Yuan Da Xin Xi·2025-09-15 12:33Group 1: Institutional Research on Popular Companies - The top twenty companies with the highest number of institutional research visits in the past 30 days include Mindray Medical, Desay SV, Crystal Optoelectronics, Jing Sheng Machinery, and United Imaging [12][13] - In the last five days, the most researched companies were Jing Sheng Machinery, Lianchuang Optoelectronics, Wushang Group, Water Holdings, and Nandu Power [12] - Among the top twenty companies in the past 30 days, 18 companies had ten or more rating agencies involved, including Proya, Mindray Medical, and United Imaging [12] Group 2: Shareholder Increase in A-Share Listed Companies - From September 8 to September 12, 2025, seven listed companies announced significant shareholder increases, including China Railway Industry, Hualing Steel, and Deep Science and Technology, with Hualing Steel and Furui shares planning to increase their holdings by more than 1% of total share capital [19][20] - From January 1 to September 12, 2025, a total of 268 companies announced shareholder increases, with 83 having ten or more rating agencies involved. Among these, 23 companies had an average proposed increase amount exceeding 1% of their latest market value, including Xianhe Co., Hubei Yihua, Xinji Energy, and Zhongju High-tech [21][22] Group 3: Share Buyback Situation in A-Share Listed Companies - From September 8 to September 12, 2025, 67 companies announced buyback progress, with 25 having ten or more rating agencies involved. Six companies, including Juzan Optoelectronics, Dream Lily, and Homejoy, had an average expected buyback amount exceeding 1% of their market value on the announcement date [25][27] - From January 1 to September 12, 2025, a total of 1,732 companies announced buyback progress, with 419 having ten or more rating agencies involved. Among these, 111 companies had an average expected buyback amount exceeding 1% of their market value, with companies like Chengde Lulu and Liugong in the board proposal stage [26][28]