Group 1 - The stock price of Sanbo Brain Science closed at 66.16 yuan on August 19, 2025, down 1.02% from the previous trading day, with a trading volume of 1.576 billion yuan [1] - The stock experienced significant volatility, with a fluctuation range of 6.18% after a quick rebound in the morning followed by a pullback [1] - Sanbo Brain Science operates in the medical services sector, focusing on brain-related medical fields, including diagnosis, treatment, and rehabilitation services, aiming to provide precise medical solutions [1] Group 2 - On August 19, 2025, the net outflow of main funds for Sanbo Brain Science was 45.8035 million yuan, with a cumulative net outflow of 333 million yuan over the past five days, indicating a short-term trend of capital outflow [1]