海洋经济板块12月23日跌1.08%，三维通信领跌，主力资金净流出17.91亿元

Group 1 - The marine economy sector experienced a decline of 1.08% compared to the previous trading day, with Sanwei Communication leading the drop [1] - On the same day, the Shanghai Composite Index closed at 3919.98, reflecting a slight increase of 0.07%, while the Shenzhen Component Index closed at 13368.99, up by 0.27% [1] - The net capital outflow from the marine economy sector amounted to 1.791 billion yuan, with retail investors contributing a net inflow of 1.808 billion yuan [1] Group 2 - The data regarding the capital flow in the marine economy sector indicates a net outflow of 16.8511 million yuan from speculative funds [1] - A detailed table of individual stock capital flows within the marine economy sector was provided, highlighting the varying performance of stocks [1]