The Indonesia Stock Exchange (IDX) has carried out an incidental review of the constituents of the LQ45 and IDX80 indexes. In this adjustment, several stocks, including MAPI, NCKL, PGEO and TKIM, are removed from index calculation.

Basis of the announcement and timing

Under IDX announcement No. Peng-00218/BEI.POP/11-2026 dated 11 November 2026, three stocks leave LQ45 and four leave IDX80. The constituent changes take effect on 18 November 2026 and run until 29 January 2027.

IDX Head of Trading Regulation and Operations Division Pande Made Kusuma Ari A. said the adjustment refers to Exchange Announcement No. Peng-00205/BEI.POP/10-2026 dated 27 October 2026 on the revised major evaluation of the LQ45 and IDX80 indexes. "The constituent changes to these indexes will take effect on 18 November 2026," he wrote in the official announcement on Wednesday (11/11/2026). The number of shares used to calculate both indexes will follow the latest constituent list in the announcement's attachment.

LQ45: three out, three in

The three stocks removed from LQ45 are PT Mitra Adiperkasa Tbk. (MAPI), PT Trimegah Bangun Persada Tbk. (NCKL) and PT Pertamina Geothermal Energy Tbk. (PGEO). As replacements, the IDX adds PT Erajaya Swasembada Tbk. (ERAA), PT Gudang Garam Tbk. (GGRM) and PT Pakuwon Jati Tbk. (PWON) to the 45-stock liquid index.

IDX80: four out, four in

In IDX80, the four stocks leaving are MAPI, NCKL, PGEO and PT Pabrik Kertas Tjiwi Kimia Tbk. (TKIM). The four new constituents are PT Central Omega Resources Tbk. (DKFT), PT Impack Pratama Industri Tbk. (IMPC), PT PAM Mineral Tbk. (NICL) and PT RMK Energy Tbk. (RMKE).

Weights of the new stocks

According to the attachment to the incidental review, ERAA carries a weight of 0.25% in LQ45, GGRM 0.41% and PWON 0.32%. In IDX80, IMPC has the largest weight among the four newcomers at 0.70%, followed by RMKE at 0.23%, DKFT at 0.10% and NICL at 0.06%.

The IDX also adjusted the weights of several stocks that remain constituents. In LQ45, the weight of PT Bank Central Asia Tbk. (BBCA) rises from 15.84% to 15.86%, while PT Bank Rakyat Indonesia (Persero) Tbk. (BBRI) rises from 15.04% to 15.06%. In IDX80, BBCA's weight rises from 9.68% to 9.72% and BBRI's from 9.19% to 9.23%.

Share counts could change again

The share-count adjustments used in index calculation may also change on the effective date if corporate actions occur before then, such as stock splits, reverse stock splits, new share issuance through pre-emptive rights (HMETD), bonus shares or stock dividends.

This article is not an invitation to buy or sell shares. Investment decisions rest entirely with the reader.

Sources

• BEI Rombak Konstituen LQ45 dan IDX80, Ini Daftar Saham yang Masuk dan Keluar — Bisnis.com, 11 November 2026. https://market.bisnis.com/read/20261111/7/2020545/bei-rombak-konstituen-lq45-dan-idx80-ini-daftar-saham-yang-masuk-dan-keluar