食品加工板块12月23日跌0.43%，盖世食品领跌，主力资金净流出4960.88万元

Group 1 - The food processing sector experienced a decline of 0.43% on December 23, with Gais Food leading the drop [1] - 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 in the food processing sector is provided [1] Group 2 - The food processing sector saw a net outflow of main funds amounting to 49.6088 million yuan, with retail funds showing a net inflow of 103 million yuan [2] - The net outflow from speculative funds was 53.1667 million yuan [2] - A detailed table of fund flows for individual stocks in the food processing sector is included [2]