聚烯烃日报：供需驱动偏弱，短期成本端主导波动-20251030

1. Report Industry Investment Rating - Unilateral: L, PP neutral; - Inter - term: L01 - L05 reverse spread; PP01 - PP05 reverse spread; - Inter - variety: None [3] 2. Core Viewpoints - PE: OPEC+ has a production increase plan, leading to an enhanced supply surplus expectation and weak demand. International oil prices have fallen, weakening cost - side support. Supply is expected to increase, and demand is limited. After the price drops to a low level, it will fluctuate in the short term, and the upside space may be limited. Attention should be paid to cost - side disturbances and macro - policy dynamics [2]. - PP: International oil prices have corrected, weakening oil - based cost support. There are still supply - demand contradictions, and short - term trends are still guided by the cost side. The supply - side pressure still exists, and demand is slowly recovering. The weak supply - demand fundamentals have not reversed, and the sustainability of price increases may be limited. Attention should be paid to the impact of geopolitical conflicts on the cost side and the start - stop situation of PDH marginal devices [2]. 3. Summary by Directory 3.1 Market News and Important Data - Price and basis: L main contract closed at 7009 yuan/ton (+24), PP main contract at 6685 yuan/ton (+28). LL North China spot was 6960 yuan/ton (-20), LL East China spot at 7060 yuan/ton (+0), PP East China spot at 6610 yuan/ton (+0). LL North China basis was - 49 yuan/ton (-44), LL East China basis at 51 yuan/ton (-24), PP East China basis at - 75 yuan/ton (-28) [1]. - Upstream supply: PE operating rate was 81.5% (-0.3%), PP operating rate was 75.9% (-2.3%) [1]. - Production profit: PE oil - based production profit was 382.3 yuan/ton (+110.9), PP oil - based production profit was - 307.7 yuan/ton (+110.9), PDH - based PP production profit was 54.5 yuan/ton (+45.3) [1]. - Import and export: LL import profit was - 16.3 yuan/ton (+20.7), PP import profit was - 295.4 yuan/ton (+10.4), PP export profit was - 16.6 US dollars/ton (-1.3) [1]. - Downstream demand: PE downstream agricultural film operating rate was 47.1% (+4.2%), PE downstream packaging film operating rate was 52.6% (+0.4%), PP downstream plastic weaving operating rate was 44.4% (+0.1%), PP downstream BOPP film operating rate was 61.4% (+0.2%) [1]. 3.2 Market Analysis - PE: Cost - side support weakens, supply is expected to increase, demand is limited, and short - term prices will fluctuate with limited upside space [2]. - PP: Cost - side support weakens, supply - demand contradictions remain, and the sustainability of price increases is limited [2]. 3.3 Strategy - Unilateral: Neutral for L and PP; - Inter - term: L01 - L05 reverse spread; PP01 - PP05 reverse spread; - Inter - variety: None [3]