KONTAN.CO.ID -  Indonesia’s capital markets are weathering intense near-term volatility as global institutional investors de-risk emerging market portfolios ahead of a highly anticipated interest rate decision by the United States Federal Reserve.

According to a market brief issued by global banking giant J.P. Morgan Indonesia, the Jakarta Composite Index (IHSG) faces continued short-term selling pressure following the latest Federal Open Market Committee (FOMC) session.

On Wednesday (16/9/2026), the benchmark IHSG slid by 0.38% to settle at 6,436.85, bringing its cumulative 5-day trading drawdown to a sharp 3.61%.

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Benny Kurniawan, Head of Equity Research at J.P. Morgan Indonesia, emphasized that the upward trajectory of American borrowing costs continues to act as a significant barrier for local equities.

"The potential for further interest rate hikes in the US will likely remain a headwind for Indonesian stocks in the short term," Kurniawan clarified.

He noted that mid-to-long-term recovery parameters will heavily depend on a combination of global macro stability and underlying domestic corporate fundamentals.

Data compiled via the CME FedWatch tool confirms that institutional expectations for a 25 basis point rate increase reached a definitive 92.5% probability during this session.

This aggressive global monetary tightening directly triggers capital reallocations, favoring dollar-denominated assets over emerging market paper.

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Sustained Pressure Across FX and Fixed-Income Desks

The monetary drag extended directly into the foreign exchange market, with the Indonesian Rupiah weakening further by 0.01% to hit Rp 17,696 per US Dollar at the spot close.

The contraction marked the local currency's fifth consecutive day of depreciation, highlighting persistent fears regarding capital flight.

Concurrently, fixed-income markets adjusted to the overarching liquidity drain. Bloomberg data tracked a slight contraction in sovereign interest rates, with the benchmark 10-year sovereign bond (SBN) yield easing by 1.3 basis points to 7.14%, while the shorter 5-year SBN yield compressed by 2.7 basis points to settle at 6.97%.

For global quantitative desks and portfolio managers, J.P. Morgan's outlook underscores that while Indonesia’s corporate earnings capacity remains solid, near-term capital deployments must withstand high currency volatility and tactical asset rotations until global interest rate peaks normalize over the multi-year holding horizon.

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