Dollar Firms as Middle East Tensions Pressure Asian Currencies

The U.S. dollar strengthened against a basket of Asian currencies on Tuesday, driven by investor demand for safe-haven assets amid escalating geopolitical tensions in the Middle East. The U.S. Dollar Index hovered near a one-week high as the conflict fueled a surge in oil prices, creating headwinds for the region's energy-importing nations.

Geopolitical Risks Drive Safe-Haven Flows

Market caution has intensified following reports from U.S. Central Command of sustained strikes against Iranian-backed targets and a naval blockade announced by Yemen's Houthi group, according to the source. These developments have pushed crude oil prices near six-week highs, raising concerns over supply disruptions.

For many Asian economies that are net importers of energy, higher oil costs can worsen trade balances, stoke imported inflation, and deter foreign capital inflows. The dollar's appeal was further supported by elevated U.S. Treasury yields, with the benchmark 10-year note holding around 4.59%.

Regional Currencies Under Pressure

Most regional currencies traded lower against the dollar, reflecting the risk-off sentiment and higher energy costs.

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• Japanese Yen (JPY): The yen remained near multi-decade lows, with the USD/JPY pair trading at 162.51, as the wide gap between U.S. and Japanese interest rates continued to favor the dollar.
• Chinese Yuan (CNY): The onshore and offshore yuan were little changed after China's central bank left benchmark lending rates on hold, signaling a preference for targeted fiscal support over broad monetary easing.
• Southeast Asian Currencies: The Thai baht (THB), Indian rupee (INR), Indonesian rupiah (IDR), and Philippine peso (PHP) all weakened. The previous session saw reported central bank intervention to support the rupee.

Won and Kiwi Dollar Outperform

In contrast to the broader trend, the South Korean won and New Zealand dollar showed resilience. The USD/KRW pair rose only marginally to 1,476.55, as the won was supported by optimism over South Korea's recently announced foreign-exchange liberalization measures. According to Citi, headwinds from capital outflows are beginning to fade for the currency.

The New Zealand dollar was the region's top performer, with the USD/NZD pair falling 0.5% to NZ$0.5864. The currency rallied after data showed annual inflation accelerated to 4.1% in the second quarter, a two-and-a-half-year high that beat expectations and increased the odds of a central bank rate hike.

Looking ahead, market participants are watching for Wednesday's Bank Indonesia policy decision and key economic data from South Korea, Australia, and Singapore. However, the primary focus is on next week’s U.S. Federal Reserve meeting for fresh guidance on the interest-rate outlook.