In the past five trading days (from November 15th to November 21st), approximately 200 companies in both markets were surveyed by institutions. The types of surveying institutions showed that securities companies surveyed 174 companies, accounting for 87.00% of the surveyed activities of listed companies with the participation of securities companies; fund companies surveyed 128 companies, ranking second; sunshine private placement institutions surveyed 76 companies, ranking third. In the list of institutional surveys, 46 companies received surveys from more than 20 institutions. Haitian Ruiton received the most attention, with 164 institutions participating in the survey; Huichuan Technology was surveyed by 147 institutions, ranking second on the list; zhejiang supcon technology, Lingyun Guang, etc. were surveyed by 115 and 109 institutions respectively.