The Japanese yen remains under severe pressure, approaching its weakest level in 40 years (since 1986). Although the Bank of Japan (BOJ) has raised its policy rate to 1%—the highest in 31 years—and coordinated with the Ministry of Finance to intervene in the foreign exchange market with a record 11.7 trillion yen, these measures have failed to halt the yen's depreciation.
Analysts point to the widening US-Japan interest rate differential as the core issue. Short-end spreads have reached 263 basis points, fueling crowded carry trades as capital flows into dollar-denominated assets. Meanwhile, Japan's high government debt severely limits the BOJ's room for further rate hikes. The Federal Reserve's persistent hawkish stance, combined with geopolitical risks that drive up energy prices, has intensified imported inflation in Japan.
This situation highlights how Japan's monetary policy autonomy has been deeply constrained by the US rate cycle. Despite the BOJ's efforts to tighten policy, the yen's fundamental weakness is unlikely to reverse solely through rate hikes and intervention in a globally divergent interest rate environment.