In the past 5 trading days (from September 26th to October 9th), approximately 193 companies were surveyed by institutions in both markets. According to the types of survey institutions, securities companies conducted surveys on a total of 166 companies, with securities companies participating in 86.01% of the listed company surveys. Fund companies surveyed 135 companies, ranking second; Sun private equity institutions surveyed 79 companies, ranking third. In the institutional survey rankings, a total of 52 companies were surveyed by more than 20 institutions. Centre Testing International Group attracted the most attention, with 209 institutions participating in the survey; Jiuhao Corporation was surveyed by 156 institutions, ranking second on the list; Maivet Biology, Shanghai Wanye Enterprises, and others were surveyed by 147, 145 institutions respectively.