IDX Composite closes 5.7 percent higher after MSCI reforms
Published on 10/20/2026 at 22:58 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSRebound and policy watch
- IDX Composite ended at 5,278 points on October 20, 2026, up 282 points or 5.7 percent.
- IDX reforms target concentrated ownership and disclosure after an MSCI warning.
- MKNT led gainers with a 50.0 percent rise, while GTBO fell 9.9 percent.
- Bank Indonesia announces its rate decision on October 21, 2026, after a 5.75 percent rate.
The IDX Composite closed at 5,278 points on October 20, 2026, gaining 282 points or 5.7 percent. The rebound followed measures aimed at addressing MSCI concerns over Indonesia's market structure.
The Financial Services Authority reiterated its reform program after the close at 8:27 p.m. WIB. The measures include disclosure of shareholdings above 1 percent and excluding highly concentrated stocks from the index, ANTARA reported.
Why did the IDX Composite rebound?
The exchange's response to MSCI's proposed market reclassification supported the recovery. The IDX also adjusted lower auto-rejection rules to reduce trading volatility. The index had fallen more than 15 percent across the previous two sessions, IDNFinancials reported.
Analysts described the move as a technical rebound rather than confirmation of a lasting trend change. The exchange's planned removal of high-shareholding-concentration stocks remains central to the market's response, Kompas reported.
Winners and losers in the IDX Composite
Stock moves at the close were reported by Tempo:
- Mitra Komunikasi Nusantara up 50.0 percent
- Guna Timur Raya up 25.0 percent
- Garda Tujuh Buana down 9.9 percent
- Lancartama Sejati down 9.2 percent
All sectoral indexes advanced, led by transportation with an 8.6 percent gain and basic materials with a 6.6 percent rise. Advancers outnumbered decliners 694 to 111, with 33 unchanged stocks, IDNFinancials reported.
What comes next for the IDX Composite
- October 21, 2026: Bank Indonesia announces its policy decision after a two-day meeting. A Reuters poll found 15 of 29 economists expected the rate to stay at 5.75 percent, AsiaToday reported.
IDX Composite price data for October 20, 2026
The IDX Composite closed at 5,278.89 points on October 20, 2026, according to ANTARA. It gained 282.28 points, or 5.65 percent, from the previous close of 4,996.61 points. The index opened at 4,980.16 points.
IDX Composite by the numbers on October 20, 2026
- Index: IDX Composite
- Home exchange: Indonesia Stock Exchange, Indonesia
- Close on October 20, 2026: 5,278.89 points
- Change versus previous close of October 19, 2026: up 282.28 points (up 5.65 percent)
- Previous close: 4,996.61 points
- Open: 4,980.16 points
- Top gainer: Mitra Komunikasi Nusantara up 50.0 percent
- Top loser: Garda Tujuh Buana down 9.9 percent
- Next scheduled event: October 21, 2026: Bank Indonesia rate decision
