IDX Composite closes 51 points higher as HSC reform lifts sentiment
Published on 10/23/2026 at 22:41 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSHSC reform supports Indonesian stocks
- IDX Composite closed at 5,439 points on October 23, 2026, up 51 points or 1.0 percent.
- IDX reforms excluding HSC stocks from the index take effect on November 2, 2026.
- WMUU led gainers with a 33.3 percent rise, while BTEK fell 8.3 percent.
- The next session starts October 26, 2026, at 9:00 a.m. WIB.
The IDX Composite closed at 5,439 points on October 23, 2026, up 51 points or 1.0 percent, CNBC Indonesia reported. The advance followed Indonesia Stock Exchange reforms that exclude high shareholding concentration stocks from the index from November 2, 2026.
WMUU was the strongest listed stock, rising 33.3 percent. BTEK was the weakest, falling 8.3 percent, based on the session's stock ranking.
Why did the IDX Composite rise on Friday?
Investors responded positively to the exchange's high shareholding concentration policy, which aims to improve the index's representation. The policy follows concerns raised by MSCI over Indonesia's market classification, Tempo reported.
The IDX will also add share-affiliation information for holdings of 1 percent. The exchange previously reduced the asymmetric auto-rejection threshold from 15 percent to 7 percent through December 31, 2026.
IDX Composite winners and losers on Friday
Gainers and losers at the October 23 close, based on Pasardana:
- WMUU up 33.3 percent
- FAST up 25.0 percent
- PTSP up 25.0 percent
- BTEK down 8.3 percent
- BUKK down 6.9 percent
- LINK down 6.9 percent
Ten of eleven sectors strengthened. Primary consumer goods rose 3.2 percent, while healthcare fell 0.2 percent, Tempo reported. Advancing stocks outnumbered decliners by 506 to 192, with 265 unchanged.
IDX Composite rebounds after an early dip
The index opened at 5,397 points and reached a low of 5,366 points before recovering. It later touched a high of 5,455 points and closed near the session high, CNBC Indonesia reported.
What comes next for the IDX Composite
- October 26, 2026, 9:00 a.m. WIB: The next regular Indonesia Stock Exchange session begins, Gotrade Indonesia states.
- November 2, 2026: High shareholding concentration stocks leave the IDX Composite calculation, Tempo reports.
IDX Composite price data for October 23, 2026
The IDX Composite closed at 5,439 points on October 23, 2026, up 51 points or 1.0 percent, CNBC Indonesia reported. The previous close was 5,388 points on October 22, 2026, CNBC Indonesia reported. The index opened at 5,397 points and traded between 5,366 and 5,455 points.
IDX Composite by the numbers on October 23, 2026
- Index: IDX Composite
- Home exchange: Indonesia Stock Exchange, Indonesia
- Close on October 23, 2026: 5,439 points
- Change versus previous close of October 22, 2026: up 51 points (up 1.0 percent)
- Previous close: 5,388 points
- Open: 5,397 points
- Day high / day low: 5,455 points / 5,366 points
- Top gainer: WMUU up 33.3 percent
- Top loser: BTEK down 8.3 percent
- Next scheduled event: November 2, 2026: HSC stocks leave the IDX Composite calculation
