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Indonesian Stock Market Slides Following Credit Rating Downgrade

Jakarta's benchmark equity index fell sharply after international rating agencies downgraded Indonesia's credit outlook. The decline reflects growing investor concern over the country's economic stability.

LSN Thailand · 17 October 2026

Indonesian Stock Market Slides Following Credit Rating Downgrade

Indonesia's stock exchange experienced a significant selloff as market participants reacted to news of a credit rating downgrade affecting the Southeast Asian economy. The downgrade action by rating agencies has intensified concerns among foreign and domestic investors about Indonesia's fiscal position and growth trajectory.

The Jakarta Composite Index, the primary barometer of market sentiment in the country, retreated as investors reassessed their positions in response to the rating decision. Market analysts attributed the sharp decline to fears that a lower credit rating could increase borrowing costs for the Indonesian government and local corporations seeking international financing.

The downgrade signals potential headwinds for an economy already grappling with inflationary pressures and slower growth. Capital markets in the region remain sensitive to shifts in Indonesia's creditworthiness, given the country's size and importance to regional economic performance.

Market observers anticipate continued volatility as investors digest the implications of the downgrade and await policy responses from Indonesian authorities. The central bank and government officials may face pressure to implement measures aimed at stabilizing investor confidence and supporting the currency.

Photo: The Sudirman Central Business District skyline in Jakarta at night. Muhammad Rasyid Prabowo via Wikimedia Commons (CC BY-SA 2.0).