmaceutical Group (03320) with a decrease of -1.79% [1][3] Group 2 - The top ten companies with the highest short position ratios include Heng Rui Medicine (01276) at 15.64%, Ping An Insurance (02318) at 13.35%, and Dongfang Electric (01072) at 13.01% [2] - The companies with the largest increase in short position ratios also include Dongfeng Motor Group (00489) with an increase of 1.37% and Dongfang Electric (01072) with an increase of 1.36% [2] - The companies with the largest decrease in short position ratios also include China Everbright Bank (06818) with a decrease of -1.63% and Xiehe New Energy (00182) with a decrease of -1.09% [3][4]