Indonesian markets face volatility as IHSG drops and Rupiah reacts to global shifts

Indonesian financial markets experienced significant volatility on Wednesday, August 26, 2026. The Jakarta Composite Index (IHSG) faced heavy downward pressure, closing down 1.48 percent to the 6,405 level, with nearly 600 stocks declining. This decline was attributed to domestic risks and investor caution regarding upcoming protests.

In the currency market, the Indonesian Rupiah showed mixed performance. While it initially opened stronger at Rp17,695 per US dollar due to falling global oil prices and hopes for Middle East peace—specifically reports of Iran and Oman discussing a joint maritime corridor in the Strait of Hormuz—it later faced pressure, closing near Rp17,725.

Global economic factors heavily influenced these movements. Investors are closely monitoring the US Federal Reserve, specifically upcoming remarks from Chair Kevin Warsh at the Jackson Hole Symposium and the release of Personal Consumption Expenditures (PCE) inflation data. Additionally, the market is reacting to shifting energy dynamics and the potential for improved navigation in the Strait of Hormuz, which has contributed to a decline in Brent and WTI crude oil prices.