In the 34th week of 2026, the textile commodity market presented a rare 'hot middle, cold ends' pattern: polyester filament yarns collectively rose, while acrylonitrile and PTA led declines. According to business society monitoring data, the average weekly change in the textile sector was only 0.03%, but the divergence within the list was far more significant than the surface calm. Polyester POY rose 2.00% to 8767.50 CNY/ton, DTY and FDY gained 1.76% and 1.70% respectively, while acrylonitrile plunged 4.46% to 11433.33 CNY/ton and PTA fell 3.67% to 6213.25 CNY/ton. This opposite movement within the same sector is not random; it directly reflects supply-demand mismatches in the upstream and downstream of the industrial chain.
The Logic Behind Price Increases: Strong Reality and Strong Expectations in the Polyester Chain
The collective rise in polyester filament yarn prices primarily stems from rigid downstream demand. This week, POY, DTY, and FDY rose 24.25%, 21.66%, and 21.81% year-on-year respectively, far exceeding other varieties. This indicates that the price increase is not short-term speculation but a result of tightening supply-demand dynamics over the past year. Feedback from industrial belts shows that weaving enterprises in Jiangsu and Zhejiang maintain high operating rates, sustaining rigid procurement of polyester filament yarn. Particularly, POY, as the main raw material for the texturing process, saw a 2% weekly increase, suggesting strong restocking intentions from DTY plants, forming a positive feedback loop along the chain.
Notably, polyester staple fiber fell 0.96% to 7744.82 CNY/ton, diverging from filament yarn. This implies that downstream apparel fabric demand favors filament products, while staple fiber segments like home textiles and nonwovens may face temporary weakness. For buyers, this means that among similar chemical fiber raw materials, bargaining space has diverged significantly; procurement windows must be precisely targeted based on product structure.
The Truth Behind Declines: The Pain of Capacity Cycles in Upstream Feedstocks
Acrylonitrile's 4.46% weekly drop made it the biggest loser, yet its year-on-year gain of 44.12% is highly signal. Acrylonitrile's earlier excessive gains attracted massive new capacity, but downstream demand from acrylic fiber and ABS has not kept pace, leading to temporary oversupply. PTA's 3.67% decline similarly stems from capacity release—new domestic PTA units have been commissioned intensively, coupled with fluctuating polyester operating rates, transmitting inventory pressure to prices.
On a deeper level, upstream feedstock declines are reshaping profit distribution across the chain. Lower PTA and acrylonitrile prices should theoretically reduce production costs for polyester and acrylic, but this week polyester filament rose instead, indicating that midstream pricing power is strengthening. For weaving factories, this means lower raw material cost pressure, but whether it translates into profit depends on the price pass-through ability of finished fabrics. Exporters should be wary: if upstream prices fall while downstream rises, overseas clients may demand renegotiation, making price adjustment clauses in contracts a key bargaining point.
Event Landing: From Weekly Data to Medium-term Trends
Placing this week's data in a longer cycle, three certain trends emerge. First, the polyester chain's prosperity is sustainable; POY, DTY, and FDY have year-on-year gains exceeding 20%, and weekly momentum remains strong, suggesting continued strength in coming weeks. Second, acrylonitrile's decline may just be beginning; new capacity is still being commissioned, and the price-finding process may extend into Q4. Third, moderate rises in viscose staple fiber and rayon yarn (+0.42% and +0.69%) indicate stability in regenerated cellulose fibers, serving as a hedging option for buyers.
These trends have clear practical implications: polyester filament procurement should avoid chasing highs; consider quarterly contracts to lock in prices. Acrylic fiber plants downstream of acrylonitrile can delay purchases, awaiting price stabilization signals. Cotton yarn prices remained flat (21S and 32S unchanged) against a slight rise in cotton (0.06%), implying squeezed margins in spinning; mills need to hedge risk through product upgrades or futures.