Group 1 - The chemical fiber sector experienced a slight increase of 0.11% on January 7, with Jilin Carbon Valley leading the gains [1] - The Shanghai Composite Index closed at 4085.77, up 0.05%, while the Shenzhen Component Index closed at 14030.56, up 0.06% [1] - Notable gainers in the chemical fiber sector included Jilin Qigu, which rose by 5.63% to a closing price of 18.02, and Taihe New Materials, which increased by 4.46% to 11.71 [1] Group 2 - The chemical fiber sector saw a net outflow of 214 million yuan from main funds, while retail funds had a net inflow of 25.27 million yuan [2] - The trading volume for Jilin Qigu was 281,000 shares, with a transaction value of 497 million yuan, indicating strong investor interest [1][2] - The overall market sentiment reflected mixed performances, with some stocks like Sanfangxiang and Haiyang Technology experiencing declines of 6.20% and 4.10%, respectively [2] Group 3 - Main fund inflows were observed in stocks like Xinxiang Chemical Fiber, which had a net inflow of 36.42 million yuan, and Nanjing Chemical Fiber with 16.69 million yuan [3] - Retail investors showed a negative sentiment towards several stocks, with significant outflows from Xinxiang Chemical Fiber and Nanjing Chemical Fiber, indicating potential concerns among smaller investors [3] - The overall trading dynamics suggest a cautious approach among investors, with main funds favoring certain stocks while retail investors exhibited mixed reactions [3]