设置预警

日期	收盘价	涨跌幅	成交量
2026-10-30	5293.0	+0.46%	1,802,365
2026-10-30	5320.0	+0.97%	1,646,520
2026-10-30	5315.0	+0.87%	1,510,026
2026-10-30	5281.0	+0.23%	1,314,465
2026-10-30	5281.0	+0.23%	1,314,465
2026-10-30	5281.0	+0.23%	1,314,465
2026-10-30	5281.0	+0.23%	1,314,465
2026-10-30	5283.0	+0.27%	1,314,172
2026-10-30	5285.0	+0.30%	1,254,046
2026-10-30	5297.0	+0.53%	1,136,272
2026-10-30	5307.0	+0.72%	1,072,810
2026-10-30	5294.0	+0.47%	850,252
2026-10-30	5278.0	+0.17%	671,179
2026-10-29	5299.0	+1.67%	1,591,526
2026-10-29	5311.0	+1.90%	1,455,473
2026-10-29	5283.0	+1.36%	1,249,890
2026-10-29	5235.0	+0.44%	1,075,292
2026-10-29	5235.0	+0.44%	1,075,292
2026-10-29	5235.0	+0.44%	1,075,292
2026-10-29	5235.0	+0.44%	1,075,292
2026-10-29	5238.0	+0.50%	1,074,847
2026-10-29	5258.0	+0.88%	960,207
2026-10-29	5245.0	+0.63%	829,551
2026-10-29	5236.0	+0.46%	785,233
2026-10-29	5234.0	+0.42%	711,454
2026-10-29	5271.0	+1.13%	529,668
2026-10-28	5266.0	+3.28%	2,036,162
2026-10-28	5257.0	+3.10%	1,890,452
2026-10-28	5225.0	+2.47%	1,778,565
2026-10-28	5208.0	+2.14%	1,659,881

品种	最新价	涨跌幅	成交量
乙二醇 EG	5391.0	+2.98%	1,915,897
玻璃 FG	866.0	+1.64%	1,235,855
塑料 L	9556.0	+2.18%	958,733
甲醇 MA	3480.0	+1.43%	3,291,806
聚丙烯 PP	10433.0	+1.30%	1,547,107
纯碱 SA	967.0	-0.82%	1,416,625
PTA TA	6686.0	+0.12%	1,832,743

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 5391.0 玻璃 866.0 塑料 9556.0 甲醇 3480.0 聚丙烯 10433.0 纯碱 967.0 PTA 6686.0