Copper bulls are reassessing a rally built in part on the prospect of US tariffs. Expectations of import duties have drawn metal to the United States ahead of any policy change, but if tariffs do not materialize, those trade flows and the positions tied to them could reverse. With no clear progress on the policy, traders are becoming less confident that prices can keep climbing.
US premium draws copper away from other markets
For several months, New York copper futures have traded above the London Metal Exchange (LME) benchmark. The premium created an incentive for traders to ship copper to the US, making the trade profitable even before tariffs were imposed. In this way, tariff expectations have affected not only market sentiment but also the physical movement of metal between regions.
Continued US imports have reduced inventories elsewhere. Falling stocks have added to concerns about tighter supply and helped support LME prices, creating a cycle in which imports, inventory declines and rising prices reinforced one another. Last month, LME copper briefly reached a record high of nearly $15,000 a tonne.
Delayed tariffs put the rally's support to the test
Expectations of US duties have been one of the rally's key supports. As a decision remains elusive, investors are questioning whether copper shipped to the US in anticipation of tariffs, and the widening regional price gap, can continue to underpin prices if the policy is ultimately not enacted. Concern about a sharp pullback has also grown.
For copper traders, the next developments include not only whether tariffs are introduced, but how policy expectations affect the pace of US imports, the spread between New York and London prices, and inventories outside the US. So far, New York futures have remained at a premium to the LME benchmark, US imports have increased and overseas stocks have fallen. Whether tariffs will take effect remains unresolved, leaving the market to weigh the risk that the expectations behind the shift in copper flows may not become policy.