JGB Auction Preview

Latest edition · July 13, 2026

JGB Strategy (1)

This report previews the 20y JGB auction scheduled for 14 July 2026, highlighting trade recommendations such as 10s20s flatteners. It contrasts high absolute yield incentives against ongoing fiscal policy concerns and Middle East geopolitical tensions.

The report evaluates the upcoming 20y JGB auction, noting that while the 20y sector is currently cheap on the curve and offers attractive carry, investors remain wary of fiscal deterioration under the current administration and geopolitical instability following Iran's recent actions in the Strait of Hormuz. Mizuho recommends a cautious approach, suggesting tactical 10s20s flatteners for short-term gains and 20y asset swaps for long-term holders, while highlighting the potential for volatility.

Key takeaways from the latest edition

• 1.The 20y JGB auction faces a tug-of-war between high absolute yields/favorable technicals and persistent fiscal deterioration concerns and geopolitical risk in the Middle East.
• 2.Tactical 10s20s flatteners and longer-term 20y asset swap longs are suggested strategies, though positions should be managed for short-term exit to mitigate negative carry.

What this series covers

• Positives and negatives ahead of the 20y auction
• POTENTIAL POSITIVES
• POTENTIAL NEGATIVES
• Pre-auction comment
• TACTICAL 10S20S FLATTENERS, LONGER-TERM 20Y ASW LONGS
• Key charts

Edition archive

• JGB Strategy (1)

  July 13, 2026

• JGB Strategy

  June 24, 2026

• Mizuho- Fixed Income Japan- 20y JGB auction preview: Yield levels should provide support even amid ongoing concerns about the Middle East situation and fiscal deterioration

  May 21, 2026

• Mizuho- Japan- 20y JGB auction preview: Yield levels should provide support even amid ongoing concerns about the Middle East situation and fiscal deterioration 20260519

  May 20, 2026