医疗美容板块10月20日跌0.94%，锦波生物领跌，主力资金净流出4123.39万元

Group 1 - The medical beauty sector experienced a decline of 0.94% on October 20, with Jinbo Biological leading the drop [1] - The Shanghai Composite Index closed at 3863.89, up 0.63%, while the Shenzhen Component Index closed at 12813.21, up 0.98% [1] - Major stocks in the medical beauty sector showed mixed performance, with *ST Meigu closing at 3.51, up 1.45%, and Jinbo Biological at 261.00, down 3.45% [1] Group 2 - The net outflow of main funds in the medical beauty sector was 41.23 million yuan, while retail investors saw a net inflow of 57.45 million yuan [1] - Specific stock fund flows indicated that *ST Meigu had a net inflow of 0.75%, while Huaxi Biological and Aimeike experienced net outflows of 8.64% and 6.24%, respectively [2]