Semen Indonesia joins LQ45 as Indosat and Bukit Asam enter IDX30
The revised index memberships will apply from 2 November 2026 to 29 January 2027, following the Indonesia Stock Exchange’s October review.
The Indonesia Stock Exchange will add Semen Indonesia (SMGR) to the LQ45 index and bring Indosat (ISAT) and Bukit Asam (PTBA) into the IDX30 following its major index review in October 2026. The exchange announced the changes on 26 October.
Semen Indonesia will replace Surya Citra Media (SCMA) in the LQ45. Its index weighting will be 0.36 per cent, with a free-float ratio of 48.01 per cent, according to the exchange’s announcement.
In the IDX30, Indosat will have a weighting of 0.93 per cent and a free-float ratio of 16.24 per cent. Bukit Asam’s weighting will be 1.17 per cent, with a free-float ratio of 32.76 per cent. Pertamina Geothermal Energy (PGEO) and Unilever Indonesia (UNVR) will leave the index.
Banking shares have the largest weightings in both indices. Among the LQ45’s 45 constituents, Bank Central Asia (BBCA) will account for 15.00 per cent, Bank Rakyat Indonesia (BBRI) for 14.99 per cent and Bank Mandiri (BMRI) for 10.76 per cent.
For the 30-stock IDX30, BBCA and BBRI will each carry a 15.00 per cent weighting, while BMRI will account for 12.93 per cent. The revised compositions will take effect on 2 November 2026 and remain applicable until 29 January 2027.
