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May 13, 2026

Korea Bond Market Update: WGBI Flows and Implications

Macro ThematicRates Govt BondsRates CreditEquitiesFinancialsInformation Technology

South Korean Treasury Bond (KTB) yields have surged to post-pandemic highs amid hawkish central bank signals and energy price shocks. While domestic institutional demand is retreating, strong foreign inflows ahead of WGBI inclusion are acting as a vital market stabilizer.

Key Takeaways

  • 1.KTB yields have reached post-pandemic highs, trading significantly above the BOK policy rate due to hawkish central bank commentary and geopolitical energy shocks.
  • 2.Domestic demand for KTBs from insurers and asset managers is declining due to equity market rotation and regulatory changes delaying discount rate normalization.
  • 3.Strong foreign inflows driven by WGBI inclusion are providing a critical structural offset to weak domestic demand, particularly in long-duration bonds.

Table of Contents

  • Backdrop
  • Subdued domestic demand for KTBs
  • First-month WGBI inflow update
  • Supply-side update
  • Outlook and potential implications for broader rates markets

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Authors

Irene ChoiDanny SuwanaprutiAndrew Tilton

Securities

KTB (Korea Treasury Bond)KOSPIBrent Crude

Themes

WGBI Index Inclusion EffectsMonetary Policy Tightening

Regions

Asia PacificSouth Korea