On Tuesday, the USD/JPY pair traded near 157.70, extending its recovery after bouncing from a more-than-one-month low. The core tension for the pair lies in the fact that the dollar is simultaneously supported by two forces — an unrefuted hawkish stance and a Middle East geopolitical risk premium — while the yen remains under persistent pressure from active carry trades. The combination produces a tug-of-war dynamic where gains face resistance and dips find buyers, with the key dividing line concentrated at the 200-period EMA around 157.81.
From the yen side, the persistence of carry trades constitutes the primary driver of this round of weakness. The market widely expects the Bank of Japan to hold off on aggressive rate hikes, which keeps the interest rate differential tilted in favor of the dollar and allows carry funds to maintain positions in a relatively safe environment. The key to this logic is that yen weakness does not stem from an absolute deterioration in Japan's economy, but rather from a relative lag in policy pace. As long as the BOJ does not release a clear tightening signal, carry trades lack any reason to unwind, and any yen rebound is easily met with selling pressure at relatively low levels. This is the structural reason why the pair, after rebounding from 156.00, has consistently failed to break cleanly through 157.81 — it is not a lack of sellers below, but a lack of catalysts that could convince the market a policy shift is imminent. For investors, this means Friday's BOJ meeting is more decisive for the pair's medium-term direction than the Fed decision: the former concerns the trend, while the latter mainly affects the tempo.
However, this pricing structure dependent on carry trades also carries inherent fragility. Should the BOJ release a more hawkish signal than expected at Friday's meeting, or should global risk sentiment deteriorate rapidly due to a sudden geopolitical shift, the deleveraging process in carry positions often unfolds faster than the accumulation did, triggering an accelerated yen appreciation. Historically, such scenarios typically manifest as a sharp initial drop followed by consolidation: the pair first reacts violently to the policy surprise, then reprices based on rate differentials. This suggests investors should avoid one-sided bets ahead of the meeting and instead wait for the market to complete its first round of emotional release before assessing the trend.
Additionally, the yen's safe-haven attribute has not been effectively activated during this round of Middle East tensions — capital has favored the Swiss franc and U.S. Treasuries over the yen. This phenomenon of a "failed safe-haven property" further confirms that the yen's current pricing focus has settled entirely on the interest rate side rather than the risk sentiment side.
The dollar side, meanwhile, provides proactive support. As the market increasingly accepts the expectation that the Federal Reserve will maintain its hawkish stance, the dollar has attracted follow-through buying for a third consecutive trading day, underpinned by inflation concerns triggered by elevated energy prices. Fed Chairman Warsh's recent remarks, while slightly softer in tone, remained cautious — he acknowledged being "too deeply scarred by the global financial crisis," emphasized structural growth and policy-driven investment surges, viewed artificial intelligence as a short-term demand-side force, and refused to pre-judge the October and December decisions. The FXS Fed Sentiment Index held steady at a high of 127.51, indicating that the overall policy narrative remains firmly in hawkish territory. For USD/JPY, this is an environment of "no short-term catalyst, but medium-term tailwinds": a hold on Wednesday is widely expected and unlikely to provide incremental upside, yet the unrefuted stance on stubborn inflation means any yen rebound is easily blocked at relatively low levels. Moreover, Thursday's preliminary U.S. third-quarter GDP and PCE price index data are direct evidence to verify U.S. economic resilience and inflation stickiness — if the data comes in stronger than expected, it could weaken the narrative basis for falling Treasury yields, thereby providing further upward momentum for the dollar.
