The USD/JPY pair staged a modest rebound during Thursday's Asian trading session, hovering around the 153.50 level after temporarily distancing itself from the seven-month low touched earlier this week. With US inflation data on the horizon, some bearish traders opted to lock in profits, allowing the dollar to undergo a degree of technical correction. However, the broader structural picture remains firmly bearish for the pair, as the yen's recent outperformance continues to cap any upside attempts.

Market repricing of the Bank of Japan's policy trajectory is emerging as a central pillar underpinning the yen's strength. The market has largely priced in a 25-basis-point rate hike at the BoJ's September 17-18 meeting, and attention is now shifting toward the possibility of further tightening before year-end. Recent hawkish communications from BoJ officials, alongside improving wage growth and brighter economic projections, have reinforced the view that Japan's monetary policy normalization is accelerating. The latest policy signals have only strengthened this narrative. BoJ board member Kazuo Masai indicated that if inflation continues to accelerate, the central bank may need to act more swiftly to prevent real interest rates from remaining excessively low for an extended period. Speculation is even emerging that the BoJ could lift its policy rate to 1.25% as soon as September, with further normalization expected thereafter.

This has provided significant support for the yen, which has already appreciated notably against the dollar in recent weeks. Concurrently, Japan's domestic interest rate environment is shifting. As Japanese government bond yields climb, the long-standing environment of cheap funding and carry trades is undergoing structural change. Should the BoJ persist in raising policy rates, the Japan-US interest rate differential could narrow further, prompting additional unwinding of yen short positions and fueling further yen appreciation. This dynamic helps explain why USD/JPY remains under pressure even while US Treasury yields stay elevated.

On the dollar side, the US Dollar Index has shown some rebound after its recent slide, with traders trimming some dollar short positions ahead of the US Producer Price Index release. The PPI is scheduled for Thursday, followed by the Consumer Price Index on Friday, and both data points will directly influence investor expectations regarding the Federal Reserve's upcoming policy decisions. Recent US employment data has been robust, and market pricing for a September Fed rate hike has gained some traction. Meanwhile, surging crude oil prices have reignited concerns over US inflation. With international oil prices now trading above $100 per barrel, energy costs are expected to feed through to headline inflation via transportation, production, and consumption channels. Should both PPI and CPI come in hotter than anticipated, the market may raise its bets on the Fed maintaining high rates—or even hiking—which could lend support to the dollar and Treasury yields, potentially triggering a more pronounced bounce in USD/JPY.

However, the dollar's rebound is constrained by geopolitical tensions. Ongoing instability in the Middle East, particularly rising shipping risks near the Strait of Hormuz, has pushed oil above $100 and amplified global inflationary pressures. While risk-off flows typically favor the dollar, an energy-driven shock simultaneously raises US inflation concerns and stokes worries about slowing global growth. As a result, safe-haven capital flows between the dollar and the yen are not moving in a single direction.

From the current market dynamics, the yen's policy-driven momentum appears more dominant. The yen has appreciated meaningfully in September, and market focus is intensifying on whether the BoJ will accelerate its policy normalization timeline. If the BoJ continues to emit hawkish signals and US inflation data fails to significantly surprise to the upside, USD/JPY is likely to remain under downward pressure. Consequently, the upcoming US PPI and CPI releases over the next two sessions will serve as critical catalysts for the currency pair. A strong inflation print could temporarily reverse the dollar's weakness, pushing USD/JPY toward the 154.00 or even 155.00 levels. Conversely, softer inflation data, combined with continued BoJ hawkishness, could see the pair retest the 153.00 handle or lower.

On the daily chart, USD/JPY remains firmly in a bearish configuration, with price action persistently trading below the key 155.20 to 155.30 zone. This area previously served as significant horizontal support and a bullish-bearish pivot point, but has now transformed into major overhead resistance. Unless the pair manages to reclaim the 155.30 level, the prevailing downtrend remains intact. On the downside, 153.00 stands as the most critical psychological support in the near term. A decisive break below 153.00, accompanied by sustained trading beneath that level, would signal a new leg lower, potentially exposing the 152.50 and 152.00 support areas. Recent market data indicates some buy-side interest around 153.00, while 152.00 also represents a notable round-number level worth watching.

To the upside, initial resistance is seen near 154.00. Should USD/JPY reclaim 154.00, the short-term bounce could extend toward 154.50, with the more significant barrier resting at the 155.20 to 155.30 zone. Only a decisive break and sustained hold above that region would negate the current medium-term bearish structure. On the 4-hour timeframe, the pair is in a technical rebound phase within a broader downtrend. Price action is currently oscillating around the 153.40 to 153.60 range, with short-term bullish and bearish forces appearing balanced for now, though the moving average alignment remains skewed to the downside. The latest chart data highlights 153.45 as a key short-term pivot, with the 153.58 to 153.70 zone presenting immediate resistance. Should price slip back below 153.30, the pair could retest the 153.00 and 152.90 support levels once more.

In summary, while USD/JPY exhibits scope for technical bounces in the near term, the broader downtrend remains unbroken. The 153.00 level is the key threshold bears need to conquer in the next phase, while 154.00 and 154.50 serve as resistance points during any rebound attempt. The 155.20 to 155.30 area remains the decisive zone for determining whether the medium-term trend can reverse. If US PPI and CPI significantly exceed expectations, the pair could see short-term strength; conversely, disappointing data combined with firming BoJ rate hike expectations could see USD/JPY seek support below 153.00 again.

In conclusion, USD/JPY is currently hovering near 153.50, and despite some dollar rebound ahead of the US inflation data, the yen remains well-supported by growing BoJ tightening expectations. Accelerating Japanese policy normalization and narrowing Japan-US yield spreads are the primary downside pressures facing the pair. In the short term, the US PPI and CPI data will determine whether the dollar can secure fresh interest rate support. Stronger-than-expected inflation could drive USD/JPY toward the 154.00 and 155.20 to 155.30 zones, while softer figures alongside continued BoJ hawkishness could trigger a break below 153.00, opening the door to the 152.50 and 152.00 support levels. Overall, until the 155.30 level is decisively reclaimed, the bearish bias for USD/JPY remains intact.