With USD/JPY back above 160 and $73 billion in intervention failing to hold, the yen's fate hinges on whether the BoJ's gradual hikes can meaningfully narrow a 290-basis-point rate gap.
After hovering just below the 160 level since the start of June, the USD/JPY pair finally closed above the mark on Monday, reclaiming the key psychological threshold (on a closing basis) for the first time since April 30. The pair has so far maintained its footing above the 160 handle in Tuesday trading, underscoring the dollar's continued strength against the yen.
Why Yen Remains Under Pressure
Is the yen's weakness a reflection of the fundamentals of the world's fourth-largest economy, the result of a strong U.S. dollar, or a combination of both? A closer look suggests the answer lies somewhere in between.
While Japan continues to grapple with sluggish economic growth, uneven wage gains, and a still-accommodative monetary policy stance, the U.S. economy has remained relatively resilient, keeping Treasury yields elevated and underpinning the dollar.
The BoJ’s policy rate currently stands at 0.75%, held steady since December 2025, making it the highest rate since 1995 but still historically very low.The result is a rate differential of nearly 275 basis points between the two economies, and this has served as the primary force pushing USD/JPY toward 160, a level that has historically drawn intervention warnings from Tokyo.
Yawning Rate Differential
Source: Trading Economics
Historical episodes of weakness show that yen’s fate was less tied to Japanese actions and more to the direction of the U.S.-Japan interest rate differential. Even after the BoJ raised interest rates in 2024 for the first time since 2007, the tightening failed to translate into yen strength, with USD/JPY sliding to a 34-year low before breaching the politically explosive 160 level. Tokyo deployed a record 9.79 trillion yen intervention across April and May, and again in July when the pair hit a 38-year low of 161.76 but each round of firepower only temporarily slowed the decline.
The one moment of genuine relief came not from policy but from markets: a sharp unwinding of yen carry trades in late July, triggered by weakening U.S. economic data and rising prospects of Fed rate cuts, sparked a sudden yen rally. This is a reminder that the currency's fate remained tied less to Tokyo's actions and more to the direction of the U.S.-Japan rate gap.
Until either the Fed pivots or the Bank of Japan moves decisively away from its ultra-loose policy framework, that pressure is on the yen.
History appeared to repeat itself in 2026. After the yen weakened past 160 once again, Japan's Ministry of Finance executed its first yen-buying operationsince July 2024, intervening on April 30 and a second time days later, sending the currency surging nearly 3% on the first instance and a further 2% on the second.
Japan spent over $73 billion between April 28 and May 27 to support the yen — a massive outlay that, much like 2024, bought time but not a trend reversal, with USD/JPY back above 160 heading into June.
BoJ's June Decision: A Hike That May Not Be Enough
That sets up the Bank of Japan's June 15-16 meeting as the next critical test. Markets are pricing a near-certain hike to 1%, which would narrow the US-Japan rate differential to roughly 250 basis points, but the move is so fully priced that disappointment risk runs in only one direction.
The more consequential signal will be Governor Ueda's forward guidance: whether the BoJ signals a continued normalization path or blinks in the face of Middle East uncertainty and yen intervention fatigue. A hike without hawkish guidance could paradoxically weaken the yen further, as markets conclude the normalization pace remains too slow to meaningfully close the gap with the Fed.
ING strategists also brace for a quarter-point hike. They cited the three dissenting votes at the April meeting as some members believed a rate hike is needed soon to avoid economic harm and further inflation.
They also saw more hikes coming this year. “With steady wage growth, we expect inflation pressure to broaden and firm up more in the second half of the year,” ING said, adding that “BoJ is likely to deliver another hike in the fourth quarter.”
Japan Inflation Contained For Now
Source: TradingView
With the ongoing yen weakness, a June Bank of Japan (BoJ) rate hike is nearly a done deal. Mitsubishi UFJ Financial foresees a significant reversal in yen weakness, if the central bank delivers in line with expectations. “Failure to follow through and hike rates again would trigger a much bigger negative market reaction for the yen adding to investor concerns that the BoJ is behind the curve in fighting inflation risks in Japan,” the firm’s strategists said.
Is the Yen's Decline Secular?
Whether the yen's decline is permanent or merely prolonged is a question that divides economists and forex strategists. The structural case for persistent weakness is hard to dismiss. Japan's shrinking, aging population suppresses domestic demand, decades of deflation have entrenched a low-rate psychology that policy alone cannot quickly reverse, and the country's near-total dependence on energy imports means every spike in oil prices drains the current account and mechanically pressures the currency.
The yen's role as the world's preferred carry trade funding currency adds another structural headwind. As long as Japanese rates remain the lowest in the developed world, global investors will continue borrowing in yen to fund higher-yielding positions elsewhere, creating a persistent ceiling on any yen recovery.
On the other hand, the rate differential, the single most powerful driver of USD/JPY, is cyclical by definition. When it turns, yen recoveries can be swift and violent, as 2024's carry trade unwind demonstrated.
That said, carry-trade unwinding will not help much this time around. Lloyd Financial Chief Investment Officer Colin Symons said the carry trade is less crowded now than it was in 2024, given the interest rate differential isn’t as big and a BoJ that is trying to learn from past mistakes.
The export-dependent nature of the Japanese economy may provide some incentive to keep the yen weaker. But Lloyd Financial’s Symons points out that a weak yen exacerbates current Middle East conflict-induced energy stress, creating an imbalance in trade. The strategist said the market thinks the 162 level could be the mark when the yen weakness could materially worsen the country’s trade balance, rather than helping exporters.
Colin believes a full Group of Seven (G-7) intervention seems unlikely but the U.S.could help a bit, at least verbally. In terms of action from Japan, the officials could usually start with language like ‘decisive action’ and ‘bold steps,’ he said.
“Ultimately, they're playing a difficult game of keeping the economy going while fighting unusual inflation. That's a tough balance that does seem like it can break under stress, but that stress hasn't yet arrived.”