Indonesian Stock Market Shows Mixed Performance Amid Year-End Profit-Taking

Market Overview

The Indonesian Composite Index (IHSG) demonstrated a mixed performance in December 2025, having risen 21.73% year-to-date (YTD) as of the end of trading on December 18, 2025 ¹

. The index closed at 8,618, representing a 0.68% decline on that day. This movement came as investors potentially positioned themselves for profit-taking ahead of the year-end ¹

Source 1

https://investasi.kontan.co.id/news/aksi-profit-taking-membayangi-laju-kencang-ihsg-jelang-akhir-tahun-2025

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Sectoral Performance

On December 19, 2025, the IHSG showed varied performance throughout the trading session. In the morning, it gained 0.21% to 8,636.35 ²

, supported by gains in certain sectors. The IDX Technology sector led with a 0.63% increase, followed by improvements in the IDX Finance, IDX Basic Materials, and IDX Energy sectors ²

Source 2

https://investasi.kontan.co.id/news/ihsg-menguat-ke-86363-pada-hari-ini-1912-top-gainers-lq45-nckl-untr-goto

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Market Dynamics

The market dynamics were influenced by both positive and negative factors. Major banking stocks such as BBCA (+1.87%), BMRI (+2.49%), and BBRI (+0.80%) acted as supports for the IHSG ²

. Conversely, stocks like AMMN (-6.11%), BREN (-2.83%), and FILM (-9.80%) exerted downward pressure on the index ²

Source 2

https://investasi.kontan.co.id/news/ihsg-menguat-ke-86363-pada-hari-ini-1912-top-gainers-lq45-nckl-untr-goto

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Corporate Actions

Several significant corporate actions were observed:

1. PT Petrosea Tbk (PTRO) secured an EPC contract for a project in Singapore through its subsidiary, Scan-Bilt Pte. Ltd., which is expected to contribute to revenue gradually, with peak contribution anticipated in 2027 ²
   Source 2

   https://investasi.kontan.co.id/news/ihsg-menguat-ke-86363-pada-hari-ini-1912-top-gainers-lq45-nckl-untr-goto
   .
2. PT SLJ Global Tbk (SULI) planned a private placement of up to 632 million new shares (~10% of paid-up capital) to strengthen its capital structure and support business expansion ²
   Source 2

   https://investasi.kontan.co.id/news/ihsg-menguat-ke-86363-pada-hari-ini-1912-top-gainers-lq45-nckl-untr-goto
   .

Market Sentiment and Outlook

Investor sentiment remained cautious amid the mixed market performance. Foreign investors recorded a net purchase of Rp421.76 billion in the regular market and Rp1.02 trillion across all markets on December 18, 2025 ²

. The varied sectoral performance and corporate actions are likely to continue influencing market dynamics as the year comes to a close.