Japan's Record Yen Intervention Fizzles Faster Than Expected
Japan's record yen intervention has had an unexpectedly short shelf life. The ¥42.8 trillion ($285 billion) effort, conducted in two rounds in April and May, was intended to strengthen the yen against the US dollar. However, as of mid-June, market movements have already erased half the intervention's impact.
The Bank of Japan spent ¥9.8 trillion in late April and ¥33.1 trillion in early May to support the yen, marking the largest intervention on record. Initially, the yen strengthened from 160 to 151 per dollar, but this gain was short-lived. The currency has since returned to levels near 159 per dollar.
The rapid erosion of the intervention's effect is driven by persistent interest rate differentials between Japan and the US. Even after the Bank of Japan ended its negative rate policy in March, the yield gap remains wide, prompting investors to continue selling yen for higher-yielding currencies.