Perdana Bangun Pusaka is trading at IDR 1,340, -6.29%, with broader Indonesian market weakness the likeliest context for the October 20 decline; no company-specific catalyst was confirmed.
- The IDX Composite fell 5.2% in early October 19 trading amid concerns over MSCI’s proposed downgrade and rising oil prices; its reported closing loss was 3.89%.
- KONI was among 80 high-share-concentration stocks targeted for IHSG-calculation exclusion; the policy had no effective date, so this does not establish a direct cause.