Group 1 - The stock price of Aipeng Medical reached 31.39 yuan, an increase of 2.13 yuan or 7.28% from the previous trading day [1] - The opening price was 29.95 yuan, with a highest point of 31.98 yuan and a lowest point of 29.41 yuan, resulting in a trading volume of 196,100 hands and a transaction amount of 600 million yuan [1] - Aipeng Medical operates in the medical device sector, focusing on pain management, nasal care, and minimally invasive medical products [1] Group 2 - On July 31, the National Healthcare Security Administration announced support for brain-computer interface technologies to enter clinical use and be charged, adding new fee items such as "brain-computer interface implantation fee" and "brain-computer interface adaptation fee" [1] - This policy directly benefits medical companies involved in brain-computer interface technology [1]