USD/JPY Near a Two-Year High as a Historic BoJ Hike Fails to Lift the Yen

The Japanese yen has slumped to its weakest level in nearly two years, dragging USD/JPY up toward 161.70. What makes this slide notable is that it is happening even after the Bank of Japan delivered its biggest interest-rate hike in three decades.

USD/JPY climbs toward a two-year high

USD/JPY traded around 161.70 early on Tuesday, June 23, its strongest reading since July 2024, as the US dollar stayed firm ahead of a batch of flash purchasing managers’ index (PMI) data. The US Dollar Index pushed to a 13-month high near 101.40, holding comfortably above 101.00.

US business surveys did much of the lifting. The S&P Global flash manufacturing PMI rose to 55.7 in June, its highest since May 2022, reinforcing a picture of an economy that is cooling only slowly. That resilience has kept a hawkish, higher-for-longer repricing alive and supported the dollar broadly.

A historic BoJ hike that didn’t move the yen

Here is the twist. On June 16 the Bank of Japan raised its policy rate to 1.00%, its highest since 1995, in a 7-1 vote, and signalled that more tightening could follow. On paper, a hawkish central bank should support its currency. Instead, the yen barely flinched and has since drifted to fresh lows.

Why the hike wasn’t enough

The reason is the size of the gap that remains. Even after the move, the BoJ’s 1.00% rate sits far below the Federal Reserve’s 3.50%-3.75% target range — a differential of roughly 2.6 percentage points. That gap is the engine of the yen carry trade, where investors borrow cheaply in yen to hold higher-yielding assets elsewhere. A 25-basis-point hike narrows that gap only at the margin, so the structural incentive to sell the yen stays largely intact.

Japan’s inflation backdrop adds to the bind. Core consumer inflation rose 2.7% in May, easing from 2.8% in April but still above the BoJ’s 2% target. Above-target inflation would normally argue for more tightening, yet the central bank has moved cautiously, mindful of fiscal pressures and the durability of wage growth.

Intervention warnings return

With the currency near multi-decade lows, Japanese officials have sharpened their language again. Finance Minister Satsuki Katayama held talks with US Treasury Secretary Scott Bessent and said the two sides share a solid understanding that bold action can be taken on foreign exchange if needed. Chief Cabinet Secretary Minoru Kihara added that Japan would take appropriate action against currency moves if necessary.

The warnings carry history behind them. From late April to late May, Japanese authorities spent a record sum — roughly ¥11.7 trillion, or about $74 billion — to prop up the yen after USD/JPY broke above 160, the first yen-buying operation since July 2024. Analysts at State Street have pointed to the 162 area as a rough ceiling of official tolerance, near the multi-decade peak set in July 2024.

Why words may not be enough

History suggests intervention can slow a currency’s slide but rarely reverses it while the underlying drivers stay in place. The spring operations triggered sharp but temporary rebounds before the pair ground higher again. Goldman Sachs has estimated Japan still has firepower for many more interventions, but with the rate gap wide and short-yen positioning elevated, the market has so far treated each warning as a move to fade rather than a turning point.

How it ripples across markets

A firmer dollar has weighed on other majors. EUR/USD slipped about 0.4% to near 1.1380, while GBP/USD held under pressure around 1.3200. Gold, sensitive to the dollar and real yields, eased toward $4,120.

USD/JPY remains the cleanest expression of US-Japan policy divergence — and the most exposed to a sudden shift in that story, whether from the Fed, the BoJ, or Japan’s Ministry of Finance.

Key takeaways

• USD/JPY traded near 161.70 on June 23, its highest in nearly two years, as the dollar hit a 13-month high near 101.40.
• The BoJ raised rates to 1.00% on June 16 — its highest since 1995 — yet the yen kept sliding.
• A roughly 2.6-point gap to the Fed’s 3.50%-3.75% range keeps the carry trade and yen-selling pressure intact.
• Japan’s May core inflation was 2.7%, above the 2% target but easing, leaving the BoJ cautious.
• Officials renewed intervention warnings; State Street flags 162 as a tolerance ceiling after a record ~$74bn spent in spring.

*Risk disclaimer: CFDs are complex instruments and carry a high risk of losing money rapidly due to leverage; most retail accounts lose money. This article is market commentary for educational purposes only and is not financial advice.*