体育板块12月23日跌3.31%，中体产业领跌，主力资金净流出5160.83万元

Group 1 - The sports sector experienced a decline of 3.31% compared to the previous trading day, with Zhongti Industry leading the drop [1] - On the same day, the Shanghai Composite Index closed at 3919.98, up 0.07%, while the Shenzhen Component Index closed at 13368.99, up 0.27% [1] - A detailed table of individual stock performance within the sports sector is provided [1] Group 2 - In terms of capital flow, the sports sector saw a net outflow of 51.6083 million yuan from main funds, while retail investors contributed a net inflow of 55.9039 million yuan [2] - The net outflow from speculative funds was 4.2957 million yuan [2] - A detailed table of capital flow for individual stocks in the sports sector is included [2]