Group 1 - The top three companies with the highest short positions are Vanke Enterprises (02202), Dongfang Electric (01072), and COSCO Shipping Holdings (01919), with short ratios of 18.81%, 18.09%, and 16.45% respectively [1][2] - The companies with the largest increase in short positions are Lens Technology (06613), Shangmei Co., Ltd. (02145), and Youran Dairy (09858), with increases of 2.38%, 0.97%, and 0.64% respectively [1][2] - The companies with the largest decrease in short positions are Sanhua Intelligent Control (02050), SenseTime-W (00020), and Ganfeng Lithium (01772), with decreases of -1.93%, -1.22%, and -1.06% respectively [1][2] Group 2 - The top ten companies with the highest short ratios include Hengrui Medicine (01276) at 15.21%, ZTE Corporation (00763) at 14.26%, and Ping An Insurance (02318) at 14.10% [2] - The companies with the most significant increase in short ratios also include China Merchants Bank (03968) at 7.77% and Laopu Gold (06181) at 4.27% [2] - The companies with the most significant decrease in short ratios also include Zhongchuang Zhiling (00564) at 4.15% and Weichai Power (02338) at 4.93% [2]