Asian foreign exchange markets were mixed on Monday, with the Japanese yen remaining under pressure near the 160-per-dollar level that traders watch closely. A renewed flare-up in the U.S.-Iran confrontation sent oil prices higher, adding to a broadly risk-averse tone across regional markets.
The U.S. dollar showed broad strength after Federal Reserve Chair Kevin Warsh delivered hawkish remarks that pushed traders to increase the odds of a September rate hike. Markets priced the implied probability of a September Fed move at roughly 57%, and two-year U.S. Treasury yields climbed to about 4.33%, a peak not seen in over a month. The U.S. Dollar Index traded around 99.60 after a 0.6% rise on Friday.
The USD/JPY pair was trading near 159.83, keeping the yen close to the 160-per-dollar threshold it slipped through on Friday. Market participants widely consider a sustained break above 160 as raising the prospect of Japanese authorities stepping in to defend the currency. That prospect returned to the foreground after a joint intervention by Japan and the United States in late July.
U.S. Treasury Secretary Scott Bessent described the yen's recent moves as "pretty well contained" and said he intends to meet Bank of Japan Governor Kazuo Ueda at the G20 meeting in North Carolina. Those comments signaled that authorities do not yet view the current weakness as disorderly enough to warrant coordinated intervention. Still, the policy divergence between Japan and the United States remains a persistent headwind for the yen.
Japanese 10-year government bond yields climbed to levels not seen since 1996, underlining the strain on the local currency. Some market analysts have argued that the Bank of Japan may need to execute a sequence of rate increases to provide more structural support to the yen, and markets are assigning an elevated probability to a September BOJ rate move.
Nomura strategist Naka Matsuzawa highlighted a key uncertainty for the USD/JPY dynamic: when the pair's primary driver shifts from the absolute level of U.S. Treasury yields to the U.S.-Japan yield gap. Matsuzawa suggested that if Japanese life insurers begin to repatriate investment flows into domestic bonds in anticipation that the BOJ will move policy rates toward neutral, that reallocation could markedly influence USD/JPY.
Away from the yen, other regional currencies showed a mixed picture. The USD/AUD pair rose around 0.1% to roughly $0.7163, while the USD/SGD pair fell about 0.13%. The South Korean won was broadly unchanged with USD/KRW near 1,373.23, and the Indian rupee opened about 0.1% weaker against the dollar.
China's yuan was largely unperturbed by the latest economic prints. The onshore USD/CNY traded around 6.7207 and the offshore USD/CNH near 6.7217. China's official manufacturing Purchasing Managers' Index moved to 49.8 in August from 49.2 in July, slightly above expectations of 49.6 but still below the 50 mark that separates expansion from contraction. The non-manufacturing PMI remained at 49.0.
Higher oil prices provided an additional drag on sentiment in Asia. Brent futures jumped about 2.8% to $90.60 a barrel after U.S. forces struck two Iranian launchers on Larak Island. Iran then carried out an attack on U.S. forces in Jordan, a sequence of events that has heightened uncertainty over prospects for a near-term de-escalation.
Market attention now turns to a packed calendar of central bank meetings and economic releases. New Zealand's central bank is expected to deliver a second consecutive rate increase on Wednesday, while the Bank of Canada is widely expected to hold policy steady amid trade-related headwinds to growth. For the dollar and Asian currencies, Friday's U.S. nonfarm payrolls report stands out as a major near-term test: consensus estimates call for a rebound of 58,000 jobs following July's surprise 23,000 decline, with the unemployment rate seen holding at 4.1%.
G20 finance ministers and central bank governors convene in North Carolina on Monday and Tuesday, where discussions will include inflation, interest rates, the Iran conflict and strains in global bond markets. Those gatherings and incoming data will likely shape market expectations for policy and risk sentiment over the coming days.
Market snapshot:
- USD/JPY - near 159.83
- U.S. two-year Treasury yield - about 4.33%
- U.S. Dollar Index - around 99.60
- Brent futures - about $90.60 a barrel
Investors will be watching central bank decisions, U.S. payrolls, and geopolitical developments closely as they reassess policy expectations and portfolio allocations in the days ahead.