Thai Baht Bond Market: Corporate Issuance Cycle and Default Wall
Thai bond market end-2025 outstanding THB 17.9T (~93% of GDP). 2025 corporate issuance THB 800B (revised down from THB 850-900B); H1 -19.3% YoY. 8 HY issuers defaulted in 2025 (THB 8.319B, +162% YoY). 2026 maturities THB 875.985B (90% IG / 10% HY); ThaiBMA warns higher 2026 default risk.
Key takeaways
- 1
End-2025 outstanding Thai bond market: T, ~ of GDP per ThaiBMA. Growth driven by government and state-enterprise issuance; corporate-segment value declined slightly.
- 2
2025 corporate-bond issuance: ThaiBMA revised 2025 forecast from to ; long-term corporate actuals tallied per Nation Thailand and Bangkok Post. H1 2025 issuance (- YoY).
- 3
2025 default escalation: 8 issuers defaulted on bonds totalling (+ from in 2024), all from mid-sized and smaller HY names.
- 4
Q4 2025 high-yield rollover stress: HY 2025 maturities with facing rollover difficulties; energy (renewable-PPA-dependent) and property (developer-leverage) sectors most exposed per Nation Thailand.
- 5
2026 maturity wall: in corporate-bond redemptions; approximately investment-grade and high-yield. ThaiBMA December 2025 warning: 2026 default risk higher than 2025.
- 6
Government bond yields declined H1 2025 in line with two BOT policy rate cuts (Feb and April); subsequent August and December 2025 cuts further compress yields per BOT MPC Decision 6/2025.
Questions this report answers
How big is the Thai bond market and how is it composed? Per ThaiBMA's bond-market overview: end-2025 outstanding total T (~ of GDP). Composition: government bonds (Treasury, BOT bills) dominant share, state-enterprise bonds second tier, and corporate bonds (investment-grade, high-yield) third tier. Government-bond issuance drove 2025 growth while corporate-segment value declined slightly; the structural shift reflects fiscal-policy expansion (PDMO issuance schedule) against private-sector deleveraging cycle.[, ]
What's the 2025 corporate-issuance trajectory? Pre-2025 ThaiBMA forecast per Bangkok Post; revised to in August 2025 per Nation Thailand following H1 issuance of (- YoY). Long-term corporate actuals tallied per year-end ThaiBMA data β the gap between the revised forecast and actual reflects late-2025 acceleration in pre-funding ahead of the 2026 maturity wall. Investment-grade names dominated 2025 issuance; high-yield names struggled to issue or rolled at materially wider spreads.[, ]
What's the 2025 default trajectory and 2026 outlook? Per ThaiBMA December 2025 warning (Nation Thailand): 8 issuers defaulted on in 2025 (+ from in 2024); all defaults from mid-sized and smaller HY names. Q4 2025 saw of HY 2025 maturities (out of total) face rollover difficulties. 2026 maturity wall: ( IG / HY). ThaiBMA warned 2026 default and repayment-delay risk likely higher than 2025 driven by slow-growth outlook and global uncertainty.[, ]
Where's the sector concentration of default risk? Per Nation Thailand's July 2025 analysis: energy (renewable-PPA-dependent names with PPA-tariff or off-take counterparty risk) and property (developer-leverage with weak pre-sale conversion) sectors are the structural concentrations. ThaiBMA, SEC, and PDMO are coordinating disclosure-and-risk-management improvements to limit retail-investor exposure to high-yield names following the Stark and More Return retail-bond default cases earlier in the cycle.[, ]
Executive summary
The Thai bond market reached T outstanding at end-2025 (~ of GDP per ThaiBMA), driven by government and state-enterprise issuance against a softening corporate segment. 2025 corporate issuance fell short of pre-cycle expectations: H1 2025 was - YoY at prompting ThaiBMA to trim its full-year forecast from to . Long-term corporate actuals subsequently tallied at year-end, reflecting late-2025 pre-funding ahead of the 2026 maturity wall.[, , ]
The high-yield segment is structurally stressed. 8 issuers defaulted on in 2025 (+ YoY from in 2024); all from mid-sized and smaller HY names. Q4 2025 saw of HY 2025 maturities (out of total) face rollover difficulties; energy (renewable-PPA-dependent) and property (developer-leverage) sectors are the structural concentrations of risk per Nation Thailand. Several issuers have called bondholder meetings seeking further tenor extensions on previously-extended maturities, signalling escalating credit stress.[, ]
The 2026 outlook is a 90/10-IG/HY-mix maturity wall against ThaiBMA's December 2025 warning of higher default and repayment-delay risk than 2025. The structural-overlay is slow-growth (BOT MPC December 2025 below-potential 2026-2027 framing) and global uncertainty (tariffs, FX). For investors, the 2026 thesis is: investment-grade Thai corporate is well-protected and benefits from BOT cutting cycle (yield compression); high-yield Thai corporate faces structural rollover risk that has not yet fully cleared. Watch ThaiBMA quarterly default-tracking data, PDMO government-bond issuance schedule, and SEC retail-investor-disclosure rule cadence as leading 2026 indicators.[, ]
Thai bond market sizing and 2025 corporate issuance
Outstanding total end-2025
Value
$518.8B
Notes
~93% of GDP per ThaiBMA bond-market overview.
Outstanding end-Q2 2025
Value
$501.4B
Notes
+1.1% from end-2024; growth from government and state-enterprise.
2025 corporate issuance forecast (pre-revision)
Value
$24.6-900B
Notes
January 2025 ThaiBMA forecast per Bangkok Post.
2025 corporate issuance forecast (revised Aug)
Value
Notes
ThaiBMA August 2025 revision after H1 weakness.
2025 long-term corporate actual
Value
$25.5B
Notes
Late-2025 pre-funding accelerated into 2026 maturity wall.
H1 2025 issuance
Value
$11.6B
Notes
-19.3% YoY; structural softening.
2025 default count
Value
8 issuers
Notes
All mid-sized / smaller HY names.
2025 default value
Value
$241.1M
Notes
+162.26% YoY from $91.9M in 2024.
2026 maturity wall
Value
$25.4B
Notes
90% IG / 10% HY per ThaiBMA.
| Metric | Value | Notes |
|---|---|---|
| Outstanding total end-2025 | $518.8B | ~93% of GDP per ThaiBMA bond-market overview. |
| Outstanding end-Q2 2025 | $501.4B | +1.1% from end-2024; growth from government and state-enterprise. |
| 2025 corporate issuance forecast (pre-revision) | $24.6-900B | January 2025 ThaiBMA forecast per Bangkok Post. |
| 2025 corporate issuance forecast (revised Aug) | $23.2B | ThaiBMA August 2025 revision after H1 weakness. |
| 2025 long-term corporate actual | $25.5B | Late-2025 pre-funding accelerated into 2026 maturity wall. |
| H1 2025 issuance | $11.6B | -19.3% YoY; structural softening. |
| 2025 default count | 8 issuers | All mid-sized / smaller HY names. |
| 2025 default value | $241.1M | +162.26% YoY from $91.9M in 2024. |
| 2026 maturity wall | $25.4B | 90% IG / 10% HY per ThaiBMA. |
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