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Mizuho Securities

May 12, 2026

10y JGB Auction Preview

Rates StrategyRates Govt BondsDerivativesOther

Mizuho previews the upcoming JPY2.6 trillion 10y JGB auction, suggesting that 2.5% yield levels should provide support despite geopolitical uncertainty in Iran.

Key Takeaways

  • 1.The 10y JGB yield trading near 2.5% represents a psychologically significant threshold that should attract buying interest.
  • 2.Markets have already priced in a high probability (over 70%) of a BOJ June rate hike, limiting further yield upside.
  • 3.Geopolitical risks, specifically the protracted Iran war and closure of the Strait of Hormuz, remain the primary negative headwind.

Table of Contents

  • (1) Positives and negatives ahead of the 10y auction
  • POTENTIAL POSITIVES
  • POTENTIAL NEGATIVES
  • (2) Auction strategy
  • CONSIDER OUTRIGHT LONGS AND/OR ASSET SWAPS
  • (3) Key charts

Document Preview

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