Cat Bonds in 2025: Three Consecutive Double-Digit Years

The Swiss Re Global Cat Bond Total Return Index posted an 11.40% return in 2025, the sixth-best year in the benchmark's history. It completed the index's first run of three consecutive years of double-digit returns (2023: +19.69%, 2024: +17.29%, 2025: +11.40%).

The asset class returned 11.4% in a year when it absorbed a record $25.6 billion in new issuance, a $40 billion wildfire event in January, and its first high-profile parametric trigger payout in years. Investors who followed the market through the lean years of 2017–2022 had not seen it take losses of that kind and still post a double-digit return.

2025 was also a year of transition. The "super-cycle" phase (peak SOFR, hard-market spreads at 4x expected loss multiples, and almost no principal impairment) has given way to what analysts are calling normalized maturity: tighter spreads, lower collateral yields, and the first meaningful loss drag the market has absorbed in three years. What drove the return, and what compressed it, sets the baseline for forward expectations.

Decomposing the 11.40% Return

All three components of cat bond returns (collateral yield, insurance risk spread, and loss drag) shifted in 2025 relative to prior years.

Component	2025 Contribution (Est.)	Context
Collateral yield (SOFR)	~4.35%	Down from ~5.33% peak in 2024 as the Fed began a measured easing cycle
Insurance risk spread	~7.50%	Still elevated, but ~10–15% compressed from 2024 peaks due to record supply
Loss and price drag	−0.45%	LA Wildfires and Hurricane Melissa payouts; first meaningful loss impact since Ian
Total return	11.40%	Sixth-best year in the index's history

The risk-free floor declined as expected once the Fed shifted to easing. The insurance spread, the premium investors earn for assuming catastrophe exposure, remained well above historical averages but compresses mechanically when supply surges, as it did. And for the first time since 2022, actual loss events left a mark on the index.

None of these shifts was large on its own. Together they explain why 2025 returned 11.4% rather than the 15–17% that the market's starting yield would have suggested at the beginning of the year.

The Three Defining Events

Record Issuance: $25.6 Billion

Total new cat bond issuance reached a record $25.6 billion, a 45% increase over the prior year, pushing the total outstanding market to $61.3 billion. Both figures are all-time highs.

Sponsors issued into deep investor appetite while spreads, though compressing, remained historically high. Governments, non-traditional sponsors, and repeat issuers all accelerated their programs. For investors, the practical effect was a more liquid secondary market and more options at new issue, at the cost of some incremental spread compression as capital competed for allocations.

Spreads that had reached 4.0x expected loss multiples at the 2023–2024 peak moved toward 3.5x by mid-2025, still well above the long-run 2–3x average. The market absorbed record capital without giving up that premium.

The LA Wildfires (January 2025)

The Los Angeles Wildfires of January 2025 generated approximately $40 billion in insured losses, among the costliest wildfire events in US history. The California FAIR Plan, the state's insurer of last resort, had issued a $750 million catastrophe bond in 2024 specifically to support its wildfire exposure; that bond experienced immediate mark-to-market pressure as the event unfolded.

Many California-exposed bonds were positioned above the actual loss thresholds, and the market recovered the majority of the mark-to-market declines by Q3 as loss estimates settled and trigger calculations clarified. The FAIR Plan bond, despite being the largest wildfire cat bond ever issued, ultimately held up through the event.

The episode introduced approximately 30–40 basis points of index drag during Q1. The market processed it more calmly than many observers expected, and recovered faster than it did after Ian in 2022–2023.

Hurricane Melissa and the Parametric Payout (November 2025)

Unlike 2024, which saw an active hurricane season fail to breach cat bond attachment points, 2025 produced a significant parametric trigger. Hurricane Melissa, a Category 5 storm that made landfall in the Caribbean in November, triggered a 100% payout of the World Bank's $150 million parametric catastrophe bond for Jamaica.

