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Mizuho Securities

June 11, 2026

30y JGB Auction Preview

Rates StrategyRates Govt BondsOther

This report previews the 30-year JGB auction scheduled for June 10, 2026, analyzing fiscal headwinds against expectations for BOJ policy normalization.

Key Takeaways

  • 1.Super-long yields face limited upward pressure despite fiscal expansion concerns, as BOJ policy rate expectations are already high.
  • 2.The government's fiscal policy direction (specifically supplementary budget plans) remains a headwind for the 30y JGB auction.
  • 3.Asset swap and outright long positions are suggested with a medium-term horizon to manage near-term volatility.

Table of Contents

  • Positives and negatives ahead of the 30y auction
  • POTENTIAL POSITIVES
  • POTENTIAL NEGATIVES
  • Auction strategy
  • Key charts
  • Important Disclosure Information

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