Cat Bonds Hit $18B in H1 2026: What the Records Actually Mean

Catastrophe bond issuance reached $17.98 billion in the first half of 2026 across 83 deals, a half-year record, with the outstanding market closing June 30 at $65.6 billion.

The total is not the number to read. The 12 first-time sponsors and the 81% share of risk capital still on indemnity triggers are, because together they push loss-estimate judgment on thin-history perils further into the capital markets than a capacity figure shows.

Key Takeaways

• $17.98 billion across 83 transactions beat the prior H1 record of $17.56 billion on 72 deals, with $11.3 billion in the second quarter alone across a record 48 transactions.
• 12 first-time sponsors, edging the 11 in H1 2025, and the debuts are bringing perils the index has rarely priced rather than another Florida wind tranche.
• 81% of risk capital rode indemnity triggers, up from 79%, so settlement runs through the sponsor's own incurred losses rather than a third-party index.
• A $750 million wildfire bond from the California FAIR Plan is more than triple the previous largest wildfire cat bond, the $200 million deal from 2018.
• Average spread above expected loss fell to 3.74% in Q2, the lowest since 3.19% in Q1 2023 and the first sub-4% reading in 20 quarters.

Six Records, One Report

H1 2026 Catastrophe Bond Market Records vs. Prior Period

Metric	H1 2026	Prior Record
Total issuance (144A + private)	$17.98B	$17.56B (H1 2025)
Rule 144A cat bond issuance	$17.7B	n/a, new high
144A property cat issuance	$17.3B	n/a, new high
Number of deals	83	72 (H1 2025)
First-time sponsors	12	11 (H1 2025)
Single-month issuance	$6.93B (May 2026)	$5.93B (May 2025)
Outstanding market, period end	$65.6B (June 30)	$63.9B (Q1 2026 end)

Rule 144A cat bonds alone reached $17.7 billion, with 144A property cat at $17.3 billion, and May produced $6.93 billion, a single-month record ahead of May 2025's $5.93 billion.

The transaction count is the figure worth sitting with. Only 2023, 2024 and 2025 produced more deals in a full calendar year; full-year 2024 closed just 10 ahead of this half-year's count, and full-year 2023 finished at 95. A market that needed twelve months to clear 80-plus transactions is now doing it in six.

That acceleration is what is pulling first-time sponsors and non-peak perils into the pipeline faster than the modeling infrastructure built around peak perils absorbs them.

Indemnity at 81% Puts the Loss Estimate With the Debut Sponsor

The sponsor roster used to be short and repetitive: Florida Citizens, Everest, Chubb, the state wind pools, a few European nationals writing European wind. The H1 2026 debuts are a different set.

Gothaer Allgemeine priced the first cat bond focused solely on German river flood in June 2026, EUR 100 million of Yardstick Re Series 2026-1 notes clearing at 1.95%, the bottom of reduced guidance, on a Moody's rating and a four-year indemnity term. California FAIR Plan targeted $250 million for its debut Golden Bear Re and closed at $750 million, more than triple the prior wildfire record of $200 million from 2018, with Class A notes at a 9.75% spread after twice-reduced guidance, roughly 11% below the initial midpoint, running three years on indemnity.

Fidelis brought a $75 million Woody Re transaction for Syndicate 3123 at Lloyd's, priced at 8.25% on an industry loss index across named storm, earthquake, severe thunderstorm, winter storm and wildfire in North America.

The trigger choice is what separates them actuarially. An index trigger externalizes the measurement: investors price basis risk against a published third-party loss figure they can verify. Fidelis went that way, on a syndicate that wrote roughly $200 million of gross premium in its first year and holds approved 2026 capacity above $1 billion, which is a young book with limited loss history.

Gothaer and the FAIR Plan both went indemnity. That routes the entire chain through the sponsor's own work: the modeled expected loss that priced the notes, the attachment probability the rating agency accepted, and the loss adjustment methodology that determines the payout after a qualifying flood or wildfire. Investors are underwriting the sponsor's reserving discipline alongside the peril, on perils with almost no prior transactions to benchmark against.

