Asian currencies traded mixed on Tuesday as the US dollar remained close to a two-month high. Rising Treasury yields, elevated oil prices and expectations for further Federal Reserve tightening continued to influence foreign exchange markets.
The Japanese yen weakened toward recent lows, while traders remained alert to the possibility of intervention from Japanese authorities. Meanwhile, the Australian dollar remained in focus following the Reserve Bank of Australia’s latest interest-rate increase.
US Dollar Holds Near Two-Month High
The US dollar index traded around 101.21 after briefly reaching 101.27.
The dollar is on course for a gain of roughly 1.8% in September, which would represent its strongest monthly performance since June.
Higher US Treasury yields have supported the currency, while persistent geopolitical uncertainty has also increased demand for the dollar.
However, investors remained cautious ahead of important US economic data that could provide new clues about the Federal Reserve’s next move.
Treasury Yields Strengthen the Dollar
A sharp selloff in US government bonds has pushed Treasury yields to multi-year highs.
The benchmark 10-year Treasury yield recently reached its highest level since 2007. Meanwhile, the 30-year yield climbed to levels not seen since 2004.
Higher yields generally make dollar-denominated assets more attractive to investors. As a result, expectations that US interest rates could remain elevated have provided additional support for the dollar.
Still, the impact has been partly limited because bond yields have also risen across other major economies.
Fed Rate Expectations Remain in Focus
Upcoming US economic data could determine whether expectations for another Federal Reserve rate hike strengthen further.
Investors are watching inflation and employment indicators particularly closely. Stronger-than-expected economic data could reinforce the case for keeping monetary policy restrictive.
Markets have recently increased their expectations for another Federal Reserve rate increase as persistent inflation and resilient economic activity keep pressure on policymakers.
Yen Weakens as Intervention Risks Return
The Japanese yen traded around 157.36 against the dollar after surrendering much of its earlier recovery.
Japan’s top currency diplomat, Atsushi Mimura, recently warned traders to pay attention to what he described as a clear signal from Tokyo and Washington regarding excessive yen weakness.
The yen had previously strengthened to around 156.51 per dollar following those comments before reversing much of the move.
Japanese officials have repeatedly expressed concern about rapid currency depreciation and excessive foreign exchange volatility.
Japan and US Discuss Yen Weakness
Japanese Finance Minister Satsuki Katayama and other officials have also highlighted cooperation between Japan and the United States over currency developments.
US President Donald Trump had expressed concern about the weak yen during discussions with Japanese Prime Minister Sanae Takaichi, according to Japanese officials.
Japan and the United States have continued discussions about excessive currency movements, keeping intervention risks firmly on traders’ radar.
RBA Raises Interest Rates to 4.60%
The Australian dollar remained in focus after the Reserve Bank of Australia raised its cash rate by 25 basis points to 4.60%.
The increase took Australian interest rates to their highest level in 15 years and marked the fourth rate hike of 2026.
The RBA cited persistent inflation pressures as an important reason for tightening monetary policy further.
However, the Australian dollar’s response was relatively limited because markets had largely anticipated the increase before the announcement.
Australian Dollar Struggles for Momentum
The Australian dollar traded close to the $0.70 level against the US dollar.
Although higher Australian interest rates would normally support the currency, expectations for additional Federal Reserve tightening have reduced Australia’s relative interest-rate advantage.
Elevated US Treasury yields have also helped keep demand for the dollar strong.
Asian Currencies Trade Mixed
Elsewhere in Asian foreign exchange markets, movements remained relatively limited.
The New Zealand dollar traded near $0.5675, while both the onshore and offshore Chinese yuan strengthened modestly against the dollar.
The South Korean won also gained slightly, while the Indian rupee was under pressure as higher oil prices increased concerns for energy-importing economies. Reuters reported that the rupee weakened beyond 96 per dollar amid rising crude prices and portfolio outflows.
The Singapore dollar also weakened slightly against its US counterpart.
Oil Prices Add to Currency Market Uncertainty
High oil prices remain another important factor for Asian currencies.
Brent crude has traded above $100 per barrel as markets monitor Middle East supply risks and developments involving the United States and Iran.
Higher energy costs can increase inflation in oil-importing economies and weaken their currencies by increasing demand for dollars to pay for energy imports.
For now, currency traders remain focused on US economic data, Federal Reserve expectations, Treasury yields and potential intervention in the Japanese yen.
