医疗美容板块12月15日跌2.27%，锦波生物领跌，主力资金净流出4824.23万元

Group 1 - The medical beauty sector experienced a decline of 2.27% on December 15, with Jinbo Biological leading the drop [1] - The Shanghai Composite Index closed at 3867.92, down 0.55%, while the Shenzhen Component Index closed at 13112.09, down 1.1% [1] - A detailed table of individual stock performance in the medical beauty sector is provided [1] Group 2 - In terms of capital flow, the medical beauty sector saw a net outflow of 48.24 million yuan from main funds, while retail investors contributed a net inflow of 53.44 million yuan [2] - The net outflow from speculative funds was 5.20 million yuan [2] - A detailed table of capital flow for individual stocks in the medical beauty sector is included [2]