Huan Qiu Wang·2025-09-29 01:54Group 1 - As of September 28, 154 public fund institutions participated in A-share market research activities, covering 28 industries and involving 605 listed companies with a total of 4,275 research instances [1] - From September 1 to 28, 70 listed companies saw stock price increases exceeding 20%, with 19 companies experiencing gains over 40%. The mechanical equipment sector stood out, with World achieving a remarkable increase of 113.77%, attracting attention from 30 public fund institutions [3] - During the same period, 44 listed companies were researched by public fund institutions at least 20 times, with Crystal Machine Electric leading with 81 instances of research [3] Group 2 - The research activities of public fund institutions were primarily concentrated in 18 industries, with the mechanical equipment sector being the most focused, involving 90 listed companies. Key companies included Huichuan Technology, Zoomlion, and Jepter [4] - The electronics sector ranked second, with 83 listed companies and a total of 702 research instances, highlighting companies like Shenzhen South Circuit, Jingchen Co., and Juguang Technology as focal points [4] - Other industries with high research activity included electric power equipment, pharmaceuticals, and basic chemicals [4]