光学光电子板块12月23日跌0.42%，华体科技领跌，主力资金净流出8.89亿元

Group 1 - The optical optoelectronics sector experienced a decline of 0.42% compared to the previous trading day, with Huati Technology 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] Group 2 - In terms of capital flow, the optical optoelectronics sector saw a net outflow of 889 million yuan from main funds, while retail investors contributed a net inflow of 972 million yuan [2] - Speculative funds experienced a net outflow of approximately 83.06 million yuan [2]