Group 1 - The medical beauty sector increased by 0.4% on January 12, with Ai Meike leading the gains [1] - The Shanghai Composite Index closed at 4165.29, up 1.09%, while the Shenzhen Component Index closed at 14366.91, up 1.75% [1] - The trading volume and turnover for Ai Meike were 44,900 shares and 6.76 billion yuan, respectively [1] Group 2 - The net outflow of main funds in the medical beauty sector was 50.50 million yuan, while retail funds saw a net inflow of 24.49 million yuan [1] - The detailed fund flow for individual stocks showed significant net outflows for *ST Meigu and Jinbo Biological, with net outflows of 7.42 million yuan and 39.56 million yuan, respectively [2] - Ai Meike experienced a net outflow of 34.20 million yuan from main funds, indicating a 5.06% decrease in net shareholding [2]