Central banks across developing Asia have spent months watching their currencies get beaten up. The old move was to burn through their own savings to fight back. That is expensive, and it cannot last forever. So they are trying something different: instead of just selling reserves to prop up their money, they are finding creative ways to pull in dollars from the outside.
South Korea nudged its companies to bring their overseas earnings home sooner, and the won posted its biggest monthly gain since 2022. Taiwan has gone a similar route, telling exporters to sell their dollars when the currency comes under pressure.
The quiet star of this show might be India.
Indonesia took a different angle. The strategy is simple: make your country a nice place for foreign money to sit, and the currency gets support without touching the rainy day fund.
This shift in tactics is rooted in the reality that reserves are finite. With official stockpiles in countries like India and Thailand down 4% to 9% since the Middle East conflict began, policymakers can no longer rely on heavy intervention alone. They need to build pipelines for dollars that do not deplete their war chests.
The reason for all this creativity comes down to a simple lesson from recent pain. When oil prices spiked after the Middle East conflict, it exposed how dependent these economies are on energy imports. Yet for a region with large current-account surpluses and generally solid policy frameworks, the currency slide is striking.
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Look at the Bloomberg basket of 22 emerging-market currencies and you will see the problem. The Indonesian rupiah, Indian rupee and Thai baht are among this year's five weakest performers. Meanwhile, Latin American currencies like the Colombian peso and Mexican peso are leading the pack, helped by higher interest rates and oil-exporting economies.
Low Guan Yi at M&G says the imbalance comes from the structure of capital flows, not from trade. That means intervention alone will not fix it. "Against this backdrop, we expect policymakers to continue broadening the sources of foreign currency inflows," he said.
At the same time, central banks still have the old tools out. Bank Indonesia raised its benchmark rate by 100 basis points during May and June while also intervening. The Philippine central bank raised its policy rate by 50 basis points, while South Korea's central bank enacted its first tightening in three years. MUFG sees two more hikes each for Indonesia and the Philippines, plus at least one more in South Korea.
The caution makes sense when you consider the bigger picture. At the Fed's latest meeting, three policymakers voted against holding US rates steady and cautioned that reacting too slowly to inflation might require more aggressive moves later. That uncertainty keeps Asian central banks on edge.
"If you are an Asian central bank, you are looking at a world where oil, US yields and the dollar could all move against you without much warning," said Michael Wan at MUFG. "You want to save your firepower for the worst moments, not spend it on every little wobble."
The old rule was simple: a weak currency means a central bank steps in. The new rule is messier and more inventive, but it could be better for the long run. Reserves stay intact, and countries build more sources of dollars instead of depending on one trick.
For investors, this matters more than it seems. If Asian currencies stabilize without central banks draining their reserves, the region looks safer for outside money.
Western Asset Management's Desmond Fu points to one caveat. Latin American currencies may keep an edge when you count interest income, which he calls "higher carry." But some Asian currencies could narrow the gap if US yields calm down, energy disruptions fade, and the AI investment boom keeps supporting tech exports.
When a central bank protects its currency without wrecking its balance sheet, it builds confidence. And confidence, in currency markets, is often worth more than cash.
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