设置预警

日期	收盘价	涨跌幅	成交量
2026-09-16	4887.0	-1.03%	1,547,420
2026-09-16	4895.0	-0.87%	1,464,829
2026-09-16	4898.0	-0.81%	1,399,280
2026-09-16	4890.0	-0.97%	1,307,339
2026-09-16	4890.0	-0.97%	1,307,339
2026-09-16	4890.0	-0.97%	1,307,339
2026-09-16	4890.0	-0.97%	1,307,339
2026-09-16	4890.0	-0.97%	1,306,402
2026-09-16	4904.0	-0.69%	1,183,062
2026-09-16	4896.0	-0.85%	1,032,585
2026-09-16	4892.0	-0.93%	967,004
2026-09-16	4892.0	-0.93%	808,971
2026-09-16	4840.0	-1.98%	564,661
2026-09-15	4846.0	-3.14%	2,100,384
2026-09-15	4857.0	-2.92%	1,961,421
2026-09-15	4862.0	-2.82%	1,816,290
2026-09-15	4877.0	-2.52%	1,666,485
2026-09-15	4877.0	-2.52%	1,666,485
2026-09-15	4877.0	-2.52%	1,666,485
2026-09-15	4877.0	-2.52%	1,666,485
2026-09-15	4875.0	-2.56%	1,665,758
2026-09-15	4868.0	-2.70%	1,518,902
2026-09-15	4910.0	-1.86%	1,224,977
2026-09-15	4945.0	-1.16%	1,098,487
2026-09-15	4981.0	-0.44%	940,921
2026-09-15	5020.0	+0.34%	732,773
2026-09-14	4953.0	-2.60%	2,001,656
2026-09-14	4969.0	-2.28%	1,880,043
2026-09-14	4960.0	-2.46%	1,790,211
2026-09-14	4976.0	-2.14%	1,633,426

品种	最新价	涨跌幅	成交量
乙二醇 EG	6145.0	+3.14%	2,522,360
玻璃 FG	908.0	-1.52%	1,043,571
塑料 L	8585.0	+0.20%	753,804
甲醇 MA	3053.0	+0.96%	807,180
聚丙烯 PP	8988.0	+0.95%	902,098
纯碱 SA	1011.0	-0.69%	1,035,128
PTA TA	6556.0	+1.86%	2,080,678

PVC（聚氯乙烯）是大连商品交易所上市品种。PVC主要用于管材型材（占比约50%，建筑排水管、门窗）和薄膜。电石法是中国PVC的主流工艺路线（占比约80%），电石价格和电力成本是PVC的核心成本变量。PVC需求与房地产开工高度相关（管材用于建筑安装），因此PVC被视为黑色的延伸品种——螺纹钢的远端替代需求指标。

乙二醇 6145.0 玻璃 908.0 塑料 8585.0 甲醇 3053.0 聚丙烯 8988.0 纯碱 1011.0 PTA 6556.0