饲料板块1月15日涨0.13%，路德科技领涨，主力资金净流出1.16亿元

Group 1 - The feed sector experienced a slight increase of 0.13% on January 15, with Lude Technology leading the gains [1] - The Shanghai Composite Index closed at 4112.6, down 0.33%, while the Shenzhen Component Index closed at 14306.73, up 0.41% [1] - Key stocks in the feed sector showed varied performance, with Lude Technology closing at 17.62, up 1.91%, and Tangrenshen closing at 4.40, down 0.23% [1] Group 2 - The feed sector saw a net outflow of 116 million yuan from institutional investors, while retail investors contributed a net inflow of 116 million yuan [2] - The trading volume for Lude Technology was 27,000 hands, with a transaction amount of 46.9584 million yuan [1] - The stock performance of major companies included Hada Group with a closing price of 53.63, up 1.15%, and Petty Co. with a closing price of 18.75, down 2.09% [2][3] Group 3 - The net inflow from retail investors for TianKang Biological was 17.1 million yuan, while the net outflow from institutional investors was 18.4821 million yuan [3] - The net inflow for GuaiBao Pet was 6.3998 million yuan from institutional investors, while it faced a net outflow of 10.7891 million yuan from retail investors [3] - The overall sentiment in the feed sector indicates mixed investor behavior, with some stocks attracting retail interest while others faced institutional selling pressure [2][3]