农产品加工板块12月15日涨3.16%，中粮糖业领涨，主力资金净流入1.76亿元

Core Insights - The agricultural processing sector experienced a significant increase of 3.16% on December 15, with COFCO Sugar leading the gains [1] - The Shanghai Composite Index closed at 3867.92, down 0.55%, while the Shenzhen Component Index closed at 13112.09, down 1.1% [1] Fund Flow Analysis - On the same day, the agricultural processing sector saw a net inflow of 176 million yuan from institutional investors, while retail investors experienced a net outflow of 62.366 million yuan [2] - The overall trend indicates that institutional investors are showing confidence in the agricultural processing sector, contrasting with the outflows from retail investors [2]