短纤：高位震荡20260401，瓶片：高位震荡20260401瓶片

1. Report Industry Investment Rating - Not provided in the given content 2. Core Viewpoints of the Report - The short - fiber and bottle - chip markets are expected to have high - level oscillations on April 1, 2026 [1] - The trend intensity of short - fiber and bottle - chip is 0, indicating a neutral view on the day - session main - contract futures price fluctuations on the reporting day [2] 3. Summary by Relevant Catalogs 3.1 Fundamental Tracking Short - fiber - Futures prices of short - fiber contracts 2604, 2605, and 2606 decreased by 62, 102, and 146 respectively compared to the previous day [1] - The spread PF04 - 05 increased by 40, PF05 - 06 increased by 44, and the main - contract basis decreased by 88 [1] - The main - contract trading volume increased by 1607, and the main - contract open interest increased by 35631 [1] - The East China spot price decreased by 150, and the sales - to - production ratio decreased by 7% [1] Bottle - chip - Futures prices of bottle - chip contracts 2604, 2605, and 2606 decreased by 148, 136, and 120 respectively compared to the previous day [1] - The spread PR04 - 05 decreased by 12, PR05 - 06 decreased by 16, and the main - contract basis increased by 465 [1] - The main - contract trading volume increased by 7435, and the main - contract open interest decreased by 7104 [1] - The East China spot price increased by 345, and the South China spot price increased by 300 [1] 3.2 Spot News Short - fiber - The short - fiber futures dropped significantly, with the main - contract PF06 closing at 8246, a decline of 210 [2] - Factory quotes remained stable, with the mainstream price of semi - dull 1.4D at 8700 - 8900 yuan/ton [2] - Traders and futures - cash merchants increased discounts, and the mainstream price of semi - dull 1.4D was in the range of 8150 - 8700 [2] - Traders' transactions improved, while direct - spinning polyester staple fiber factories had weak sales, with an average sales - to - production ratio of 36% by 3:00 pm [2] Bottle - chip - Upstream raw materials fluctuated and declined, and polyester bottle - chip factories mostly lowered their quotes by 50 - 250 yuan [2] - The trading atmosphere in the polyester bottle - chip market rebounded slightly [2] - Orders from March to May were mostly traded at 8400 - 8750 yuan/ton ex - factory, with a small amount slightly lower at 8250 - 8350 yuan/ton ex - factory and some locally higher at around 8800 yuan/ton ex - factory [2]