Currency market movements in recent sessions have become increasingly tied to developments in Japan rather than to a broad shift in sentiment toward the US dollar. Sterling and the euro posted limited declines against the American currency, but those moves did not reflect any major change in the fundamentals of the UK economy or the eurozone. The main pressure came from the rapid appreciation of the yen, which pushed USD/JPY from above 155 to near 153 within a short period, while thin liquidity amplified the move. Markets are now repricing the expected path of Japanese interest rates at a faster pace, particularly as expectations grow for further tightening by the Bank of Japan and for major domestic institutions to increase their holdings of Japanese assets.
Despite the yen’s recent strength, the 152 area in USD/JPY will be an important test for the continuation of the move. A break below this level could push the pair toward 150, although further declines will not depend on Japan alone. The dollar continues to receive support from the strength of the US labor market and rising energy prices, especially with Brent crude approaching $100 per barrel. Oil at these levels adds to inflationary pressure and gives the Federal Reserve more room to maintain restrictive monetary policy or even return to rate hikes if upcoming data support such a move. This makes the next US inflation report one of the most important drivers for the dollar. A stronger than expected reading could quickly restore support for the US currency, while a weaker reading could deepen the current decline in yields and the dollar.
Sterling, for its part, did not fall because of a major change in UK economic conditions. Instead, the pound remained largely influenced by moves in the dollar and the yen. A more disciplined fiscal stance signaled by the UK Chancellor provided some support, but it was not enough to alter the broader picture. At the same time, market expectations for Bank of England policy appear more hawkish than necessary, which limits the pound’s upside potential in the near term and supports the relative strength of EUR/GBP. The euro also gained little from the upward revision in eurozone second quarter growth to 0.6%, as much of the improvement was driven by the activity of multinational companies in Ireland, while higher energy prices continue to weigh on the European economy and the region’s goods trade balance.
The broader outlook for the euro remains more closely linked to US monetary policy than to European data alone. ING expects EUR/USD to fall toward 1.150 in the coming weeks if the Federal Reserve raises interest rates in September. That view is unlikely to change unless US inflation data come in significantly below expectations or the Fed adopts a clearly more dovish stance. For sterling, any strong recovery would first require a reassessment of market expectations for the Bank of England’s policy path.
In Japan, markets now appear almost convinced that the Bank of Japan will raise interest rates at its upcoming meeting, potentially to 1.25% according to Citi estimates. However, the rate decision itself may not be enough to move the yen if it is already fully priced in. Attention will therefore shift toward the voting outcome within the Policy Board. Clear opposition from members viewed as supportive of a more accommodative economic stance could suggest that the central bank still faces political pressure to limit tightening, potentially sending the dollar back toward 155 yen. A unanimous decision, however, could send a stronger signal that the Bank of Japan has greater room to continue normalizing monetary policy.
The interest rate differential between the United States and Japan remains the most important factor for the yen over the medium term. If that gap continues to narrow, yen funded carry trades will become less attractive, potentially leading to a broader unwinding of such positions and supporting the Japanese currency for a longer period. On the other hand, any hawkish surprise from the Federal Reserve could temporarily interrupt that trend and push the dollar higher against the yen. Even if US interest rates remain unchanged, improved risk appetite and stronger equity markets could limit the yen’s appreciation.
Japanese economic data have also provided clear support for the yen. Annualized gross domestic product growth for the second quarter was revised higher to 1.4%, strengthening expectations for another Bank of Japan rate hike. At the same time, comments from central bank officials have become more hawkish, while coordination between Tokyo and Washington over foreign exchange markets continues. The recent joint intervention gave the yen a strong boost, but the scale of Japan’s spending, which reached around 15 trillion yen in less than a month, confirms that authorities still view the currency’s level as an issue of economic and political importance.
In the United States, the strong jobs report has significantly changed market expectations. The economy added 162,000 jobs in August compared with forecasts of 55,000, while unemployment remained steady at 4.1% and data for the previous two months were revised higher. These figures suggest that the labor market remains stronger than markets had expected. With inflation still elevated, the possibility of another rate hike has become more realistic, with market expectations for a 25 basis point increase rising to around 60%. This environment supports the dollar through interest rate differentials but also makes the next inflation figures more important than usual.
Bond markets have already started to reflect this shift. The two year US Treasury yield rose to 4.381%, while the ten year yield held near 4.795%. These elevated levels reflect expectations that the Federal Reserve may need to keep monetary policy restrictive for longer. With oil nearing $100 per barrel, the risk of renewed inflation caused by higher energy costs is returning to the forefront, making it more difficult for the central bank to ease policy even if economic growth begins to slow.
Oil approaching the $100 level is not simply a move in the energy market. It has a direct impact on inflation expectations, bond yields and the dollar. Any sustained move above this area could push investors to raise their expectations for US interest rates again, supporting both the dollar and short term yields. In contrast, a clear decline in energy prices or a softer than expected inflation reading could ease these pressures and allow competing currencies to regain some strength.
Overall, currency markets are currently being driven by three main factors: the Bank of Japan’s tightening path, the Federal Reserve’s upcoming decision and the direction of energy prices. The yen is benefiting from the potential narrowing of interest rate differentials, while the dollar remains supported by the strength of the US economy and elevated yields. The euro and sterling, meanwhile, are being driven more by these external forces, with domestic data having a relatively limited impact on the broader trend.
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