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May 27, 2026

Fixed Income Commentary: Improving Super-Long JGB Market Conditions

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The report highlights improving conditions in the super-long JGB market, noting that bid-ask spreads have remained contained despite global yield volatility. This stability is attributed to better supply-demand dynamics and easing concerns over the size of the Japanese supplementary budget.

Key Takeaways

  • 1.Disorderly upward yield movements in Japanese Government Bonds (JGBs) caused by declining liquidity have been avoided at this juncture.
  • 2.Supply-demand conditions for super-long JGBs are improving due to reduced issuance by the Ministry of Finance (MoF) and the entry of overseas real money investors.
  • 3.Concerns regarding fiscal expansion have eased as the FY26 supplementary budget is expected to be relatively small at approximately JPY 3 trillion.

Table of Contents

  • Key points
  • Signs of improving super-long JGB market conditions: Seem to have avoided disorderly upward yield movements due to declining liquidity
  • Background: (1) Easing concerns about supplementary budget and (2) supply/demand improvements due to MoF issuance reductions
  • Hard to say risk of disorderly upside yield movements over, but super-long JGB market conditions have improved compared to past
  • Appendix A
  • Analyst Certification
  • Disclosures
  • Disclaimers

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Authors

Takahiro Otsuka

Securities

Japanese Government Bonds

Themes

Yield Curve DynamicsBond Market LiquidityFiscal Policy Impact

Regions

Asia PacificJapanUnited StatesSouth Korea
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