Over the past 5 trading days (September 6th to September 12th), about 234 companies in the two markets were surveyed by institutions. The types of surveying institutions show that securities companies surveyed 209 companies, accounting for 89.32% of the surveyed activities of listed companies with the participation of securities companies. Fund companies surveyed 143 companies, ranking second; and sunshine private equity institutions surveyed 95 companies, ranking third. In the list of institution surveys, 50 companies received surveys from more than 20 institutions. Desay SV Automotive received the most attention, with the participation of 225 institutions in the survey; Yahui Long was surveyed by 138 institutions, ranking second in the list; Jiangsu Changshu Rural Commercial Bank, Longqi Technology, etc., were surveyed by 116 and 106 institutions respectively.