U.S.-Japan Yen Intervention Puts Global Interest Rates in Focus — Evening Brief – 08.12.26

Japan and the U.S. recently jointly intervened to support the yen after the currency weakened to nearly ¥164 per dollar, its lowest level in roughly four decades. The operation briefly drove the yen to ¥155.20, its strongest level since May, before it surrendered part of the gain and settled near ¥157.50. The intervention provided immediate relief, but its longer-term effectiveness will depend less on the amount spent than on interest rates. Previous episodes show that official yen purchases have struggled when Federal Reserve policy was restrictive and proved more durable when U.S. rates subsequently declined.

Read this week’s Treasury & Rates column, U.S.-Japan Yen Intervention Puts Global Interest Rates in Focus, in tonight’s Evening Brief on how the latest action comes as demand weakens for Japanese government bonds, threatening to push domestic yields higher and make JGBs more competitive with U.S. Treasuries.