短纤：震荡整理，多PF空PR，瓶片：震荡整理

Report Summary 1) Industry Investment Rating No industry investment rating is provided in the report. 2) Core Viewpoints - Short - fiber is expected to move in a range, with a strategy of going long on PF and short on PR recommended. Bottle chips are also expected to move in a range [1]. - Short - fiber futures fluctuate with raw materials, and the average sales - to - production ratio is 40%. Bottle chip factory quotes are mostly stable, and the market trading atmosphere is light [1][2]. 3) Summary by Directory Fundamental Tracking - Short - fiber: The price of short - fiber 2509 remained at 6380, short - fiber 2510 decreased by 14 to 6486, and short - fiber 2511 decreased by 44 to 6468. The spread PF09 - 10 increased by 14 to - 106, PF10 - 11 increased by 30 to 18. The short - fiber main contract's open interest increased by 32556 to 171800, and the trading volume decreased by 18789 to 138898. The short - fiber sales - to - production ratio decreased by 8% to 40%, and the East China spot price remained at 6535 [1]. - Bottle chips: The price of bottle chips 2509 decreased by 18 to 5818, bottle chips 2510 decreased by 20 to 5952, and bottle chips 2511 decreased by 6 to 5950. The spread PR09 - 10 increased by 2 to - 134, PR10 - 11 decreased by 14 to 2. The bottle chip main contract's open interest increased by 761 to 32115, and the trading volume decreased by 10121 to 50362. The East China spot price increased by 30 to 5890, and the South China spot price remained at 5960 [1]. Spot News - Short - fiber: Short - fiber futures fluctuate with raw materials. Factory quotes are stable, and traders offer discounts. Downstream demand is based on orders, and the average sales - to - production ratio is 40% as of 3:00 pm [1]. - Bottle chips: Upstream polyester raw material futures decline slightly. Factory quotes are mostly stable, and the trading atmosphere is light. Orders from September to November are mostly traded at 5880 - 5920 yuan/ton ex - factory [2]. Trend Intensity - The trend intensity of short - fiber and bottle chips is 0, indicating a neutral trend for the day - session main contract futures price fluctuations on the reporting day [3].