.png)
Rupiah Updates: Indonesian Currency Comes Under Pressure Near Rp18,000
Indonesia’s rupiah is once again under pressure as the currency approaches—and briefly moves beyond—the psychologically important Rp18,000 per US dollar level. The rupiah closed at around Rp17,978 per US dollar on Monday, September 28, 2026, after touching an intraday level above Rp18,000. On Tuesday, September 29, the currency weakened further, reaching approximately Rp18,001 per US dollar in morning trading. The latest movement comes amid broader pressure on Asian currencies, as higher US Treasury yields, elevated oil prices and a stronger US dollar weigh on emerging-market currencies.
Rupiah Faces Renewed Pressure
The Rp18,000 level has become an important psychological threshold for Indonesia’s currency. The rupiah had strengthened toward approximately Rp17,500 earlier in September, but renewed global market volatility has pushed it lower again. Reuters reported that the rupiah breached Rp18,000 on September 29 for the first time since early August. Rising US Treasury yields and higher oil prices were among the factors supporting demand for the US dollar. Higher global yields can make US-dollar assets relatively more attractive, while rising oil prices can add pressure to countries that are exposed to higher energy costs.
Bank Indonesia Continues to Monitor the Currency
Bank Indonesia has continued to intervene in the foreign-exchange market as it works to manage volatility and support rupiah stability. On September 29, a Bank Indonesia official said the central bank had been consistently intervening in currency markets following the rupiah’s decline to its weakest level since August 4. Bank Indonesia has also been adjusting how it conducts intervention. Governor Destry Damayanti said the central bank had reduced the share of spot-market intervention because of its cost, while placing greater emphasis on hedging and other instruments. The BI-Rate was maintained at 5.75% at the September policy review, with the central bank continuing to balance currency stability, inflation and economic activity.
Jakarta Stocks Also Face Pressure
Currency weakness has been accompanied by declines in Indonesia’s stock market. The Jakarta Composite Index (JCI) fell 1.51% to 6,147.86 on September 28. The technology sector recorded one of the sharpest sectoral declines, while several other sectors also moved lower. On September 29, the JCI opened lower again, reflecting continued pressure across Indonesian financial markets. Reuters reported that the index initially fell as much as 2.2% before recovering part of the decline. The market was also adjusting to a new minimum share-price rule implemented by the Indonesia Stock Exchange, which changed the minimum trading price from Rp50 to Rp1.
Global Factors Remain Important
The latest rupiah movement is not happening in isolation. Global financial markets have been dealing with higher oil prices, elevated bond yields and geopolitical uncertainty. Reuters reported that the US dollar was strengthening broadly on September 29 as oil prices remained elevated and US Treasury yields climbed. These conditions can create additional pressure on emerging-market currencies.
For Indonesia, movements in the rupiah are particularly relevant for businesses that import goods, purchase services in US dollars or have foreign-currency obligations. Currency movements can affect import costs, corporate margins and consumer prices. At the same time, exporters and companies receiving significant US-dollar revenues can experience different effects from a weaker rupiah.
What to Watch Next
The Rp18,000 level is likely to remain an important reference point for Indonesian financial markets in the near term. Investors and businesses will be watching several factors, including US interest-rate expectations, Treasury yields, global oil prices, geopolitical developments and Bank Indonesia’s currency-stabilization measures. For consumers and companies, the direction of the rupiah will also remain important because prolonged currency weakness can influence the cost of imported products, international travel, technology equipment and other dollar-linked expenses. The rupiah’s latest move therefore highlights how closely Indonesia’s financial markets remain connected to developments in global currencies, commodities and interest rates. Market data and conditions can change throughout the trading day. This article is for informational purposes and is not financial advice.
Comments