Group 1 - The core stock price of Chengyitong closed at 21.39 yuan on August 11, with a slight increase of 0.04 yuan from the previous trading day [1] - The trading volume for the day was 305,876 hands, with a total transaction amount of 657 million yuan, and the stock experienced a fluctuation of 5.71% [1] - Chengyitong operates in the general equipment manufacturing industry, focusing on smart manufacturing and biomedical sectors, with products including automation control systems and medical rehabilitation equipment [1] Group 2 - On the morning of August 11, Chengyitong's stock experienced a rapid decline, dropping over 2% within five minutes, reaching a low of 20.81 yuan before recovering slightly by the end of the day [1] - The net outflow of main funds on that day was 39.62 million yuan, with a cumulative net outflow of 98.78 million yuan over the past five trading days [1]