In this week’s letter, we analyse the performance of Asian currencies so far this year. While US dollar weakness has broadly supported regional currencies, economy-specific factors have driven significant divergence (chart 1). Advanced Asian currencies—such as the Taiwan dollar, Japanese yen, South Korean won, and Singapore dollar—have outperformed, not simply due to their advanced status but because of unique domestic drivers. Conversely, currencies like the Vietnamese dong, Indian rupee, Indonesian rupiah, and Chinese yuan have lagged, reflecting country-specific challenges.
Trade exposure has been a key influence on currency movements. The wave of US tariffs has spotlighted economies’ links to the US, making export-reliant nations more vulnerable to downside risks (chart 2). Vietnam’s high exposure to US exports helps explain its currency weakness, while India remains relatively insulated overall despite significant US trade ties. Markets remain cautious as the US 90-day tariff pause nears expiry.
Investor growth outlooks have also shaped currency trends. Taiwan’s 2025 GDP forecasts were upgraded after strong Q1 data, helping explain some currency divergence (chart 3), though growth alone does not fully determine currency strength. Monetary policy developments matter too. Most Asian central banks have held or cut rates this year, except the Bank of Japan, which has tightened policy, supporting the yen (chart 4). India’s rate cuts narrowed its interest rate differentials, pressuring the rupee, while Vietnam and Taiwan saw currency moves despite steady policies, underscoring other influences.
Policy uncertainty and geopolitical risks have also remained critical. South Korea’s political instability eased after recent elections, boosting sentiment (chart 5). India has faced challenges from Middle East tensions and resulting energy price pressures. Our Asia Currency Scorecard (chart 6) summarises these dynamics: the Taiwan dollar leads on growth optimism, the Japanese yen benefits from tighter monetary policy, and the South Korean won from reduced uncertainty. In contrast, the Vietnamese dong struggles with trade exposure, the Indian rupee is weighed down by rate cuts and geopolitical risks, and the Indonesian rupiah faces pressure from past policy uncertainty and recent easing.
Asia’s currency performance The performance of Asian currencies so far this year has been mixed. A common tailwind has been the weakness of the US dollar, which has provided some support to regional currencies. However, individual economy-specific factors have driven significant divergence in overall performance. On balance, advanced Asian currencies—such as the Taiwan dollar, Japanese yen, South Korean won, and Singapore dollar—have led the pack, recording the strongest year-to-date gains on a nominal effective exchange rate (NEER) basis, as shown in chart 1. That said, their outperformance is not due to their status as advanced economies, but rather to distinct, economy-specific factors, which we will explore further. Conversely, currencies such as the Vietnamese dong, Indian rupee, Indonesian rupiah, and Chinese yuan have been among the weakest performers in NEER terms. As with the top performers, their relative weakness also stems from country-specific factors.