In the past 5 trading days (September 27 to October 10), about 145 companies were surveyed by institutions. The types of institutions conducting surveys show that securities companies surveyed a total of 128 companies, with securities companies participating in 88.28% of the listed company surveys. Fund companies surveyed 109 companies, ranking second. Sunshine private equity institutions surveyed 65 companies, ranking third. In the institution survey list, a total of 48 companies were surveyed by more than 20 institutions together. Centre Testing International Group received the most attention, with 209 institutions participating in the survey; Jinzai Food Group was surveyed by 180 institutions, ranking second on the list; Ninth Company, Shanghai Wanye Enterprises, and others were surveyed by 156, 145 institutions respectively.