Antam is trading 4.1% lower at IDR 3,050, possibly reflecting a broader Indonesian market reversal; a direct link is unconfirmed. - On October 12, Indonesian shares reversed early gains as selling hit infrastructure, energy and basic-materials stocks; IHSG fell 1.01% mid-morning. - Antam led LQ45 gainers at the open; no verified Antam-specific announcement explains the drop. - Gold and Antam buyback prices were higher that day; research cited nickel as a profit driver, neither establishing a cause.