COPX is trading at $81.66 (-3.25%) as chip-stock selling spilled into copper amid broader risk-off pressure. - Reuters reported copper lost ground amid semiconductor weakness as investors awaited September U.S. CPI. - Supply concerns include strike action at BHP’s Escondida and disruption at Codelco’s El Teniente; these risks have supported copper rather than explaining COPX’s decline. - Available evidence points to cross-market pressure, not a single miner earnings catalyst.