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Japanese Yen: Intervention skepticism meets BoJ repricing – BBH

Brown Brothers Harriman’s (BBH) Elias Haddad highlights growing market skepticism about Japan’s FX interventions, despite sizeable recent operations that triggered sharp but temporary Japanese Yen (JPY) rallies. With coordinated US–Japan action and ample reserves, officials are seen putting a firmer ceiling on USD/JPY. Risks are viewed skewed toward further hawkish Bank of Japan (BoJ) repricing as policy remains near the lower end of its neutral range.

Ceiling on pair, hawkish BoJ risks

"Japan’s Ministry of Finance released the details of its FX intervention operations for the period from April through June 2026. Japan’s intervention record this year is hardly convincing. The three interventions triggered kneejerk JPY rallies but little lasting follow-through with USD/JPY ultimately appreciating to a 40-year high around 164.00 on July 23."

"The size of Japan’s most recent FX intervention on July 30 and July 31 will be released end-August. But estimates suggest Japan used a record of about ¥14 trillion to prop up JPY. As a result, USD/JPY slumped from an intra-day high of 163.74 on July 30 to reach a low of 155.23 on August 3 (8.5 yen rally)."

"The market narrative is already slipping back into skepticism over the effectiveness of Japan’s intervention. We think that complacency is premature for two reasons."

"First, the coordinated US-Japan intervention – and officials’ warning that they stand ready to act again – significantly raises the cost of fighting a stronger yen and puts a much firmer ceiling on USD/JPY. As of the end of July, Japan had $1.09 trillion in currency reserves (¥173 trillion), ample firepower to back up its intervention threat."

"Second, risks are skewed towards further hawkish Bank of Japan (BoJ) rate repricing. The policy rate (1.00%) is near the lower end of the bank’s neutral range (1.10%-2.50%) while the economy is operating above potential. That leaves plenty of room for the BoJ to quicken the pace of normalization."

(This article was created with the help of an Artificial Intelligence tool and reviewed by an editor. Know more.)

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