USD/JPY touched 162.38 on June 30, a four-decade low since 1986, before retreating to around 161.09 on July 2. ING Groep argues that any Japanese intervention will only buy time, because the yen's slide is rooted in the widening U.S.–Japan policy gap rather than in short-term flows.
The yen's weakness is structural, not a passing dip, and foreign exchange intervention won't fix it. USD/JPY touched 162.38 during Asian hours on June 30, a four-decade low since 1986, then swung wide on July 2 — opening at 162.60, dipping to 160.62, and settling near 161.09. The market ties that pullback to possible Japanese intervention and weak U.S. employment data, but the underlying trend runs deeper.
The policy gap driving the yen down
At the start of 2026, markets priced in two Federal Reserve rate cuts. That view has fully reversed: the probability of a Fed rate hike by December has risen to 80%, and implied rates from U.S. Treasury futures have climbed from 3.05% to 3.95%. The Bank of Japan has held its cautious line instead, with year-end implied rates slipping from 1.29% to 1.20% despite inflation running above target. This widening rate gap keeps fueling yen carry trades, where investors borrow yen cheaply to buy higher-yielding dollar assets.
External pressures add to the strain. Japan's reliance on Middle East energy imports leaves it exposed to oil-price risk premiums, and foreign investors net-bought ¥10.2 trillion of Japanese stocks in the first 24 weeks while hedging their currency exposure, which generates steady yen selling.
Why intervention keeps failing
ING Groep noted that the July 2 slide, which pushed USD/JPY below 161.0, may reflect covert Bank of Japan intervention timed to thin holiday liquidity around U.S. Independence Day. Yet the bank cautions that such moves treat symptoms, not causes. Between April and May, Japan's Ministry of Finance deployed a record ¥11.7 trillion (USD 73.6 billion) to push the pair into the 155–156 range, only for it to fully retrace within less than two months. Japan holds USD 1.094 trillion in reserves as of end-May, but roughly 70% sits in U.S. Treasuries, so heavy selling to fund intervention would lift Treasury yields and constrain further action.
Crowded shorts raise reversal risk
Positioning is stretched. As of June 22, CFTC data showed net yen short positions of USD 11.3 billion, near a two-year peak and comparable to July 2024, when intervention paired with an interest rate hike drove a sharp yen rally. On the charts, the primary upside target sits at 163.64, the 100% Fibonacci extension of the January–April rally, while support at 160.9 marks the 20-day moving average; a decisive break lower opens the way toward 157.6–158.0.
Source: Futunn
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