Dollar Holds Near Two-Month High as Yen Slides and Australian Dollar Awaits RBA Decision

Asian currencies showed a mixed performance on Tuesday as the U.S. dollar held firm near a two-month high, buoyed by surging Treasury yields and expectations for further Federal Reserve tightening. The Japanese yen slid toward recent lows despite official warnings against excessive weakness, while the Australian dollar held steady ahead of a widely anticipated interest rate decision.

Dollar Strength Driven by Yields and Fed Bets

The U.S. dollar's strength was underpinned by a significant selloff in government bonds that has pushed Treasury yields to multi-year highs. The 10-year Treasury yield climbed to its highest level since 2007, while the 30-year yield reached a peak not seen since 2004. These higher yields increase the appeal of dollar-denominated assets for investors seeking returns.

The U.S. dollar index, which measures the greenback against a basket of currencies, traded around 101.21. According to the source material, the index is on track for a 1.8% gain in September. Market focus is now turning to key U.S. economic data, including the PCE price index and nonfarm payrolls, for further clues on the Fed's policy path. Markets are reportedly pricing in more than a 70% probability of a Fed rate hike in October.

Yen Weakens Despite Intervention Warnings

The Japanese yen weakened, with the USD/JPY pair trading around 157.36. The currency's decline comes after Japan's top currency official, Atsushi Mimura, warned markets against excessive yen weakness, calling the message from Japan and the U.S. "very clear," according to the source. While the yen briefly strengthened on Monday following the comments, the gains quickly faded.

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The yen's vulnerability reflects the widening gap in monetary policy between a hawkish Federal Reserve and a still-accommodative Bank of Japan. The source also noted that Japanese Finance Minister Satsuki Katayama and U.S. Treasury Secretary Scott Bessent had reaffirmed their view that the yen was undervalued.

Australian Dollar in Focus Ahead of RBA

The Australian dollar was little changed, trading around $0.70 as investors awaited the Reserve Bank of Australia's (RBA) policy decision later on Tuesday. The central bank is widely expected to raise its cash rate by 25 basis points to 4.60%, its highest level since 2011.

However, the Australian dollar has struggled to gain significant traction, as much of the expected RBA tightening is reportedly already priced into the market. Furthermore, elevated U.S. Treasury yields have narrowed Australia's interest rate advantage, limiting upside for the currency. Other regional currency movements included:

• The New Zealand dollar (NZD/USD) was around $0.5675.
• The offshore yuan (USD/CNH) and onshore yuan (USD/CNY) both declined 0.1% to 6.71.
• The South Korean won (USD/KRW) strengthened slightly to 1,357.54.