Group 1 - The medical beauty sector experienced a rise of 3.39% on September 5, with Ai Meike leading the gains [1] - The Shanghai Composite Index closed at 3812.51, up 1.24%, while the Shenzhen Component Index closed at 12590.56, up 3.89% [1] - Major stocks in the medical beauty sector showed varied performance, with Ai Meike closing at 190.83, up 3.67%, and Huaxi Biological closing at 57.14, up 3.23% [1] Group 2 - The medical beauty sector saw a net inflow of 36.38 million yuan from institutional investors, while retail investors experienced a net outflow of 44.71 million yuan [1] - The trading volume for Ai Meike was 45,900 hands, with a transaction amount of 858 million yuan [1] - The stock performance of other companies in the sector included *ST Meigu, which closed at 3.17, up 0.63%, and Jinbo Biological, which closed at 302.39, down 0.86% [1]