The Japanese yen remains under intense pressure, edging toward its lowest level in nearly 40 years since 1986. Although the Bank of Japan (BOJ) raised its policy rate to 1%—a 31-year high—and jointly conducted a record 11.7 trillion yen foreign exchange intervention with the Ministry of Finance, these measures have failed to effectively halt the yen's depreciation trend.
Market analysis points to the widening US-Japan interest rate differential as the core driver of the yen's persistent weakness. The short-end spread has reached 263 basis points, fueling an overcrowded carry trade in which investors borrow low-yielding yen to buy higher-yielding dollars, further intensifying selling pressure on the yen. Meanwhile, Japan's massive government debt severely limits the BOJ's room for additional rate hikes, leaving the central bank constrained in addressing both inflation and currency depreciation.
Additionally, the Federal Reserve's persistent hawkish stance, coupled with geopolitical tensions and energy price volatility that exacerbate imported inflation, has further squeezed Japan's monetary policy autonomy. The BOJ's policy operations are increasingly dictated by the US interest rate cycle, making the yen's depreciation dilemma difficult to resolve in the near term.