After a blistering three-month run fueled by artificial intelligence optimism, Asian stocks took a step back on Tuesday as a firmer US dollar and renewed geopolitical friction around US-Iran talks dampened risk appetite. The MSCI Emerging Markets Asia index, which had surged more than 30% over the past quarter, showed mixed performance across the region, with tech-heavy markets like Taiwan holding up while others slipped.
What's driving the pullback?
The main culprit is a strengthening US dollar, which tends to pull global capital toward American assets and away from emerging markets. When the dollar rises, it makes dollar-denominated debt and imports more expensive for countries in Asia, pressuring local currencies and raising borrowing costs. At the same time, higher US Treasury yields—driven by bets that the Federal Reserve may keep interest rates elevated for longer—add to the appeal of US bonds relative to riskier emerging-market assets.
Geopolitical uncertainty added another layer of caution. Reports that US-Iran talks had stalled injected a fresh geopolitical risk premium into markets, pushing oil prices higher and making investors less willing to take on risk. For a region that has been riding high on AI enthusiasm, the combination of a stronger dollar and geopolitical jitters was enough to prompt a reassessment.
Diverging fortunes across Asia
The day's moves were far from uniform. Taiwan's stock market jumped more than 2%, led by chipmaking giant TSMC, which rose 3.5%. Taiwan's deep integration into the global AI supply chain—TSMC is the primary manufacturer of advanced chips used in AI applications—has made it a standout beneficiary of the AI trade. Even as the broader region cooled, demand for AI-related stocks remained robust.
In contrast, South Korea's KOSPI index slid sharply, reflecting broader concerns about currency weakness and foreign capital outflows. The Korean won, like many regional currencies, came under pressure as investors priced in higher-for-longer US interest rates.
Foreign-exchange markets across Asia looked defensive. Currencies weakened broadly as traders adjusted to the prospect of a stronger dollar and higher US yields. This dynamic is particularly challenging for emerging markets, where a soft currency can force central banks to tighten financial conditions to stem outflows and stabilize the exchange rate.
Indonesia: A case study in emerging-market stress
Indonesia offered a clear example of how these pressures play out. The Indonesian rupiah weakened to around 17,980 per US dollar, a level that has historically prompted concern among policymakers. Foreign investors have pulled nearly $4 billion from Indonesian stocks this year, and the country's 10-year government bond yield sat near 7.167%—a sign that investors are demanding higher compensation for holding local debt.
When a currency starts to wobble, officials often respond by draining liquidity from the banking system or allowing bond yields to rise, making the currency more attractive to foreign investors. But those moves also raise local borrowing costs and increase the price of hedging dollar exposure, which can weigh on corporate profits and economic growth. Even if the stock index posts a modest gain on the day—Indonesia's benchmark was up about 0.7%—the underlying currency pressure tells a more cautious story.
For a deeper look at how the dollar's strength is affecting other currencies, see our analysis of how the Aussie and Kiwi dollars are sliding as Fed rate expectations outpace local central banks.
What this means for investors
For everyday investors, the key takeaway is that the AI rally in Asia is not immune to broader macroeconomic forces. A stronger dollar and higher US yields typically hit emerging markets first through currencies. If the exchange rate weakens, policymakers may tighten financial conditions to steady it, which raises local borrowing costs and the price of hedging dollars. That can fade equity rallies by lifting the "extra" return investors demand to hold riskier assets, especially in markets with meaningful foreign ownership.
Indonesia already shows the pattern: a soft rupiah, higher local yields, and sizable foreign outflows. By contrast, places benefiting directly from the AI trade, like Taiwan via TSMC, can see stocks hold up even while the region's currency backdrop turns less supportive. This divergence is likely to continue as long as the dollar remains strong and US rates stay elevated.
Investors should also keep an eye on geopolitical developments. The US-Iran stalemate has added a layer of uncertainty that could persist, particularly if it pushes oil prices higher. Higher energy costs can squeeze margins for companies across Asia and add to inflationary pressures, complicating the outlook for central banks in the region. For more on how this is affecting commodities, see our report on oil edging up as Iran refuses US talks.
Ultimately, the AI rally in Asia is not over—the MSCI EM Asia index is still up more than 30% in three months—but the path forward may be bumpier. Investors will be watching currency markets, central bank actions, and any signs of a shift in Fed policy for clues about whether the region can sustain its momentum. For a broader perspective on how global markets are reacting, check out our coverage of Asia stocks pausing after the AI rally as the dollar strengthens on the Iran stalemate.
