Tokyo conducted currency intervention operations on Thursday to stem the yen's slide against the dollar, according to multiple sources familiar with the matter, reported by Mainichi.
The intervention came as the yen approached 160 to the dollar, a level not seen since 1990, raising concerns about import costs and inflation ahead of Japan's extended Golden Week holiday. While Japan's Ministry of Finance declined to confirm the operation, market observers noted sudden volatility consistent with official action.
The timing—just before a long holiday weekend when Tokyo markets will be closed—suggests authorities sought to establish a floor for the currency during a period of reduced trading liquidity. Currency intervention during holiday periods has historically been a preferred tactic of Japan's monetary authorities, maximizing impact when market participants are sidelined.
Structural Pressures Mount
The yen's weakness reflects persistent monetary policy divergence between Japan and the United States. While the Federal Reserve maintains elevated interest rates to combat inflation, the Bank of Japan has been reluctant to abandon its ultra-loose monetary stance, fearing damage to an economy still struggling with deflationary pressures.
This marks the latest in a series of interventions by Tokyo authorities. Japan spent an estimated $60 billion in 2022 to support the yen, with limited lasting effect. The fundamental challenge remains unchanged: as long as the interest rate differential persists, market forces will continue pushing the yen lower.
For Japan's export-oriented manufacturers, a weaker yen traditionally meant competitive advantage. But that calculus has shifted. With supply chains increasingly globalized and energy imports critical, currency weakness now translates directly into higher costs for households and businesses.



