By Blessing Nweke

The U.S. dollar fell sharply against the Japanese yen on Monday after the United States and Japan carried out a rare coordinated intervention in currency markets aimed at supporting the Japanese currency and easing volatility.

The yen strengthened significantly, with the dollar dropping from above 163 yen to around 156 yen during early trading, marking one of the largest single-day moves in recent years. The joint action came after months of sustained weakness in the yen, which had increased the cost of imports and added to inflationary pressures in Japan.

Japanese Finance Minister Satsuki Katayama confirmed that Tokyo purchased yen in coordination with the U.S. Treasury to counter what officials described as excessive market volatility. President Donald Trump also acknowledged the U.S. role in the intervention, saying the move reflected the close economic relationship between the two allies and would help support financial stability.

The coordinated operation is the first of its kind between the two countries in nearly three decades, highlighting growing concern over the yen’s prolonged decline. Analysts said the intervention sent a strong signal to traders that authorities are prepared to act against sharp currency swings, though they cautioned that lasting gains for the yen may depend on future monetary policy decisions by the Bank of Japan.

The stronger yen weighed on Japanese stocks, particularly exporters in the automotive and technology sectors, as a firmer currency can reduce the value of overseas earnings. Investors are now closely watching whether additional interventions or interest rate changes will follow if market volatility continues.

Original article