化工ETF(159870)盘中净申购3.61亿份，12月PPI环比涨幅扩大，连续3个月上涨

Group 1 - The core viewpoint of the news is that the Producer Price Index (PPI) for industrial products decreased by 1.9% year-on-year in December 2025, with a narrowing decline of 0.3 percentage points compared to the previous month, while showing a month-on-month increase of 0.2%, marking three consecutive months of increase [1] - The PPI's month-on-month growth has expanded, and the year-on-year decline has narrowed, indicating price recovery in industries related to "anti-involution" such as coal, cement, and new energy vehicle manufacturing, with non-ferrous industries continuing to rise due to input factors [1] - As of January 9, 2026, the CSI Sub-Industry Chemical Theme Index (000813) rose by 0.12%, with significant increases in constituent stocks such as Jinfat Technology (600143) up by 9.99% and Xinjubang (300037) up by 4.63% [1] Group 2 - As of December 31, 2025, the top ten weighted stocks in the CSI Sub-Industry Chemical Theme Index (000813) include Wanhua Chemical (600309), Yanhua Co. (000792), and Cangge Mining (000408), with these stocks collectively accounting for 45.31% of the index [2] - The Chemical ETF (159870) closely tracks the CSI Sub-Industry Chemical Theme Index, which consists of seven sub-indices, selecting larger and more liquid listed company securities to reflect the overall performance of the related sub-industries [1][3]