The payout was triggered within days of landfall, based on wind speed measurements at designated stations. Jamaica received its full $150 million before traditional insurance assessments had even begun. For investors, the loss was contained, expected (the bond was priced with Jamaica hurricane risk explicitly modeled), and handled through exactly the mechanism the structure was designed for.

The drag on the index was modest, roughly 15–20 basis points at the portfolio level. The more useful result was evidence that a parametric trigger pays out as designed under Category 5 conditions.

Structural Shifts in 2025

Cyber ILS Becomes a Permanent Sub-Sector

In 2025 cyber catastrophe bonds moved from experimental to established. Beazley and Chubb sponsored major cyber ILS transactions of $300 million and $150 million respectively, for a peril that had previously been considered too difficult to model for capital markets purposes.

Cyber risk is essentially uncorrelated with natural catastrophe exposure: a major hurricane does not affect the probability of a systemic cyber event, and vice versa. Adding cyber to a cat bond portfolio therefore adds spread income without adding correlated natural catastrophe risk. That property will make cyber ILS increasingly attractive to portfolio managers seeking to maintain yield as natural catastrophe spreads normalize.

Active Managers Converge With the Index

The gap between active ILS fund managers and the Swiss Re benchmark narrowed in 2025. In 2023 and 2024, many actively managed funds lagged the index by 150–300 basis points, largely due to cash drag, higher fees, and conservative positioning that underweighted the highest-spread segments of the market.

In 2025, the dynamics reversed. Managers who had positioned defensively (underweighting specific parametric structures with complex wildfire exposure, for example) largely avoided the worst of the Q1 mark-to-market losses. Several managers matched or slightly exceeded the 11.40% benchmark return, in an asset class where persistent index outperformance by active managers has historically been difficult to demonstrate.

2023–2025 in Context

The three-year run from 2023 to 2025 has produced a combined gain of approximately 56%, unprecedented in the cat bond market's two-decade history.

Year	Return	Primary Character
2023	+19.69%	Recovery: hard spreads + peak SOFR + mark-to-market recovery post-Ian
2024	+17.29%	Pure carry: hard spreads + peak SOFR, zero loss drag
2025	+11.40%	Normalization: spread compression + SOFR decline + first loss drag since 2022

Each year reflected the market's position in the post-Ian repricing cycle. 2023 was the recovery year, when three engines fired simultaneously. 2024 was the pure-carry year, when those engines continued without a recovery tailwind. 2025 was the transition year, when SOFR declined, spreads compressed, and the market absorbed its first real loss events.

The transition still produced 11.40%. The structural changes negotiated in 2023 (elevated attachment points, stricter trigger definitions, tighter sponsor disclosure requirements) held under a $40 billion wildfire event and a Category 5 hurricane, and the index still finished well above its long-run historical average of 7–9%.

What 2025 Signals for the Path Forward

The forward-looking picture involves three adjustments:

Lower collateral yield. SOFR will continue declining as the Fed completes its easing cycle. The risk-free component of total cat bond yield, which contributed nearly 30% of total return at the 2024 peak, will normalize toward 3–4% over the medium term. Investors who sized positions assuming 5%+ SOFR in perpetuity need to adjust their return expectations accordingly.

Sustained but compressed spreads. The record $25.6 billion in 2025 issuance absorbed without a market breakdown shows how deep investor demand runs. Spreads at 3.5x expected loss remain historically high, even if they are below the 2023–2024 peak. The market's new equilibrium appears to be in the 3.0–4.0x range rather than the 4.0–4.5x range seen at the cycle peak.

Active loss environment. 2025 confirmed that the environment of near-zero cat bond losses that characterized 2023–2024 was a product of both good structural design and favorable catastrophe outcomes. The elevated attachment points remain in place, but loss events will occur in a market this size. Portfolios should be sized and diversified with that expectation built in, rather than treating losses as a tail risk.

Taken together, a well-constructed cat bond portfolio in 2026–2027 should realistically target 7–10% total returns: well above investment-grade fixed income and competitive with high-yield credit at lower correlation. Investors still anchored to the 2023–2025 figures should reset return targets and position sizing to that range.