SIASUN(SZ:300024) Jin Rong Jie·2025-09-08 07:51Market Performance - On September 8, A-shares showed mixed performance with the Shanghai Composite Index rising by 0.38% to 3826.84 points, the Shenzhen Component Index increasing by 0.61% to 12666.84 points, while the ChiNext Index fell by 0.84% to 2933.25 points [1] - The best-performing sectors included PLC concepts, robotic actuators, and PEEK materials, while sectors such as optical communication modules, computing power concepts, and 5G concepts experienced declines [1] Fund Manager Changes - In the past 30 days (August 9 to September 8), 593 fund managers have left their positions, with 38 announcements made on September 8 alone. Reasons for departure included job changes (7 managers), personal reasons (3 managers), and product expiration (2 managers) [3][4] - Notable fund managers who left include Zhang Zhenqi and Liu Lingyun, both due to job changes, affecting multiple funds under their management [4] Fund Manager Performance - Wang Zhe from Guolian Fund currently manages assets totaling 2.79 billion yuan, with a notable return of 105.96% on the Zhongyou Style Rotation Flexible Allocation Mixed Fund during his tenure [4] - Wan Minyuan from Rongtong Fund manages assets of 5.63 billion yuan, achieving a return of 158.96% on the Rongtong Health Industry Flexible Allocation Mixed Fund over his 9-year tenure [5] Fund Research Activity - In the past month, Bosera Fund conducted the most company research, engaging with 150 listed companies, followed by Jiashi Fund (143 companies) and Huaxia Fund (117 companies) [7] - The medical device industry was the most researched sector, with 692 instances, followed by the chemical products industry with 628 instances [7] Recent Company Focus - The most researched stock in the past month was Mindray Medical, with 98 fund management companies participating in the research, followed by Tianfu Communication and Yidong Electronics [9] - In the past week (September 1 to September 8), the most researched company was Lianqi Technology, with 66 fund institutions involved [8]