Buenaventura is trading 4.85% down now at $31.56 on September 28, 2026; precious-metals weakness is the clearest sector context, but a direct link is unconfirmed. - The market alert reported a 5.3% pre-market decline. - Reuters reported gold fell 2.7% and silver 4.3% as rising oil prices heightened inflation concerns and strengthened expectations of further Federal Reserve rate hikes; no new company-specific announcement explaining the move surfaced.