JGB Auction Preview

Latest edition · July 6, 2026

JGB Strategy (1)

This report previews the upcoming 30y JGB auction, identifying fiscal policy concerns and seasonality as primary risks while noting the attractiveness of current yields for long-term investors.

The report suggests a cautious approach to the upcoming 30y JGB auction due to 'reflation trade' pressure linked to the Takaichi administration and negative seasonal factors. While fiscal concerns present headwinds, the analyst highlights that outright long positions offer a strong risk/reward balance for medium-term investors, alongside tactical relative value plays like 7s30s spread trades, despite recent market volatility.

Key takeaways from the latest edition

• 1.The 30y JGB auction faces headwinds from fiscal deterioration concerns and negative seasonality, though yield levels offer some appeal.
• 2.Tactical outright longs are suggested for those able to ride out short-term price fluctuations, with potential for yield declines from autumn.

What this series covers

• Positives and negatives ahead of the 30y auction
• Potential positives
• Potential negatives
• Auction strategy
• Key charts

Edition archive

• JGB Strategy (1)

  July 6, 2026

• Mizuho Fixed Income Japan 30y JGB auction preview: Fiscal concerns remain a headwind, but scope to consider holding for the medium term

  June 12, 2026

• Mizuho Fixed Income Japan 30y JGB auction preview: Fiscal concerns remain a headwind, but scope to consider holding for the medium term

  June 11, 2026

• Mizuho Fixed Income Japan 30y JGB auction preview: Fiscal concerns remain a headwind, but scope to consider holding for the medium term

  June 10, 2026

• Mizuho Fixed Income Japan 30y JGB auction preview: Fiscal concerns remain a headwind, but scope to consider holding for the medium term

  June 9, 2026

• Mizuho Fixed Income Japan- 30y JGB auction preview: Middle East uncertainty weighing on sentiment, but yield levels look appealing 20260513

  May 15, 2026