During Thursday's Asian session, the US dollar traded above 157.00 against the Japanese yen, with volatility narrowing noticeably and continuing the sideways consolidation seen since the start of the month.
The core tension currently lies in the fact that the wide US-Japan rate differential and the Bank of Japan's cautious stance continue to weigh on the yen, while Governor Kazuo Ueda's hawkish comments and intervention expectations prevent one-sided yen weakness; at the same time, the dollar itself lacks offensive momentum due to falling US Treasury yields.
These three forces intertwine, giving the pair a typical "capped upside, floored downside" wait-and-see character.
From the yen's perspective, divergence over the policy path remains the dominant factor.
The wide US-Japan rate differential combined with the BOJ's cautious stance keeps yen bulls constantly on the defensive and provides an upward tailwind for USD/JPY.
According to people familiar with the matter, BOJ officials currently lean toward avoiding a rare consecutive rate hike this month.
This inclination directly weakens market bets on October tightening and is a key reason why the yen has struggled to attract substantive buying even during this round of broad dollar retracement.
However, BOJ Governor Kazuo Ueda said earlier this week that underlying inflation is now very close to the central bank's 2% target, hinting that another rate hike could come as early as December.
This remark preserves medium-term support for the yen and creates a clear time gap with expectations of "no hike this month": the combination of short-term easing and medium-term tightening makes the yen's trajectory more dependent on data validation rather than sentiment.
Meanwhile, speculation that Japanese authorities may step in to support the yen has also effectively restrained aggressive short positioning in the yen.
This intervention expectation forms an invisible ceiling on the technical level — once the exchange rate rises rapidly and approaches key psychological thresholds, intervention risk rises significantly, thereby curbing bulls' willingness to chase.
For USD/JPY, this means any upside breakout is more likely to encounter policy resistance, further compressing the trading range.
In addition, the dollar itself is hovering near the three-week low touched on Tuesday, with falling US Treasury yields eroding its appeal and further limiting USD/JPY's upside.
Geopolitical uncertainty, meanwhile, provides a floor from the other side.
The market is increasingly accepting the view that the Federal Reserve will raise rates again amid inflation concerns triggered by oil price volatility, which limits any deep dollar correction.
At the same time, concerns over escalating Middle East tensions keep geopolitical risk premiums in place, providing a tailwind for the safe-haven dollar and limiting USD/JPY's downside.
At least 18 attacks on commercial vessels have occurred in the Strait of Hormuz over the past two weeks, with Brent crude holding above $109.55.
Elevated oil prices push up global inflation readings through cost channels, reinforcing the case for major central banks to keep rates high and thereby lifting the central bank for real interest rates.
For USD/JPY, this is an environment of "rate differential support with risk appetite intact": as long as the year-end tightening path is not disproven, any pullback in the pair is closer to a technical correction than a trend reversal.
The timing of event risks further intensifies the market's wait-and-see mood.
The Fed is scheduled to announce its rate decision after concluding its two-day monetary policy meeting on October 28, followed by the BOJ meeting on October 29-30.
Before the two central bank decisions land, traders appear reluctant to build aggressive directional positions, choosing instead to wait on the sidelines.
This outlook will play a key role in providing meaningful impetus to the dollar index and help determine the next directional move.
In other words, in the current time window, any one-sided breakout is more likely to be interpreted as position adjustment rather than fundamental drivers, which is the direct reason the pair keeps hovering around 158.00 without smooth momentum.
For investors, this means that before the meetings conclude, a range-based approach is more prudent than a trend-based one, and the win rate for chasing rallies and selling dips drops significantly.
From the perspective of global market linkages, the current USD/JPY fluctuation is essentially a superposition of three threads: first, proactive dollar weakness driven by falling US Treasury yields and expectations of standing pat next week; second, passive support from safe-haven buying due to high oil prices and Middle East tensions; third, structural yen weakness shaped by the BOJ's gradual path of "no hike this month, possible hike in December."
It is worth noting that this week's fiscal turbulence in the euro area — with the French 10-year OAT yield breaking above 5% intraday — and UK inflation rising to an 11-month high, fueling BOJ rate hike expectations, are also indirectly disturbing the pair's short-term rhythm through the dollar index channel.
This multi-currency tug-of-war determines that USD/JPY is more likely to digest divergences within a wide range rather than launch a smooth one-sided move.
On the daily chart, USD/JPY is trading below the 100-day simple moving average and the 50.0% Fibonacci retracement of the latest swing from 152.91 to 164.06, indicating that the rebound remains constrained by the aforementioned overhead barrier, and as long as the pair stays below it, the upside remains fragile.
Upside resistance is seen at the 50% retracement around 158.48, the 61.8% Fibonacci level around 159.80, and 161.67, with the recent high of 164.06 above that; only a daily close effectively above 158.48 would ease the current bearish bias and open room for a push toward 159.80.
On the downside, support is first seen at the 38.2% retracement around 157.00, followed by 155.54, with the structural floor anchored at 152.91; an effective break below that level would open deeper correction space.
On the 4-hour chart, the pair is consolidating narrowly between 157.000 and 158.30, with short-term moving averages converging and the MACD histogram near the zero line, suggesting momentum is turning neutral; if 157.00 gives way on volume, the pair may seek support toward 156.50; an upside breakout requires cooperation from the BOJ decision and Fed signals, and until then a range-based approach is advisable to avoid chasing rallies and selling dips.
Editor's Summary
The core tension in USD/JPY in the short term is that the US-Japan rate differential and the BOJ's cautious stance weigh on the yen, while Kazuo Ueda's hawkish remarks, intervention expectations, and geopolitical premiums limit the pair's downside; these two-way drivers make it more likely that the pair will consolidate within the 157.00-158.48 range, awaiting a central bank breakthrough.
Looking ahead, three variables warrant close attention: first, the Fed's October 28 decision and statement wording, which will be the decisive factor for the dollar's medium-term direction; second, the BOJ meeting on October 29-30, where Kazuo Ueda's framing of the December rate hike path will directly determine the yen's rebound strength; third, the Strait of Hormuz shipping situation and US-Iran negotiation progress, as any substantive escalation could re-energize the dollar through inflation and safe-haven channels.
In the medium term, before the 157.00-158.48 range is effectively broken, the pair will maintain a consolidating pattern, and confirmation of a directional trend still requires the final clarity of the two central banks' policy guidance and the year-end rate hike path.
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