Group 1 - In the past month (from May 21 to June 20), 40 companies listed on the Beijing Stock Exchange (BSE) were investigated by institutions, with Vision Intelligence being the most notable, receiving attention from 42 institutions [1] - The types of institutions conducting the research include 37 brokerages, 23 funds, 19 private equity firms, 10 insurance companies, and 5 overseas institutions [1] - The companies that received the most attention after Vision Intelligence include Tongli Co., Keda Control, and Juneng Co., with 41, 40, and 40 institutions participating in their investigations, respectively [1] Group 2 - The most frequently investigated companies include Vision Intelligence, Deyuan Pharmaceutical, and Weimao Electronics, each receiving two rounds of institutional research [2] - The average stock price of the investigated BSE companies fell by 7.51% over the past month, with only 5 companies experiencing price increases, notably Yishijingmi, Ruichi Intelligent Manufacturing, and Beiyikang, which rose by 23.32%, 13.27%, and 9.11%, respectively [2] - The average market capitalization of all BSE companies is 2.934 billion yuan, while the average market capitalization of the investigated companies is 3.520 billion yuan, with the highest market caps belonging to Airong Software, Xingtou Measurement and Control, and Tongli Co. [2] Group 3 - A detailed list of companies investigated includes Vision Intelligence (42 institutions, 2 investigations, latest closing price 26.14 yuan, price change -8.83%), Tongli Co. (41 institutions, 1 investigation, latest closing price 20.54 yuan, price change -6.12%), and Keda Control (40 institutions, 1 investigation, latest closing price 27.61 yuan, price change -3.93%) [2][3] - Other notable companies include Yishijingmi (23 institutions, 1 investigation, latest closing price 22.00 yuan, price change 23.32%) and Airong Software (22 institutions, 1 investigation, latest closing price 56.00 yuan, price change -6.27%) [2][3]