化妆品板块12月31日涨1.33%，水羊股份领涨，主力资金净流入5068.78万元

Group 1 - The cosmetics sector experienced a rise of 1.33% on December 31, with Shuiyang Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3968.84, up 0.09%, while the Shenzhen Component Index closed at 13525.02, down 0.58% [1] - Key stocks in the cosmetics sector showed varied performance, with Shuiyang Co., Ltd. closing at 23.84, up 9.56%, and Qingdao Kingking closing at 7.65, up 5.23% [1] Group 2 - The cosmetics sector saw a net inflow of 50.68 million yuan from institutional investors, while retail investors experienced a net outflow of 89.73 million yuan [2] - The stock performance of individual companies showed that Qingdao Kingking had a significant net outflow of 50.75 million yuan from institutional investors [3] - Shuiyang Co., Ltd. had a net inflow of 32.23 million yuan from institutional investors, indicating strong interest despite overall retail outflows [3]