That is a materially different exposure from a sixth renewal of a well-worn program, where the model, the loss history and the claims-handling record have been repriced annually for years. The term sheet mechanics look identical; the information behind the spread is not.

Spread Compression Is Doing Work the Loss History Cannot

Q2 average spread above expected loss came in at 3.74%, the lowest quarterly reading since 3.19% in Q1 2023 and the first sub-4% print in 20 consecutive quarters. Aon Securities attributed part of it to "greater investor comfort with non-peak perils and more cedents using capital markets alongside reinsurance."

The timing is not coincidence, it is the mechanism. Roughly $14.7 billion of cat bond principal matures across 2026, $11.4 billion of it in the first half, and that principal plus coupon income is the cash chasing this year's issuance.

Peak-peril competition cannot absorb it. Global property cat rates on line fell 16% through the July 1 cycle and sit 23% below the 2024 peak, the steepest annual decline since the late 1990s, though still 32% above the 2017 trough. Reinsurer return on equity is tracking 14% to 15% for 2026 against roughly 19% in 2025, which the July 1 cost-of-capital analysis tied to the same overhang, and reinsurance capital hit a record $790 billion at March 31.

So the marginal ILS dollar has two destinations: compete on price for another peak-peril renewal, or take a new peril and a new sponsor at a spread that still clears the return hurdle. The second is where the diversification argument lives, and it is also where the loss history is thinnest.

That leaves the newest transactions in the index priced in an environment where investor demand rather than peril-specific experience is tightening the spread. A German flood debut and a two-year-old syndicate's index deal are not pricing off the same information base as a repeat peak-peril renewal, and benchmarking one against the other treats a model-risk premium as though it were a market-clearing level.

Further Reading on actuary.info

• Florida Citizens' 88% ILS Tower Sets a Cedant Template Few Insurers Can Replicate: A single cedant program where issuance depth and repeat-sponsor credibility pushed capital-markets participation to the highest share on record.
• Record $790B Reinsurance Capital Reshapes Cedant Program Optimization: How the same capital overhang pushing ILS spreads down is changing traditional treaty structuring for cedants.
• Property Cat at -23% from Peak: Reinsurer ROE and the 2027 Cost-of-Capital Horizon: The July 1 renewal data and the ROE arithmetic behind the current softening cycle.
• AXA XL's Galileo Re: The First U.S. Terrorism Catastrophe Bond: Another peril-expansion debut, and what it signals about ILS investors underwriting non-natural-catastrophe risk.
• Cat Bond Spread Compression Tests Retro Pricing: The spread mechanics behind the softening documented here, with the Everest Kilimanjaro III Re transaction as benchmark.
• Cat Bond H1 2026 Targets $17B as European Sponsors Reshape the ILS Market: The mid-cycle read on this same H1 2026 issuance wave, with sponsor profiles on Gothaer, Zurich's return, and the CEA's Sutter Re upsize.
• Hannover Re's 60%-Upsized Retro Bond Signals a Deliberate Soft-Market Strategy: How Hannover Re used the Q2 2026 spread compression documented here to fund book growth, while Munich Re shrank volume instead.
• Non-Marine Retro Rates Fall 20% as a Record Wave of Cat Bond Sponsors Enters: The nine first-time sponsors behind this quarter's record cat bond count, and what their debut deals reveal about PML management economics.
• USAA's $825M Cat Bond Adds a First-Ever Florida-Only Tranche: USAA's largest-ever sponsorship, priced into this same record H1 market, introduces the program's first Florida-only per-occurrence layer.
• Cat Bonds Go 78% Indemnity as Aggregate Cover Shrinks to 36%: The September follow-up to this piece, reading the year-to-date indemnity share against the shrinking aggregate share of outstanding limit as one basis-risk trade.