ING economists expect Bank Indonesia (BI) to move to a tighter policy stance at its next meeting. They expect a 25 basis point rise in the policy rate this week, with currency stability as the main aim.
Since BI’s last meeting, the Indonesian rupiah (IDR) has fallen by over 1.5%. This has happened despite BI intervening in foreign exchange markets to limit pressure on the currency.
Bank Indonesia Rate Outlook
They note that expectations for US Federal Reserve rate cuts have shifted because US economic data has stayed resilient. This has widened the rate gap between Indonesia and the United States, which has been unfavourable for the IDR.
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With the Indonesian Rupiah weakening past 16,450 against the dollar, we are positioning for a potential rate hike from Bank Indonesia. This move seems increasingly likely given the central bank’s focus on currency stability. The market is now pricing in at least a 25 basis point increase at the upcoming meeting.
The US Federal Reserve’s decision to maintain its policy rate in the 4.75-5.00% range has kept the rate differential tight, putting pressure on the Rupiah. This environment discourages the foreign investment inflows that would otherwise support the currency. We have seen this play out with net foreign outflows from the bond market totaling over $1.2 billion in the last quarter.
Market Positioning And Hedging
Consequently, we are seeing a rise in demand for derivatives that protect against further IDR weakness, such as USD/IDR call options. Traders should also consider positioning for higher short-term Indonesian rates through interest rate swaps. Implied volatility has already ticked up by 8% over the past month, reflecting growing market anticipation.
This situation is reminiscent of the market action we observed in mid-2025. Back then, a similar period of Rupiah depreciation prompted a surprise BI rate hike which temporarily stabilized the currency. This history suggests the central bank is willing to act decisively when its currency stability mandate is challenged.