Mizuho Securities
May 25, 2026
Rates Strategy Weekly: Recent Rise in Yen Rates
Weekly UpdateRates Govt BondsDerivativesFinancials
Mizuho argues that the recent spike in JGB yields was a technical vicious cycle caused by May's heavy auction schedule rather than purely macro-driven. They expect the yield rise to pause as supply pressure eases.
Key Takeaways
- 1.The recent surge in JGB yields, with the 10y briefly exceeding 2.8%, is not fully explained by macro factors like inflation or fiscal expansion.
- 2.Market yields were amplified by a 'vicious cycle' of weak supply/demand in May due to a concentrated auction schedule.
- 3.Japanese long-term OIS rates are already pricing in a high inflation outlook relative to the US and Eurozone when adjusted for potential growth rates.
Table of Contents
- (1) Recent rise in yen rates defies clean explanation
- IS (WAS) MARKET NOT PRICING IN PROLONGED INFLATION?
- FISCAL DEVELOPMENTS: SUPPLEMENTARY BUDGET UNLIKELY TO RESULT IN HIGHER CALENDAR-BASE JGB ISSUANCE
- RISE IN YEN RATES DEFIES CLEAN EXPLANATION
- DEVELOPMENTS THIS WEEK AND IMPLICATIONS FOR RATES OUTLOOK
- SHORT-TERM OUTLOOK (ONE WEEK – ONE MONTH)
- MEDIUM-TERM OUTLOOK (SEVERAL MONTHS – ONE YEAR)
- Risk scenarios
- (2) Envisaged timetable for BOJ JGB-buying operations
- (3) Yen rates relative value and investment strategies
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Authors
Noriatsu TanjiYuhi Kawano
Securities
10-year JGB20-year JGBJPY OIS
Themes
Yield Curve Bear SteepeningMonetary Policy DivergenceFiscal Risk and Debt Issuance
Regions
Asia PacificEuropeNorth AmericaJapanUnited States
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