On the geopolitical front, complex disturbances arise from another direction. The persistent geopolitical risk premium from Middle East tensions provides additional support for the safe-haven dollar and reinforces the case for further USD/JPY appreciation. However, the transmission mechanism here needs clarification: the impact of geopolitical conflict on USD/JPY is bidirectional. On one hand, it drives up oil prices and inflation expectations, reinforcing the case for the Fed to keep rates high. On the other hand, if the conflict escalates and triggers a sell-off in global risk assets, the yen would theoretically gain buying support from its safe-haven property. Current market performance shows the first transmission chain is dominant — capital places more weight on a higher interest rate center than on safe-haven diversion. This also explains why USD/JPY has clearly outperformed EUR/USD and GBP/USD during this round of tensions: the latter two face the dual blow of energy-imported inflation and growth discounts, while USD/JPY mainly benefits from rate differentials and safe-haven diversion effects.
From a cross-asset perspective, current USD/JPY fluctuations are essentially a superposition of four threads: first, proactive carry-trade suppression from the BOJ holding off on aggressive hikes; second, a dollar floor formed by the unrefuted Fed hawkish stance; third, the rate narrative reinforced through the inflation channel by elevated energy prices; and fourth, bidirectional disturbances from geopolitical risk premiums. Notably, the same round of oil price increases acts in different directions across currency pairs — it is a stagflationary drag on the euro, a commodity-attribute support for the Canadian dollar, and a rate-hike-expectation reinforcement through the inflation channel for the pound. This divergence is precisely the structural reason for the disparate performance among G10 currencies this month: what determines net direction is not a single event, but the relative strength of forces along each transmission chain. Investors should not view USD/JPY's unilateral moves in isolation, but rather assess it within the "oil price—inflation—rate differential—exchange rate" transmission chain.
On the daily chart, USD/JPY trades at 157.70, rising for a third consecutive session, but the price remains constrained by the 200-period exponential moving average, with an overall bias that is neutral-to-bullish though momentum has yet to strengthen; the 23.6% Fibonacci retracement at 157.63 provides initial cushioning and defines the upper boundary of the corrective retracement zone, indicating the pair is at a critical juncture of "building momentum for a breakout." Upside resistance is watched at the 200-period EMA around 157.81, followed by the cycle high near 159.07 — only a reclaim of that level would materially ease the bearish structure and open space for an attack on higher levels. Downside support first looks to the 23.6% retracement at 157.63, followed by a dense Fibonacci cluster: the 38.2% retracement at 156.74 and the 50.0% retracement at 156.02, with deeper levels at 155.30 and 154.28.
On the 4-hour chart, the pair is slowly grinding higher along short-term moving averages, with the MACD histogram hugging just above the zero line and the fast and slow lines repeatedly tangling — momentum is weak but biased neutral-to-bullish; the price is currently oscillating in a narrow band between 157.60 and 157.85. If a pullback to 157.60—157.70 finds support, there may still be an opportunity for another push toward 157.90—158.20 in the short term; if 157.63 is breached on volume, the pair could seek support at 156.74 or even 156.02; an upside breakout requires coordination from the Fed decision and BOJ signals, and until then a range-bound approach is advisable, avoiding chasing rallies or selling dips.
Summary
The core tension in USD/JPY in the near term is that the BOJ holding off on rate hikes keeps carry trades active and suppresses the yen, while the unrefuted Fed hawkish stance and geopolitical risk premium support the dollar — the two-way driver makes it more likely the pair will build momentum within the narrow band of 157.63—157.81, awaiting a breakout from central bank meetings. Three variables warrant close attention going forward: first, Wednesday's Fed decision, policy statement, and Warsh's press conference wording — the characterization of inflation pressure will directly determine the tightness of the dollar's rate floor; second, Thursday's preliminary U.S. third-quarter GDP and PCE price index, which directly verify U.S. economic resilience and inflation stickiness, thereby affecting Treasury yield direction; third, Friday's BOJ policy update and forward guidance, which is the primary criterion for judging whether carry trades can continue and whether the yen will see a policy shift. Additionally, Brent and WTI crude oil trends, Hormuz Strait transit conditions, and Middle East developments should also be tracked simultaneously, as they act on both the inflation expectation and safe-haven diversion transmission chains.
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