Insurance-Linked Securities Market Soars Amid Capital Influx
The insurance-linked securities market reached a historic milestone in 2025, illustrating structural shifts in how insurers, reinsurers, and disaster-exposed governments are managing catastrophic risk — and how investors are seeking diversified returns in a volatile environment, according to Swiss Re Capital Markets’ latest market insights report.
The ILS market’s trajectory in 2025 reflected a combination of favorable conditions: steady capital flowing into the asset class, a notably benign year for catastrophe losses, and investor appetite for assets that move independently of traditional markets, according to the report.
New issuance reached $24.7 billion, surpassing the previous record set in 2024 and marking the strongest year in the history of the market. Meanwhile, outstanding notional ballooned to nearly $60 billion by year-end, up from approximately $48 billion at the end of 2024.
The five-year compound annual growth rate from 2020 through 2025 reached 13.5%, while the three-year rate from 2022 to 2025 climbed to 19% — underscoring what market participants describe as sustained structural demand for ILS capacity.
Positive net cash flows into the market totaled an estimated $12.3 billion for the year, as new issuance continued to outpace scheduled bond maturities even into the fourth quarter, Swiss Re said. That inflow was reinforced by approximately $6 billion in coupon payments and significant capital deployment by UCITS funds, a category of European investment vehicles.
Diversification Emerging Beyond Traditional Wind Risk
While the ILS market has historically concentrated on U.S. wind exposures — which still accounted for 43% of 2025 primary issuances — the peril mix is gradually broadening, according to Swiss Re.
U.S. earthquake exposure nearly doubled its market share, climbing to 12.1% in 2025 [color=rgb(30, 30, 30)]from 6.6% in 2024, with issued notional rebounding sharply to $3 billion. Beyond peak perils, Swiss Re noted that issuers and investors showed increased appetite for secondary perils and non-traditional risks including cyber coverage, wildfire-only structures, and severe convective storm-only cat bonds.
The Los Angeles wildfires in January demonstrated both the risks and opportunities in this shift. While the Palisades and Eaton wildfires triggered losses in some aggregate structures, they simultaneously boosted investor confidence by functioning as a real-world stress test for outstanding CAT bond designs.
The events coincided with significant updates to wildfire modeling, and the market responded by issuing more wildfire-exposed CAT bonds than in any prior year, the report said. The California FAIR Plan’s Golden Bear transaction — a $750 million wildfire-only cat bond — became the largest of its kind to date.
Geographically, the market expanded into new frontiers, Swiss Re reported. Peak Re’s Black Kite Re 2025-1 transaction marked the first time India earthquake risk was included in a 144A CAT bond, while parametric earthquake triggers for mainland China appeared for the first time. Meanwhile, 16 first-time sponsors accessed the cat bond market during 2025, predominantly from the U.S. property insurance and regional carrier segments, often seeking alternatives to traditional reinsurance or addressing capacity constraints.
Spread Compression and Solid Investor Returns Despite Market Volatility
Investor demand has grown so robust that pricing metrics have tightened significantly., Swiss Re said The weighted average issuance spread has compressed to levels unseen since Hurricane Ian made landfall in 2022, as large capital inflows and maturing positions created substantial capacity to deploy into new deals. Secondary spreads also tightened over the course of the year, reflecting the softening reinsurance environment and ample capital available to the asset class.
That dynamic translated into compelling returns. The Swiss Re Cat Bond Total Return Index delivered 11.4% for 2025, demonstrating solid risk-adjusted performance despite macroeconomic volatility surrounding tariffs and global growth concerns. Over the five-year period from 2021 through 2025, the index posted cumulative returns of 61%, with Hurricane Ian in fall 2022 representing the only significant drawdown.
The January 2025 parametric cat bond payout following Hurricane Melissa in Jamaica illustrated another advantage attracting investors and sponsors to the market. The International Bank for Reconstruction and Development’s $150 million IBRD CAR 136 Jamaica 2024 CAT bond triggered based on pre-defined atmospheric pressure parameters and resulted in a full 100% payout within days of the hurricane’s landfall — far faster than indemnity-based loss assessments would permit. T
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