The catastrophe bond market has grown from a niche reinsurance tool into a significant capital market asset class. Here is a comprehensive overview of the key statistics and trends shaping the market in 2025.
Market Size and Outstanding Volume
As of year-end 2025, the catastrophe bond market stood at $61.3 billion in outstanding bonds — a 24% increase from the prior year and a more than 15x increase from the approximately $4 billion outstanding in 2005.
The broader insurance-linked securities (ILS) market, which includes cat bonds plus collateralized reinsurance, sidecars, and industry loss warranties (ILWs), represents over $100 billion in alternative capital deployed in the global reinsurance market.
New Issuance Records
2025 saw continued strong issuance following the record-breaking years of 2023 and 2024:
- 2025 issuance: $25.6 billion — record year, 45% increase year-over-year
- 2024 issuance: ~$17.6 billion
- 2023 issuance: ~$16 billion
- 2022 issuance: ~$12 billion
- 2021 issuance: ~$12.5 billion
- 2020 issuance: ~$11.5 billion
- 2015 issuance: ~$7 billion (for historical context)
The consistent growth in issuance reflects increasing demand from sponsors — primarily (re)insurers — for risk transfer capacity, particularly following the rate increases that followed Hurricane Ian in 2022.
Peril Breakdown
The cat bond market covers a diverse range of natural perils:
| Peril | Approximate Market Share |
|---|---|
| US Hurricane | ~28–35% |
| US Earthquake | ~10–15% |
| Multi-Peril | ~20–25% |
| European Wind | ~8–12% |
| Japan Earthquake/Typhoon | ~8–10% |
| Other (flood, wildfire, etc.) | ~5–10% |
US hurricane remains the dominant peril, reflecting both the frequency and severity of losses in the Gulf Coast and Atlantic regions, and the depth of insurance penetration in those markets.
Multi-peril bonds (covering two or more perils) have grown in popularity as sponsors seek comprehensive coverage and investors seek diversified single-bond exposure.
Sponsor Breakdown
Traditional reinsurance sponsors remain the largest source of cat bond issuance, but the market has diversified significantly:
Traditional (re)insurer sponsors (~65%):
- Munich Re, Swiss Re, Hannover Re, SCOR (frequent global issuers)
- State Farm, USAA, Travelers, Nationwide (US specialty)
- Zurich, Allianz, AXA (European carriers)
Government and quasi-sovereign sponsors (~15–20%):
- World Bank (through IBRD/IDA cat bond programs)
- FEMA / National Flood Insurance Program
- Caribbean Catastrophe Risk Insurance Facility (CCRIF)
- Turkish Catastrophe Insurance Pool (TCIP)
Corporate sponsors (~5–10%):
Large property owners with concentrated exposure — e.g., Disney, large real estate investment trusts, electric utilities with wildfire exposure.
Trigger Type Distribution
As the market has matured, indemnity triggers have become dominant:
- Indemnity (~76%): Based on the sponsor's actual losses; lowest basis risk
- Industry loss (~10%): Based on industry-wide losses reported by PCS or PERILS
- Parametric (~8%): Based on physical measurements (wind speed, magnitude)
- Modeled loss (~6%): Based on catastrophe model outputs
The shift toward indemnity has been driven by sponsors seeking efficient risk transfer aligned with their actual losses, even though indemnity bonds take longer to settle after events.
Investor Base
The ILS investor base has diversified substantially:
- Dedicated ILS funds: 35–40% of the market (largest single category)
- Hedge funds: 15–20%
- Pension funds and endowments: 25–30% (fastest growing category)
- Insurers and reinsurers: 10–15%
- Other (family offices, ETFs): 5–10%
Institutional pension fund participation has grown dramatically, driven by the asset class's uncorrelated return profile, transparent documentation, and growing track record. California Public Employees' Retirement System (CalPERS), Ontario Teachers' Pension Plan, and several European pension funds have disclosed ILS allocations.
Pricing and Spread Trends
Cat bond spreads went through a significant repricing cycle following Hurricane Ian in 2022:
- Pre-2022 (2019–2021): Average spread approximately 3.5–4.5% over risk-free rate
- Post-Ian (2022–2023 repricing): Spreads widened to 5.5–8% for similar risk profiles
- Current (2025): Spreads have partially compressed but remain elevated at approximately 4.5–6.5%
The spread-to-expected-loss ratio — a key indicator of investor compensation per unit of risk — remains above the long-run average, suggesting the market is still offering attractive risk-adjusted returns.
Secondary Market
A liquid secondary market for cat bonds has developed over the past decade:
- Approximately 10–15 broker-dealers actively make markets in cat bonds
- Daily turnover estimated at $200–500 million on active days
- Liquidity decreases significantly after major events as price uncertainty increases
- Bid-ask spreads typically 0.25–1.0% in normal conditions, widening to 2–5% after events
The growth of the secondary market has made cat bonds more accessible to institutional investors who require liquidity as a portfolio characteristic.
Long-Term Growth Drivers
Several structural forces support continued market expansion:
Increasing natural catastrophe losses — insured losses from natural disasters have grown ~7% annually for several decades, driven by increasing property values in high-risk areas and (increasingly) climate change effects
Reinsurance capital constraints — traditional reinsurers face capital costs and concentration limits that make cat bonds an attractive complement rather than competitor
Investor diversification demand — with traditional asset classes increasingly correlated, institutional investors actively seek uncorrelated return sources
Expanding peril coverage — wildfire, flood, cyber, and pandemic perils are increasingly being securitized as modeling improves
Regulatory tailwinds — Solvency II and similar frameworks recognize cat bonds' risk transfer benefits, supporting sponsor demand
Conclusion
The catastrophe bond market has become a mature, institutionalized, and growing segment of global capital markets. Its combination of attractive yields, true portfolio diversification, and social utility (funding disaster resilience) positions it well for continued growth.
For real-time market data, the annual returns table, and the interactive Swiss Re index chart, visit our Market Data page. For the broader market snapshot, see Market Overview. For a guide to investing in this asset class, see the Investor Guide. For how cat bonds fit within the broader insurance-linked securities universe, see What Is ILS?. For the latest issuance announcements and market developments, see Cat Bond News.
Data in this article is based on publicly available information from Artemis, Swiss Re, and industry publications. All figures are approximations. This article is for educational purposes only.