Perdana Bangun Pusaka is trading 11.99% down at IDR 1,505, with no confirmed company-specific catalyst identified for October 16, 2026. - Recent coverage points to unusual trading and past exchange actions, not a new announcement explaining the decline. - Indonesia’s IHSG fell 1.33% on October 15, but that prior-session weakness does not establish the cause of this move. - No trading-volume figure was available in the sources reviewed.