On June 5, Southern Copper declined 4.83% in regular trading, trading at $180.59/share, with trading volume of $48.76 million. The copper sector experienced a broad selloff, with all major peers posting steep losses.

On the news front, a sharp surge in US COMEX copper inventories has pressured copper prices, triggering sector-wide weakness. Freeport-McMoRan fell 6.28%, Ero Copper dropped 7.77%, and Taseko Mines declined 8.06%, all exceeding Southern Copper's losses. The inventory buildup reflects ongoing speculative positioning ahead of the US Commerce Department's June 30 deadline to submit its copper tariff assessment report to the White House, with traders accelerating shipments to US warehouses to capture cross-market arbitrage opportunities.

Southern Copper had previously rebounded above $198 on supply disruption support — including Peru's energy crisis reducing monthly mine output by approximately 20,000 tons and Indonesia's Grasberg full restart delayed to early 2028. However, short-term inventory pressure and deteriorating market sentiment have caused the stock to rapidly retrace those gains.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)