Jakarta, Bisnis.com — The Jakarta Composite Index (JCI) experienced a marginal decline of 0.56% during the trading week of May 25–29, 2026, closing at the 6,127.38 level.
Despite the slight dip in the index, the Indonesia Stock Exchange (IDX) saw growth in total market capitalization. Corporate Secretary of the IDX, Kautsar P. Nurahmad, reported that market capitalization rose by 0.88% to reach Rp10,729 trillion, up from the previous week’s Rp10,635 trillion.
In an official statement released on Saturday, May 30, 2026, Kautsar highlighted a significant surge in trading activity. The average daily transaction value jumped by 30.37%, climbing to Rp28.38 trillion from the prior week’s figure of Rp21.77 trillion.
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However, other trading metrics showed a cooling trend. The average daily transaction frequency declined by 10.87%, falling to 2.11 million trades compared to 2.37 million the week before. Similarly, the average daily transaction volume dropped by 15.60%, settling at 30.95 billion shares from the previous week’s 36.67 billion shares.
Related: Stock Recommendations and JCI Movements for Today, Friday, May 29, 2026
Meanwhile, foreign investors continued to maintain a selling position in the domestic market. On Friday, May 29, 2026, foreign net sales reached Rp8.52 trillion for the year, bringing the total year-to-date foreign net sell figure to Rp53.97 trillion.
Beyond market performance, the exchange remains focused on long-term sustainability. On Tuesday, May 26, 2026, the IDX, in collaboration with the Financial Services Authority (OJK) and the Institute of Indonesia Chartered Accountants (IAI), hosted a Strategic Leadership Dialogue titled “Sustainability Disclosure Standards (SPK) in Building Trust within the Indonesian Capital Market.”
The forum was designed to enhance understanding among listed companies regarding the implementation of SPK, which aligns with the global IFRS S1 and S2 standards. This initiative aims to bolster the credibility of financial information and improve the overall competitiveness of the Indonesian capital market.
During the session, stakeholders underscored the critical role of corporate boards in integrating sustainability aspects into business strategies and risk management frameworks. To support these efforts, the IDX continues to develop its reporting infrastructure, specifically through the SPE-IDXnet system and the IDX Sustainability website, ensuring that high-quality, transparent ESG data remains accessible to investors.
Summary
The Jakarta Composite Index (JCI) saw a slight decline of 0.56% during the trading week of May 25–29, 2026, closing at 6,127.38. Despite this dip, the Indonesia Stock Exchange’s (IDX) total market capitalization increased by 0.88% to Rp10,729 trillion. Average daily transaction value surged by 30.37% to Rp28.38 trillion, though average daily transaction frequency and volume both decreased. Foreign investors maintained a net selling position, with year-to-date net sales totaling Rp53.97 trillion.
In parallel, the IDX, in collaboration with OJK and IAI, hosted a “Strategic Leadership Dialogue” on May 26, 2026. This forum focused on Sustainability Disclosure Standards (SPK), aligning with global IFRS S1 and S2 standards, to enhance trust and competitiveness in the Indonesian capital market. The IDX supports these efforts by developing reporting infrastructure like the SPE-IDXnet system and the IDX Sustainability website.
