Jakarta. Jakarta Composite Index (JCI) closed higher on Monday, advancing 36.29 points or 0.42% to 8,645, with the benchmark moving within a tight range of 8,609–8,648.

Trading activity was robust, with volume reaching 42.79 billion shares and turnover totaling Rp 24.01 trillion ($1.43 billion). Transaction frequency exceeded 2.9 million. Market breadth remained negative, with 251 stocks advancing, 433 declining, and 120 unchanged.

Among the day’s top gainers, Bima Sakti Pertiwi (PAMG) surged 27.27%, while MDTV Media Technologies (NETV) climbed 26.59%. Eka Sari Lorena Transport (LRNA)  jumped 25%, followed by Trimitra Prawara Goldland (ATAP), which rose 24.55%.

On the losing side, Cahayasakti Investindo Sukses (CSIS) fell 15.10%, Hotel Fitra International (FITT) dropped 14.96%, and Nusantara Pelayaran Handal (PORT) slid 14.90%. Pelayaran Jaya Hidup Baru (PJHB) also retreated 15.69%.

Pilarmas Investindo Sekuritas said the JCI’s gains were underpinned by a combination of supportive external and domestic sentiments. On the home front, positive sentiment was reinforced by foreign capital inflows. Bank Indonesia recorded a Rp 240 billion capital inflow into domestic financial markets during the third week of December 2025.

Pilarmas said the inflows reflected rising investor confidence in the stability of Indonesia’s financial markets, noting that such confidence was closely linked to Bank Indonesia’s continued efforts to safeguard external resilience through coordination with the government and relevant authorities.

Across the region, Asian shares were mixed on Monday after a rebound in artificial intelligence–related stocks, including Nvidia, fueled a late-week rally on Wall Street.

In Japan, the Nikkei 225 jumped 1.8% to 50,402.39, driven by strong gains in chipmakers and AI-related companies. Semiconductor equipment maker Tokyo Electron surged 6.3%, while chip testing equipment producer Advantest gained 4.5%.

Financial stocks and exporters in Japan also advanced after the Bank of Japan raised its key policy rate on Friday to its highest level in 30 years. Contrary to expectations, the yen weakened following the decision.

Elsewhere, Hong Kong’s Hang Seng Index rose 0.4% to 25,901.77, while the Shanghai Composite Index advanced 0.7% to 3,917.36.

South Korea’s Kospi added 2.1% to 4,105.93, and Taiwan’s Taiex climbed 1.6%, supported by a 2.5% gain in chipmaker TSMC.

Pilarmas said the JCI’s strengthening was in line with positive movements across Asian equity markets, which followed Wall Street’s rally. Globally, markets responded optimistically to expectations that the Federal Reserve still has room to cut interest rates next year. The sentiment was reinforced by lower-than-expected US inflation data, with annual inflation in November recorded at 2.7%, below the market forecast of 3.1%.

Pilarmas noted that the easing inflation pressure signaled scope for a more accommodative monetary policy stance. Additional external support came from China, after the People’s Bank of China decided to maintain its Loan Prime Rates at record lows for a seventh consecutive month. The one-year and five-year LPRs were kept at 3.0% and 3.5%, respectively, reflecting policymakers’ confidence that the economy remains on track to meet this year’s growth target.

In the US, Wall Street ended last week on a strong note. On Friday, the S&P 500 rose 0.9%, edging up 0.1% for the week. The Dow Jones Industrial Average gained 0.4%, while the Nasdaq Composite advanced 1.3%, posting a weekly increase of 0.5%.

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