IHSG Swings Sharply After MSCI Review, Holds Above 6,100

Jakarta, CNBC Indonesia — The Jakarta Composite Index (IHSG) managed to close in positive territory on Friday (19/6/2026) despite a highly volatile trading day, as market participants reacted to the results of the MSCI Global Market Accessibility Review 2026.

According to data from the Indonesia Stock Exchange (BEI), the IHSG edged up 0.08% or 4.8 points to 6,177.14. During the session, the index touched an intraday high of 6,215.06 and a low of 6,117.31.

Interestingly, the IHSG turned positive towards the end of trading. The index had strengthened by as much as 0.69% before paring gains to close nearly flat compared to the previous day’s level.

Total transaction value reached Rp25.89 trillion, with a trading volume of 30.31 billion shares across 1.7 million trades. A total of 353 stocks advanced, 358 declined, and 248 remained unchanged.

Despite closing in the green, the IHSG’s gain was supported by select large-cap stocks. Shares of PT Bayan Resources Tbk (BYAN) were the biggest contributor, adding 23.84 points, followed by PT Mora Telematika Indonesia Tbk (MORA) with 21.07 points and PT Bank Central Asia Tbk (BBCA) with 14.05 points. Other supporting stocks included PT Dian Swastatika Sentosa Tbk (DSSA), PT Sejahteraraya Anugrahjaya Tbk (SRAJ), PT Merdeka Gold Resources Tbk (MDKA), and PT Maha Properti Indonesia Tbk (MPRO).

Conversely, the heaviest drag on the index came from PT Telkom Indonesia (Persero) Tbk (TLKM), which shaved off 18.84 points. Pressure also came from PT Bank Mandiri (Persero) Tbk (BMRI), PT Amman Mineral Internasional Tbk (AMMN), PT Barito Pacific Tbk (BRPT), and PT Bank Rakyat Indonesia (Persero) Tbk (BBRI).

By sector, energy stocks led the market gains with a 4.90% surge, followed by healthcare which jumped 3.99% and technology which rose 2.12%. On the downside, the basic materials sector was the heaviest drag with a 2.04% decline, followed by utilities down 1.23%, industrials down 1.10%, and financials down 0.54%.

The market volatility coincided with the release of MSCI’s latest Global Market Accessibility Review early Friday morning. In the annual evaluation report, the accessibility of Indonesia’s equity market officially recorded a deterioration in the information flow criteria.

According to the summary rating table in the document, Indonesia’s information flow rating was downgraded from a positive rating with no major issues in 2025 to a negative rating indicating the need for urgent improvement in 2026. The downgrade was triggered by structural findings related to unclear share ownership structures in the domestic capital market.

The evaluation also highlighted indications of coordinated trading behaviour on the Indonesian bourse, which was assessed as directly undermining the fair price formation process in the regular market. These transparency-limiting practices were viewed as materially restricting the ability of international institutional investors to assess the true free float of shares.

This condition further hinders foreign investors from relying on objectively observed market prices for portfolio construction and index replication. The evaluation report also noted that the criteria for equal rights for foreign investors remain hampered, as detailed information regarding corporate actions and domestic stock market dynamics is not always readily available in English.

Nevertheless, Indonesia’s operational framework in other aspects remains relatively stable, with very good ratings maintained for asset custody infrastructure, registration, trading mechanisms, and foreign ownership limits. While the trading infrastructure is considered highly adequate, the sharp focus on ownership transparency and price formation integrity is expected to trigger a reassessment by global index fund managers, potentially causing volatility pressure from foreign capital flow adjustments on large-cap stocks throughout the trading session.

Despite the changes, the Indonesia Stock Exchange (BEI) has already undertaken improvements in information disclosure for both domestic and foreign investors. The BEI has begun disclosing share ownership above 1%, releasing HSC data, and implementing various other structural reforms at the exchange.