8月31日14时：全国豆粕基差多数为负，防城港最低

[ { "event_id": "mysteel-cn-20260831-national-basis", "title": "全国豆粕基差多数为负，防城港-180 最低", "event_time_utc": null, "event_time_quality": "day_only", "published_at_utc": "2026-08-31T05:43:00Z", "event_type": "spot_basis", "asset_keys": [ "SOYMEAL_ETF" ], "direction_score": -1, "confidence": 92, "horizon": "days", "raw_facts": { "统计日": "2026-08-31", "指标": "全国主要市场豆粕基差", "单位": "元/吨", "区域极值": { "广西防城港": -180, "山东日照": -170, "陕西西安": 40 }, "较前一交易日": { "大连": "+30", "东莞": "+30", "昆明": "-10", "长春": "-10", "成都": "持平", "天津": "持平" }, "整体特征": "多数地区基差为负，变动幅度有限，呈小幅震荡" }, "transmission_chain": [ "全国主要市场豆粕基差多数为负，广西防城港-180 元/吨、山东日照-170 元/吨，陕西西安以 40 元/吨居区域高位", "负基差分布显示现货相对盘面的升贴水整体偏弱，尽管大连和东莞较前一交易日各上升 30 元/吨，豆粕 ETF 短线方向轻度偏负" ], "invalidation_conditions": [ "后续全国主要市场基差由负转正并在多个区域持续", "防城港和日照等低基差市场连续收窄，且大连、东莞的上升变化继续扩大" ], "source_urls": [ "[https://ncp.[m.mysteel.com/a/26083113/C60FA0AC01DBDD86_abc.html](https://ncp.m.mysteel.com/a/26083113/C60FA0AC01DBDD86_abc.html)](https://m.mysteel.com/a/26083113/C60FA0AC01DBDD86_abc.html](https://ncp.m.mysteel.com/a/26083113/C60FA0AC01DBDD86_abc.html))" ], "source_tier": "B" } ]