The US Dollar (USD) gained ground against both the Australian Dollar (AUD) and Japanese Yen (JPY) during Asian trading on Wednesday, driven by uncertainty over the Federal Reserve's (Fed) interest rate outlook and heightened geopolitical tensions in the Middle East [1][2]. The AUD/USD pair depreciated to around 0.7060 after modest gains the previous day, as traders awaited a crucial US inflation report expected to influence the Fed's next rate decision [1]. Market expectations for a 25-basis-point Fed rate hike in September softened to nearly 48%, down from 52% the previous day, according to the CME FedWatch Tool [1]. Meanwhile, the USD/JPY pair touched a one-and-a-half-week high, with bulls aiming to push the pair beyond the mid-159.00s, as the wide rate gap between Japan and other major economies continued to fuel the carry trade and undermine the JPY [2].
Geopolitical uncertainty, particularly regarding a potential diplomatic deal between the US and Iran over the Strait of Hormuz, provided additional support for the Greenback. While reports indicated progress in negotiations, US President Donald Trump’s insistence on reparations from Tehran injected renewed caution into markets [1]. Rising crude oil prices, driven by these tensions, have also contributed to arguments for a more aggressive Fed policy stance, though the probability of a near-term hike has slightly decreased [1][2].
On the Australian front, the Reserve Bank of Australia (RBA) unanimously held the cash rate at 4.35% in August. Major forecasters remain divided: MUFG warned that surging energy prices could force an RBA hike as early as September, while Westpac described the decision as a 'hawkish hold' but noted that softer domestic data weakened the tightening bias. NAB, on the other hand, forecasted steady growth and a hold through 2026 before mid-2027 cuts [1]. BNY’s Wee Khoon Chong highlighted that domestic financial conditions have tightened, consumer spending is slowing, housing momentum has softened, and labor market conditions have eased more than expected, reinforcing a cautious outlook for the AUD [1].
In Japan, the initial impact of the first US-Japan joint intervention since 1998 has faded, and concerns about Japan's fiscal condition have grown due to Prime Minister Sanae Takaichi's aggressive stimulus and tax cuts [2]. The Reuters Tankan survey showed improved sentiment among Japanese manufacturers (index up to 18 in August from 13 in July) and non-manufacturers (up to 28 from 25), marking the highest levels since March 2026 [2]. Despite a 66% chance of a Bank of Japan (BoJ) rate hike in September, according to Tokyo Tanshi data, the JPY remains under pressure [2].
Traders are cautious ahead of the US Consumer Price Index (CPI) report due later today, which, along with Thursday’s Producer Price Index (PPI), is expected to influence market expectations about the Fed's future policy path and drive USD demand [1][2]. Further developments in the Middle East crisis are also anticipated to impact the USD and related currency pairs [2].
CONCLUSION
The US Dollar's strength against both the Australian Dollar and Japanese Yen reflects ongoing uncertainty over the Fed's rate trajectory and heightened geopolitical risks. Market participants are closely watching upcoming US inflation data and developments in the Middle East for further direction. Divergent central bank outlooks and economic conditions in Australia and Japan continue to shape currency movements, with high market sensitivity to both domestic and global events.