Jakarta. Jakarta Composite Index (JCI) closed just shy of the 6,000 mark on Thursday, jumping 115 points, or 1.96%, to 5,999, as investors welcomed easing geopolitical tensions in the Middle East and fresh domestic economic stimulus.

The benchmark index rallied after positive developments in US-Iran peace negotiations boosted hopes for more stable global energy supplies, according to Pilarmas Investindo Sekuritas.

Trading value reached Rp 13.65 trillion ($760.21 million), with 562 stocks advancing, 148 declining, and 249 unchanged. A total of 20.91 billion shares changed hands in 1.666 million transactions.

Pilarmas said investors are also awaiting the release of the US Personal Consumption Expenditures (PCE) inflation data, the Federal Reserve's preferred inflation gauge for setting interest rate policy. Market consensus expects the May 2026 PCE index to rise 0.5% month-on-month and 4.1% year-on-year, up from 0.4% and 3.8%, respectively, in the previous month.

Domestically, the brokerage said the JCI's gains came even as investors continued to assess MSCI's latest market accessibility review, which kept Indonesia in the emerging market index while maintaining concerns over market transparency and accessibility.

Investor sentiment also drew support from the government's Rp 26.34 trillion economic stimulus package for the second half of 2026, aimed at sustaining household purchasing power, supporting economic growth, and cushioning the impact of a slowing global economy.

Asian markets also ended sharply higher. Japan's Nikkei 225 surged 4.6% to a record close of 72,366, led by technology stocks. South Korea's Kospi climbed 5.4% to an all-time high of 8,930 after briefly topping 9,000, with Samsung Electronics rising 5.3% and SK Hynix soaring 13%.

Overnight on Wall Street, US stocks finished mixed as losses in several technology heavyweights, including Microsoft, offset gains elsewhere. The S&P 500 slipped 0.1%, the Dow Jones Industrial Average edged up 0.4%, while the tech-heavy Nasdaq Composite fell 0.4%.