JCI Plummets Sharply as Global Sentiment and Rupiah Weigh on Market

The Indonesia Composite Index (JCI) faced intense pressure during morning trading, experiencing a deep decline of more than 4 per cent. Capital market observer Reydi Octa explained that the slump in the domestic stock index was triggered by a combination of external and internal factors.

“The JCI’s decline of over 4 per cent this morning was influenced by a combination of global and domestic sentiments,” Reydi stated on Monday (18/5/2026). “Pressure stems from continued high levels of foreign selling, concerns regarding capital outflows from emerging markets, and risk-off sentiment due to global uncertainty, the weakening of the Rupiah against the US Dollar, and domestic market issues related to liquidity and High Supply/High Concentration (HSC) stocks,” he added.

Amidst this sharp decline in the JCI, concerns have emerged among market participants regarding the potential for a temporary trading halt. However, Reydi assessed that such a scenario is unlikely to occur.

In the midst of this market volatility, Reydi advised investors to remain calm and avoid making impulsive decisions. “In conditions like these, investors should avoid engaging in panic selling,” Reydi noted.

He suggested that market participants should restructure their investment strategies by prioritising the availability of fresh funds and shifting towards stocks with solid performance.

During the first session of trading on Monday (18/5/2026), the JCI remained under pressure. The index closed the first session at the 6,470.34 level, weakening by 3.76 per cent, equivalent to 252 points, compared to its opening. According to monitoring, at 11:22 WIB, the index plummeted by 292.363 points or 4.35 per cent to the 6,430.956 level. Following the opening, selling pressure continued to dominate until the index touched a low of 6,398.786.