Bumi Resources Minerals is trading 6.78% down at IDR 550.00, amid broad Indonesian market and sector weakness. - On October 1, 2026, the IHSG fell 1.02%, while the basic-materials sector dropped 1.91%. - BRMS was named among large-cap stocks weighing on the index, but reporting identified no BRMS-specific cause or clear company-specific catalyst. - Evidence points to market and sector pressure rather than a confirmed company event.