The Indonesia Composite Index (IHSG) is expected to trade with heightened volatility on Thursday (June 18, 2026), as market participants await the outcome of MSCI’s review of the Indonesian stock market, which is considered a key factor in shaping short-term sentiment in the domestic market. On Wednesday (June 17, 2026), the IHSG closed 0.55% lower at 6,220.74. During the session, the index fluctuated between 6,179 and 6,377, with 391 stocks declining, 288 advancing, and 137 remaining unchanged. Several large-cap stocks were among the main contributors to the index’s weakness. Shares of PT Chandra Asri Pacific Tbk. (TPIA) fell 5% to Rp1,995, PT Bank Mandiri (Persero) Tbk. (BMRI) slipped 0.22% to Rp4,490, while PT Dian Swastatika Sentosa Tbk. (DSSA) declined 4.91% to Rp775. Additional pressure came from PT Barito Renewables Energy Tbk. (BREN), which dropped 12% to Rp3,740, PT Amman Mineral Internasional Tbk. (AMMN), which fell 1.59% to Rp3,720, and PT Astra International Tbk. (ASII), which weakened 1.84% to Rp4,800.

According to Pilarmas Investindo Sekuritas Research, the decline in the IHSG reflected investors’ cautious stance ahead of several important events scheduled for this week. Market participants are closely monitoring interest rate decisions from both the Federal Reserve and Bank Indonesia, as well as the ongoing assessment of Indonesia’s capital market by MSCI and FTSE Russell. “The downward pressure on the index appears to stem from investors’ cautious approach while awaiting several major events this week, including monetary policy decisions from the Fed and Bank Indonesia regarding benchmark interest rates,” Pilarmas stated in its research report.

Beyond monetary policy considerations, investor attention is also focused on MSCI’s Global Market Accessibility Review, which is scheduled for release on June 18, 2026, European time, or in the early hours of June 19, 2026, Indonesian time. Edi Chandren, Investment Analyst Lead at Stockbit Group, noted that two key issues are currently drawing market attention: the possibility of lifting the index freeze and the classification status of Indonesia’s stock market, which remains categorized as an emerging market. According to Edi, the most favorable scenario for the market would be if MSCI removes the index freeze or at least provides a strong indication that such a move is forthcoming.

Such a development could strengthen confidence that Indonesia will retain its emerging market status in the next evaluation cycle. Another positive outcome would be if the freeze remains in place but MSCI delivers a constructive assessment regarding improvements in market accessibility and the transparency of share ownership data in Indonesia. “In this scenario, the market driver would be the tone of the assessment rather than the headline stating that the freeze remains in effect. Indonesia’s emerging market status would likely be maintained on June 23, 2026, and the market could react positively,” Edi explained. Conversely, the market may respond negatively if MSCI extends the review period without offering encouraging signals regarding the reforms implemented by Indonesia. Meanwhile, the worst-case scenario of Indonesia being placed on the frontier market watchlist is considered to have a relatively low probability.