Rupiah Firms on Dollar Weakness, Reserve Boost

The Indonesian rupiah strengthened below IDR 17,650 per U.S. dollar on Tuesday, reversing prior losses as broad dollar weakness supported the currency, while yen gains on expectations of more aggressive BoJ tightening and continued carry-trade unwinding reinforced the broader FX move. Domestically, sentiment was buoyed after Finance Minister Purbaya Yudhi Sadewa voiced confidence that GDP growth would remain solid in Q3 and Q4 despite recent natural disasters, stressing that the state budget faced no significant risks. Stronger external buffers also lent support, with August forex reserves hitting a five-month high. However, upside was constrained by inflation concerns, even as local media reported that Bank Indonesia and the government stepped up joint market interventions to rein in volatile food prices, amid annual inflation of 3.19% in August. Investors also stayed cautious ahead of August consumer confidence data due Wednesday, followed by retail sales later in the week.

The Indonesian rupiah remained below IDR 17,700 per U.S. dollar for a third straight session on Monday, hovering around IDR 17,650, as sentiment was supported by stronger external buffers and signs of fiscal prudence. August forex reserves rose to a five-month high of USD 146.5 billion, helped by government withdrawals of external loans. Meanwhile, the government’s plan to lower the 2027 fiscal deficit to 2.4% of GDP from 2.68% this year reinforced views of tighter fiscal management. Meanwhile, Bank Indonesia Governor Destry Damayanti said domestic inflation remains under control and called for closer coordination among the government, central bank, and businesses to support growth. Globally, the dollar index steadied ahead of U.S. inflation data later this week after recently rebounding on solid jobs data, which bolstered expectations of a Fed rate hike in Sept. Attention now turns to domestic data, including August consumer confidence and July retail sales, due later this week.

The Indonesian rupiah hovered near IDR 17,650 per U.S. dollar on Friday, remaining below IDR 17,700 for a second straight session as the dollar weakened further after traders scaled back expectations for a Federal Reserve rate hike this month following dovish comments from a central bank official. Meanwhile, Bank Indonesia Governor Destry Damayanti said domestic inflation remains under control and called for closer cooperation among the government, central bank, businesses, and economists to support economic growth. Gains were tempered, however, by growing concerns that El Niño could disrupt food supplies and push up prices in the coming months. Market caution also prevailed ahead of next week’s data releases, including August foreign exchange reserves, consumer confidence, and July retail sales, which could offer fresh clues on domestic demand and monetary policy. Still, the rupiah was on track to strengthen for a fifth straight week, gaining around 0.25% so far.