TOKYO — Japan's Ministry of Finance intervened in the foreign exchange market, selling U.S. dollars to buy yen, a source familiar with the operation said. The move aims to stem the yen's sharp decline against major currencies and precedes the Bank of Japan's policy decision later this week. The yen strengthened immediately following the news.
The intervention marks a direct effort to stabilize the currency after months of persistent weakness. A weaker yen raises import costs for Japanese businesses and consumers, fueling domestic inflation. Currency depreciation also complicates the Bank of Japan's efforts to manage its yield curve control policy. Tokyo's move signals growing discomfort with the pace of the yen's decline.
The Bank of Japan has maintained ultra-loose monetary policy, keeping short-term interest rates negative and capping long-term government bond yields. That dovish stance contrasts sharply with tightening cycles in the United States and Europe. The policy divergence has been the primary driver of yen weakness, pulling capital out of Japan.
The intervention creates fresh uncertainty for global fixed-income markets. A stronger yen reduces the appeal of carry trades, potentially triggering an unwinding of positions built on yen weakness. That dynamic could compress spreads in certain cross-currency basis swaps, particularly those involving the yen and dollar. Duration risk for U.S. dollar-denominated assets held by Japanese investors could also shift, altering hedging strategies.
Global equity markets showed varied reactions. The Nasdaq composite rose 2.8 percent and the S&P 500 gained 1.7 percent, suggesting the intervention's impact was largely confined to currency markets.
Analysts widely expect the Bank of Japan's monetary policy board to hold current settings when it concludes its two-day meeting Friday. Any verbal cues on future policy adjustments will draw close scrutiny, as will any acknowledgment of currency stability in the BOJ's outlook statement. Markets will specifically watch for hints of a potential exit from negative interest rates later this year.
