The rupiah recently plunged to an all-time low of Rp 17,514 per United States dollar, and pressure on the currency may intensify in the second quarter as Indonesia faces a convergence of external and domestic challenges. Maturing government debt, dividend repatriation by foreign investors and soaring oil prices are tightening dollar liquidity, while the latest MSCI Indonesia rebalancing threatens further capital outflows.

Both the central bank and the government have made concerted efforts to defend the rupiah, but so far to little avail. The currency’s persistent weakness increasingly reflects not only deteriorating fundamentals, but also eroding market confidence in the consistency of economic policymaking.

Bank Indonesia has introduced several stabilization measures, including large-scale foreign exchange intervention, efforts to attract foreign capital through Bank Indonesia Securities (SRBI), purchases of government securities (SBN) on the secondary market, loose liquidity conditions in the market and banking sector, increased intervention in the non-deliverable forward (NDF) market, restrictions on dollar purchases to a maximum of US$25,000 per person per month and closer monitoring of dollar transactions.

The government has also joined Bank Indonesia in defending the rupiah by introducing a Bond Stabilization Fund (BSF), a mechanism to buy back government bonds during periods of market stress using excess budget balances (SAL). Yet these measures have so far failed to arrest the rupiah’s decline.

The rupiah has weakened steadily against major currencies, including the US dollar, Singapore dollar, euro and Australian dollar, since last year. Year-to-date, the rupiah has depreciated by around 5 percent, while regional peers such as the Singapore dollar, Brunei dollar and Malaysian ringgit have appreciated. Domestically, the currency’s weakness cannot be separated from rising inflationary pressure and rapid money supply expansion. In April 2026, base money growth reached 14.6 percent year-on-year, significantly higher than the single-digit growth recorded a year earlier.

The second quarter has historically been vulnerable due to seasonal dividend repatriation, when multinational companies convert rupiah earnings into foreign currency. This year, however, the pressure is amplified by around Rp 30 trillion ($1.7 billion) in maturing government securities. At the same time, the government faces a swelling subsidy burden as oil and gas prices surge following the prolonged conflict between the US and Iran.

Energy subsidy and compensation spending in the first quarter jumped 266.5 percent year-on-year to Rp 118.7 trillion, equivalent to 26.6 percent of the 2026 State Budget allocation. With oil prices remaining elevated, fiscal pressure is expected to worsen. Exchange rate depreciation also places additional strain on state-owned enterprises such as PT Pertamina and PLN, both of which carry significant foreign exchange exposure.

Pressure is also coming from the capital market. In February 2026, MSCI warned that Indonesia risked being downgraded from emerging-market to frontier-market status due to concerns over market governance and liquidity. Indonesia ultimately retained its emerging-market status after reforms introduced by the Indonesia Stock Exchange and the Financial Services Authority, but MSCI removed many Indonesian stocks from its indices.

Six stocks were removed from the MSCI Global Standard Index and 13 from the MSCI Global Small Cap Index, with no new additions. Several companies were excluded because their ownership structures were deemed too concentrated, raising concerns over limited liquidity and potential price control by conglomerates as majority shareholders.

MSCI’s decision has pushed the composite index down from above 9,000 in January to below 6,800. Foreign capital outflows have intensified accordingly. In the first quarter alone, equity outflows reached $1.95 billion, followed by another $280 million in the second quarter through May 2026. Analysts estimate that MSCI rebalancing alone could trigger passive outflows of Rp 28 trillion to Rp 31 trillion — equivalent to roughly 1 percent of Indonesia’s foreign exchange reserves.

As a small open economy, Indonesia remains highly vulnerable to shifts in global risk appetite. The rupiah’s movement is influenced not only by domestic fundamentals, but also by geopolitical tensions, commodity prices and investor sentiment toward emerging markets.

Yet market sentiment toward Indonesia continues to weaken. Since February, both Moody’s and Fitch Ratings have revised Indonesia’s outlook from stable to negative, reflecting concerns over fiscal sustainability, policy credibility and governance risks.

The weakening rupiah should not be dismissed as temporary volatility. Exchange rates, bond yields and capital flows reflect the collective judgment of financial markets on the direction of an economy. Behind the headline GDP figures, Indonesia’s underlying economic condition remains fragile. Household consumption growth has stagnated over the past year, while gross national product (GNP), which better reflects income generated by Indonesian residents and businesses, has not expanded as strongly as GDP.

Without meaningful structural reforms, investor confidence could deteriorate further. Inconsistent policy direction, aggressive monetary expansion and weak law enforcement risk undermining the macroeconomic stability Indonesia has maintained since the 1998 Asian financial crisis. Sustaining long-term growth will depend not only on fiscal intervention, but also on restoring trust in the country’s economic management.