化工ETF(159870)涨近4%，盘中净申购7.37亿份

Group 1 - The chemical sector experienced a strong rally with significant capital inflow, as evidenced by the net subscription of 737 million units in the chemical ETF (159870) [1] - The primary driver for the recent price increase in disperse dyes is the surge in the price of upstream key intermediates, which rose from 25,000 yuan/ton to 38,000 yuan/ton, an increase of over 50% [1] - The price of intermediates accounts for 20%-30% of the production cost of dyes, and the rigid price increase is directly transmitted to downstream dye products [1] Group 2 - The China Securities Sub-Industry Chemical Theme Index (000813) rose by 3.68%, with significant gains in constituent stocks such as Hongda Co., which increased by 9.02%, and Zhejiang Longsheng, which rose by 5.91% [1] - The top ten weighted stocks in the China Securities Sub-Industry Chemical Theme Index account for 44.82% of the index, including companies like Wanhua Chemical and Salt Lake Co. [2] - The chemical ETF (159870) increased by 3.98%, with the latest price reported at 0.89 yuan [1][2]