from the WSJ
Trump Just Crashed the Copper Market
U.S. copper futures plunged roughly 20% in late trading Wednesday after President Trump unveiled 50% tariffs on copper products but not on the raw material itself.
It is the latest example of how Trump’s gyrating trade policies have whipsawed financial markets. If Wednesday’s after-hours drop holds through Thursday’s session, it would mark copper’s biggest daily decline in records dating back to 1968, exceeding the 12% tumble on Oct. 20, 1987, after what is known as Black Monday, when a panic sent markets crashing.
U.S. copper prices
surged to records and well above global prices this month after Trump said he would impose a 50% import tax on the metal, which is used to make electronics, automobiles and in construction, where it is used to convey water in pipes and electricity in wires.
Traders and businesses raced to bring copper across the border ahead of the tariff and filled metals warehouses in Baltimore, New Orleans, Detroit and other storage hubs.
On Wednesday, ahead of the Aug. 1 effective date, the White House backed off taxing copper in its less processed forms, such as concentrate and cathodes,
as well as scrap and instead slapped the levy on copper products, such as wire, tubing and sheeting.
Link