Jakarta, IDN Times – The Jakarta Composite Index (IHSG) experienced a significant downturn this week, plummeting by more than 8 percent. This sharp decline was mirrored by a considerable drop in overall stock market capitalization.
Kautsar Primadi Nurahmad, Corporate Secretary of the Indonesia Stock Exchange (BEI), provided insights into the trading data for the period of May 18-22, 2026. While acknowledging some positive transaction activities, he confirmed the overarching negative trend. “The IHSG saw a correction of 8.35 percent over the week, closing at 6,162.045, down from its previous week’s position of 6,723.320,” Nurahmad stated in an official release on Saturday, May 23, 2026.
The week’s substantial decline in the IHSG directly impacted the BEI’s market capitalization, leading to a massive loss in value compared to the preceding week. The total market capitalization for the BEI this week was recorded at Rp10,635 trillion. This figure represents a staggering loss of Rp1,190 trillion, or approximately 10.07 percent, from the Rp11,825 trillion reported last week, signifying a substantial erosion of investor wealth in the Indonesian stock market.
Beyond market valuation, trading activity also showed mixed signals. The average daily transaction frequency saw a decrease of 6.5 percent, falling to 2.37 million transactions from 2.53 million transactions the previous week. Interestingly, despite this dip in frequency, the average daily transaction value on the BEI actually surged by 15.68 percent this week, reaching Rp21.77 trillion from Rp18.82 trillion. Similarly, the average daily transaction volume also recorded a modest increase of 2.53 percent, rising to 36.67 billion shares from 35.76 billion shares a week earlier.
Foreign investors continued to exert downward pressure on the market. On Friday, May 22, foreign investors recorded a net sell of Rp309.52 billion. More broadly, the year-to-date net selling by foreign investors has accumulated to a substantial Rp41.63 trillion, an increase from the Rp37.61 trillion recorded just last week, underscoring a persistent trend of capital outflow from the Indonesian equity market.
Summary
The Jakarta Composite Index (IHSG) experienced a significant downturn, plummeting by 8.35% to close at 6,162.045 between May 18-22, 2026. This sharp decline resulted in a substantial loss of Rp1,190 trillion, or 10.07%, from the Indonesia Stock Exchange’s total market capitalization, reducing it to Rp10,635 trillion and wiping out an estimated $76 billion in value.
While average daily transaction frequency decreased by 6.5%, the average daily transaction value actually surged by 15.68% to Rp21.77 trillion, alongside a modest increase in transaction volume. Foreign investors contributed to the downward trend with a net sell of Rp309.52 billion on May 22, pushing year-to-date net selling to Rp41.63 trillion, indicating continued capital outflow.