【导读】纽约 COMEX 铜暴跌超20%，创下有记录以来最大单日跌幅 中国基金报记者 安曼 特朗普的关税 " 回旋镖 "重创纽约铜价 。 7 月 31 日晚间，纽约 COMEX 铜开盘直线下 挫，暴跌超 20% 。截至发稿，下跌近 22% ，创下有记录以来最大单日跌幅。 | < W | COMEX铜 | | | --- | --- | --- | | | HG.CMX | | | 4.3780 | 昨结 开盘 4.6400 | | | -1.2090 | 7.74万 现手 3 -21.63% | | | 最高价 | 4.6520 持 仓 9.6972万 外 盘 3.7636万 | | | 最低价 | 4.3330 增 仓 -4638 内 盘 3.9776万 | | | 分时 | 五日 日K 周K 月K 更多 ◎ | | | 叠加 | 盘口 | | | 6.8390 | 22.43% 卖1 4.3790 | 1 | | | 买1 4.3780 | 2 | | | 09:44 4.3795 09:44 4.3800 | 7 2 | | 5.5860 | 09:44 4.3800 0.00% | 2 | | | 0 ...

Group 1 - The core viewpoint of the articles highlights a significant drop in New York COMEX copper prices, which fell over 20%, marking the largest single-day decline on record due to unexpected tariff policies announced by the White House [1] - The U.S. government announced a 50% tariff on imported semi-finished copper products effective August 1, while exempting refined copper and scrap copper, leading to market confusion and a sharp sell-off [1] - Analysts describe the impact of the tariff announcement as "earthquake-level," indicating severe consequences for those who had already shipped copper to the U.S. [1] Group 2 - The price difference between COMEX and LME copper has narrowed to 2%-3%, suggesting potential for re-export of copper from the U.S. if the market conditions allow [2] - If U.S. copper is re-exported, it could exacerbate a temporary oversupply situation, putting additional downward pressure on copper prices [2]