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Japanese Yen Weakens on BOJ Policy Split as Strong Dollar Pressures Asian Currencies

Summary
The Japanese yen fell after Bank of Japan meeting minutes revealed divisions on future rate hikes, while a strong U.S. dollar, buoyed by high Treasury yields, exerted broad pressure on most other Asian currencies.
The Japanese yen weakened on Thursday after the Bank of Japan's latest meeting summary revealed a split among policymakers on the path for future interest rate hikes. Meanwhile, the U.S. dollar held near a two-month high, creating a mixed performance for other regional currencies as elevated Treasury yields continued to support the greenback.
Yen Slips on Divided BOJ Outlook
The yen came under pressure after the summary of the Bank of Japan's (BOJ) September meeting showed diverging views on monetary policy. Some board members advocated for accelerating rate increases, while others urged caution, citing contracting domestic demand despite positive headline growth. This uncertainty led to a decline in market expectations for a near-term policy shift.
The USD/JPY pair rose 0.5% to 158.15, with the yen touching a two-week low. According to market pricing, the probability of a BOJ rate hike by October 30 has fallen to less than 20%, though a December increase is still fully priced in by investors.
Dollar Strength Persists
AdThe U.S. dollar remained firm, with the dollar index trading around 101.58. The greenback posted its strongest monthly gain since June, supported by a surge in U.S. Treasury yields driven by concerns over government debt and persistent inflation. This strength has continued even as softer-than-expected U.S. inflation data recently reduced expectations for a Federal Reserve rate hike in October.
Mixed Performance Across the Region
The strong dollar and specific domestic factors drove varied results for other major Asian currencies.
- South Korean Won: Despite a record-breaking 83.5% year-on-year surge in September exports, the won remained under pressure. The USD/KRW pair gained 0.2% to 1,359.80 as the dollar's strength overshadowed the positive trade data.
- Australian Dollar: The AUD/USD pair hovered near a two-month low around $0.69. The currency was weighed down by data showing Australia's trade surplus narrowed sharply to A$495 million in August, far below the A$2 billion forecast and a day after the RBA raised its cash rate to 4.60%.
- Other Currencies: The Indonesian rupiah was notably weaker, with the USD/IDR pair rising 0.67% amid pressure from the dollar, U.S. yields, and high oil prices. Trading in the Chinese yuan was subdued ahead of the week-long National Day holiday, which is expected to reduce regional market liquidity.
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