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Mizuho Securities

May 14, 2026

30-Year JGB Auction Preview

Rates StrategyRates Govt BondsOther

Mizuho analyzes the upcoming 30-year JGB auction, highlighting that while Middle East conflict and BOJ rate hike signals create volatility, yield levels at 3.81% and trust bank rebalancing provide strong support.

Key Takeaways

  • 1.The 30y JGB yield of 3.810% is considered highly attractive compared to previous auctions and historical averages, providing a strong incentive for long-term investors.
  • 2.Portfolio rebalancing demand from domestic trust banks is expected to support the auction, driven by recent global equity market gains and the Nikkei 225 crossing 60,000.
  • 3.Concerns regarding fiscal expansion and energy subsidies are unlikely to lead to increased market issuance of super-long JGBs due to available frontloaded refunding bond resources.

Table of Contents

  • (1) Positives and negatives ahead of the 30y auction
  • POTENTIAL POSITIVES
  • POTENTIAL NEGATIVES
  • Auction strategy
  • (2) Key charts

Document Preview

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Page 1 of 30-Year JGB Auction Preview
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