医疗美容板块12月31日跌0.07%，*ST美谷领跌，主力资金净流出622.09万元

Group 1 - The medical beauty sector experienced a slight decline of 0.07% compared to the previous trading day, with *ST Meigu leading the drop [1] - On the same day, the Shanghai Composite Index closed at 3968.84, reflecting a modest increase of 0.09%, while the Shenzhen Component Index closed at 13525.02, showing a decrease of 0.58% [1] - The net capital outflow from the medical beauty sector amounted to 6.22 million yuan, while retail investors contributed a net inflow of 2.82 million yuan [1] Group 2 - The main capital flow in the medical beauty sector indicated a net outflow of 6.22 million yuan from institutional investors, contrasted by a net inflow of 3.40 million yuan from speculative funds [1] - The overall capital flow within the medical beauty sector showed a mixed trend, with retail investors contributing positively [1]