The U.S. dollar remained near a one-month high on Wednesday as Asian currencies moved within limited ranges ahead of the Federal Reserve's interest-rate decision. Heightened geopolitical tensions and a softer-than-expected Australian inflation reading were central to market flows.
Dollar benchmark - The U.S. Dollar Index was trading around 101.3, close to its strongest level in about a month, reflecting continued demand for the safe-haven currency.
Australian data weakens AUD - The AUD/USD pair fell roughly 0.4% after Australia's consumer price reading came in below market expectations. The softer inflation print markedly reduced the market's probability of another Reserve Bank of Australia rate increase, prompting the Australian dollar to underperform among regional peers. New Zealand's dollar also slipped, with NZD/USD trading modestly lower.
Other Asian moves - The USD/KRW pair fell about 0.6%, leaving the South Korean won trading near its strongest level since May 6. The Chinese onshore USD/CNY pair traded in a narrow band, while the offshore USD/CNH was little changed as investors awaited clearer direction from the Federal Reserve before making larger directional bets across Asian FX.
Major crosses - The EUR/USD edged up after having hit a one-month low in the prior session. By contrast, GBP/USD remained close to its weakest point since early July, showing limited upside ahead of further central bank cues.
Oil and geopolitics - Oil prices stayed elevated after Iran launched new missile attacks targeting U.S. forces in the Middle East, ending a relative lull that followed previous ceasefire efforts. The renewed hostilities lifted safe-haven demand and revived concerns about potential inflation pressures just hours before the Fed's policy announcement.
Market expectations for the Fed - Markets were pricing roughly a 33% chance of a 25-basis-point Fed rate increase, though the prevailing view remained that policymakers were widely expected to leave interest rates unchanged at the upcoming decision. Investors were therefore parsing both incoming data and central bank language for any shift in the outlook.
Strategist views and central bank focus - Philip Wee, a senior FX strategist at DBS, said markets remained split over whether Fed Chair Kevin Warsh would validate recent dollar strength. He noted that investors had accumulated long-dollar positions on the view that higher oil prices could keep inflation elevated. Wee warned there was a risk that some of those positions could unwind if the Federal Reserve did not deliver a sufficiently hawkish message or signal an additional rate increase in September.
Attention was set to move later in the week to other major central banks, with the Bank of Japan and the Bank of England both scheduled to make policy announcements.
Emerging market and regional nuances - Indonesia's rupiah remained under scrutiny after Bank Indonesia Governor Perry Warjiyo unexpectedly resigned earlier in the week, prompting questions about policy continuity. Despite the sudden leadership change, Citi strategist Rohit Garg said the bank continued to see scope for rupiah strength, retaining a constructive stance by holding short USD/IDR positions. Garg suggested recent rupiah weakness appeared driven more by speculation around the governor's departure than by a decline in Indonesia's economic fundamentals, and he said focus was shifting to policymakers to reassure investors and preserve confidence in monetary policy continuity.
Elsewhere in the region, the Philippine peso's USD/PHP pair moved a bit lower, while USD/SGD was broadly steady. USD/INR was little changed after recent gains, and the Thai baht (USD/THB) and Malaysian ringgit (USD/MYR) traded in tight ranges as market participants awaited fresh guidance from the Federal Reserve.
Bottom line - With the Fed decision imminent, the dollar was anchored near month-long highs, Asian currencies generally held narrow ranges, and the Australian dollar was among the larger decliners after weaker-than-expected local inflation. Renewed U.S.-Iran hostilities and higher oil prices added a risk premium that reinforced safe-haven demand and kept investors cautious ahead of central bank guidance.