Asian currencies mixed as yen hovers near 160; oil surge raises risk-off pressures

Asian currencies fluctuated on Monday amid the Japanese yen near the 160-per-dollar mark, while heightened U.S.-Iran tensions propelled oil prices upward and increased risk-averse sentiment throughout regional markets. The U.S. dollar demonstrated strength following Federal Reserve Chair Kevin Warsh's hawkish remarks, raising the chance of a September rate increase to around 57%.

This led to a two-year U.S. Treasury yield soaring to its highest level of the year at 4.33%. The U.S. Dollar Index rose to 99.60 following a 0.6% increase on Friday. The Japanese yen's USD/JPY pair hovered around 159.83, keeping the local currency near the 160 level it had weakened through on Friday. Intervention by Japanese authorities to support the currency appears increasingly likely once the yen breaks above the 160 yen per dollar threshold.

Investors closely monitor this possibility following Japan's joint intervention with the U.S. in late July. The yen's depreciation toward 160 per dollar has reignited the prospect of further collaboration between the two nations. U.S. Treasury Secretary Scott Bessent stated that the yen's recent movements were "pretty well contained" and expressed his intention to meet Bank of Japan Governor Kazuo Ueda at the G20 meeting in North Carolina.

His comments indicate that the recent weakness has not yet reached a level warranting coordinated intervention. However, the policy gap remains an obstacle for the yen. Japanese 10-year government bond yields reached their highest level since 1996, and analysts contend that the Bank of Japan may require multiple rate hikes to provide additional support for the currency.

Markets are assigning a high probability to a September BOJ hike. Nomura's Naka Matsuzawa emphasized that the key question for the USD/JPY pair is whether its primary driver will transition from overall U.S. Treasury yields to the U.S.-Japan yield gap. A shift in the BOJ's stance, as domestic life insurers return to Japanese bonds in anticipation of a neutral policy rate, could have a substantial impact on the USD/JPY pair.

Across other currencies, the Australian dollar (USD/AUD) increased by 0.1% to approximately $0.7163, while the Singapore dollar (USD/SGD) dropped by 0.13%. The South Korean won's (USD/KRW) pair remained relatively stable at around 1,373.23, whereas the Indian rupee's (USD/INR) pair rose by 0.1%. China's yuan exhibited minimal reaction to the nation's latest economic data, with the onshore USD/CNY pair at 6.7207 and the offshore USD/CNH pair near 6.7217.

China's official manufacturing Purchasing Managers' Index (PMI) jumped to 49.8 in August, surpassing forecasts for 49.6 but still below the 50 threshold that signifies a shift from expansion to contraction. The non-manufacturing PMI also remained at 49.0. The focus now shifts to a hectic week featuring central banks and economic data releases.

New Zealand's central bank is anticipated to raise interest rates for the second consecutive meeting on Wednesday, while the Bank of Canada is expected to hold steady amidst trade tensions impacting growth. A surge in oil prices added an additional layer of pressure on Asia. Brent futures climbed by 2.8% to $90.60 a barrel following U.S. forces targeting two Iranian launchers on Larak Island.

Iran subsequently attacked U.S. forces in Jordan, fueling fresh uncertainties about the likelihood of an early peace agreement. The most significant challenge for the dollar and Asian currencies will be the upcoming release of the U.S. nonfarm payrolls report on Friday. Economists predict a rebound of 58,000 jobs after July's unexpected 23,000 decline, with unemployment remaining at 4.1%.

G20 finance ministers and central bank governors convene in North Carolina on Monday and Tuesday, with discussions surrounding inflation, interest rates, the Iran conflict, and global bond market pressure dominating the agenda.