机构调研周跟踪：机构关注度环比回升：机械设备、电子、环保

Group 1 - The report indicates that the institutional research focus has shifted towards the machinery, electronics, and environmental protection sectors, with an increase in research activity noted [2][3][12] - Weekly data shows a decline in total research counts across the A-share market, with the total number of research instances at 174, significantly lower than the 341 instances recorded in the same week of 2024 [13][19] - Monthly data for December shows a total of 1,652 research instances, which is higher than the 1,590 instances in December 2024, indicating a relative increase in research activity [20][23] Group 2 - Specific companies such as Boying Welding, Chaojie Co., and Ice Wheel Environment have garnered significant market attention, with Boying Welding receiving 5 research instances and Chaojie Co. receiving 4 in the last week [28][29][32] - Chaojie Co. has reported a 34.49% year-on-year increase in revenue and an 11.52% increase in net profit attributable to shareholders for the first three quarters of 2025, highlighting its growth potential in the automotive parts sector [32][33] - The report notes that the research interest in environmental protection, steel, and petroleum sectors has increased year-on-year, reflecting changing market dynamics [21][27]