IDX Composite closes as MSCI reforms follow 189-point loss
Published on 10/19/2026 at 19:08 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSMSCI fallout and policy dates
- The index closed at 4,997 points on October 19, down 189 points or 3.6 percent.
- Goldman Sachs estimates MSCI removal could trigger USD 5.6 billion in passive outflows.
- Basic materials was the weakest sector, down 4.6 percent.
- Bank Indonesia's rate decision is scheduled for October 21, with 15 of 29 economists expecting 5.75 percent.
The IDX Composite closed at 4,997 points on October 19, losing 189 points or 3.6 percent. The decline followed MSCI's proposed review of Indonesia's market classification and concerns about foreign capital outflows, Reuters reported.
After the close, the Indonesia Stock Exchange announced measures to improve ownership transparency and remove high-concentration stocks from the benchmark calculation. The announcement followed a 5:30 p.m. WIB update, Jawawa reported.
Why did the IDX Composite fall?
MSCI is considering moving Indonesia from emerging-market status to standalone status. Goldman Sachs estimates a full removal from MSCI indexes could trigger USD 5.6 billion in passive outflows, Reuters reported.
The exchange reduced the daily downside limit to 7 percent from 15 percent on October 19. The measure was intended to slow selling while officials sought clarification from MSCI.
IDX Composite sectors show broad selling
All 11 sectors ended lower. Basic materials fell 4.6 percent, infrastructure dropped 4.5 percent, and consumer cyclicals declined 4.1 percent, VOI reported.
Market breadth was negative, with 691 shares lower, 103 higher and 169 unchanged. Trading value reached IDR 25.1 trillion, according to Tempo.
Rupiah and bonds add pressure
The rupiah weakened to 18,040 per USD, while Indonesia's 10-year government bond yield rose to 7.4 percent from 7.169 percent on Friday. The figures showed pressure extending beyond equities, Reuters reported.
What comes next for IDX Composite
- October 21, 2026: Bank Indonesia is scheduled to announce its policy decision after a two-day meeting. A Reuters poll found 15 of 29 economists expect the rate to stay at 5.75 percent, MarketScreener reported.
- October 21, 2026: Investors will assess whether the central bank responds to rupiah pressure with a rate increase, Reuters reported.
IDX Composite price data for October 19, 2026
The IDX Composite closed at 4,997 points on October 19, 2026, down 189 points or 3.6 percent from the previous close of 5,185 points, VOI reported. The close was the lowest level in six years.
IDX Composite by the numbers on October 19, 2026
- Index: IDX Composite
- Home exchange: Indonesia Stock Exchange, Indonesia
- Close on October 19, 2026: 4,997 points
- Change versus previous close of October 16, 2026: down 189 points (down 3.6 percent)
- Previous close: 5,185 points
