In the past 5 trading days (November 18 to November 22), about 231 companies in the two markets were surveyed. The types of research institutions showed that securities companies surveyed a total of 200 companies, that is, 86.58% of the listed company research activities involved securities companies; 148 fund companies were surveyed, ranking third; and 72 companies were surveyed by Sunshine Private Equity institutions, ranking third. In the institutional research list, a total of 40 companies were surveyed by more than 20 institutions. Tiannai Technology received the most attention, with 121 institutions participating in the survey; Superstar Agriculture and Animal Husbandry was surveyed by 87 organizations, ranking second in the list; Tom Cat and IFF were surveyed by 84 and 74 organizations respectively.