生物柴油板块12月23日跌1.47%，海新能科领跌，主力资金净流出3427.44万元

Group 1 - The biodiesel sector experienced a decline of 1.47% compared to the previous trading day, with Hai Xin Energy 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] - The net capital outflow from the biodiesel sector amounted to 34.27 million yuan, while retail investors saw a net inflow of 11.82 million yuan [1] Group 2 - The main capital flow in the biodiesel sector showed a net outflow of 34.27 million yuan from institutional investors, with a net inflow of 22.45 million yuan from speculative funds [1] - The detailed capital flow for individual stocks in the biodiesel sector is provided in the accompanying table [1]