Cat bonds go turbo: arthur re’s one-week issuance fuels ILS market boom
The gist
Cat bonds just got a turbo boost—Arthur Re’s one-week issuance is fueling a record-breaking $135B insurance-linked securities market and changing the way insurers access capital.
What to know
- The ILS market soared to $135 billion in 2025, up $21 billion thanks to surging institutional appetite for catastrophe bonds.
- Gallagher Re’s Arthur Re platform now lets insurers issue multi-year catastrophe bonds in just one week—down from the usual six to eight.
- More than half of institutional investors are targeting scalable, transparent ILS solutions, as insurers make alternative capital a must-have in their risk strategies.
Cat Bonds Hit New Heights
A record influx of institutional capital is fueling unprecedented growth in catastrophe bonds, with investors seeking tailored, transparent ILS structures and pushing the market’s maturity to new levels.
By early 2026, the insurance-linked securities (ILS) market demonstrated robust expansion, marked by record catastrophe bond issuance and a significant $21 billion increase in non-life alternative reinsurance capital to $135 billion in 2025, according to Gallagher Re data. This surge reflects a broadening investor base increasingly attracted to private ILS and casualty risks, underscoring the sector's growing maturity and appeal.
Institutional investor appetite for catastrophe bonds has notably intensified, with Hiscox Capital Partners alone growing its ILS assets under management to $2.4 billion by April 2026, fueled by $1 billion of inflows primarily directed to catastrophe bond funds. This trend aligns with a Gallagher Securities survey revealing that 60% of institutional investors plan to increase their ILS allocations over the next two years, with 79% specifically targeting catastrophe bonds due to their repeatable deal mechanics, clearly defined downside, and post-loss transparency, as emphasized by CEO Jason Bolding.
Investor preferences are evolving toward scalable, transparent ILS structures that offer direct access to underwriting returns, highlighting a shift in capital deployment strategies. Gallagher Securities notes that sidecar and structured balance sheet solutions are gaining traction, with 53% of investors planning allocations to these tailored risk exposures, reflecting a desire for less commoditized instruments within the ILS space.
The growing sophistication and appetite among institutional investors are driven by the uncorrelated nature of ILS assets relative to public markets, offering diversified returns and direct exposure to property catastrophe re/insurance performance. Nearly 73% of survey respondents cited this access as a key motivator, illustrating how the sector’s appeal extends beyond traditional investment paradigms to embrace nuanced risk-return profiles.
Arthur Re’s One-Week Revolution
By compressing issuance to a single week, Arthur Re is transforming retrocession and cat bond deals, enabling insurers like Oak Global to double transaction size and access multi-year protection with unmatched speed.
Since its 2023 launch by Gallagher Re and Gallagher Securities, Arthur Re Ltd. has revolutionized catastrophe bond issuance by condensing the traditionally six-to-eight-week process into roughly one week. This Bermuda-based special purpose insurer platform uniquely marries the simplicity of industry loss warranty (ILW) trading with the broad capital market reach of fully syndicated 144A cat bonds, thereby lowering execution risk and enabling cedants to swiftly capitalize on favorable market windows. As CEO Jason Bolding explains, this fusion offers the ease of ILWs without sacrificing the advantages of capital markets execution, providing tactical benefits to both sponsors and investors.
Arthur Re’s streamlined issuance capabilities were vividly demonstrated in Oak Global’s debut catastrophe bond transaction. Initially targeting a $75 million issuance, the Quercian Re 2026-1 notes were ultimately upsized 100% to $150 million and priced below initial guidance at a 7% risk interest spread, underscoring strong investor demand and effective deal structuring. This multi-year retrocessional protection, covering US and Canada named storms, earthquakes, and wildfires, not only diversified Oak’s underwriting portfolio but also exemplified how Arthur Re facilitates easier access to multi-year capacity by converting more industry-loss warranty retrocession business into catastrophe bonds.
Gallagher Re’s product-agnostic approach is embodied in Arthur Re’s design, which integrates innovative retrocession solutions to secure the most suitable and cost-efficient capital for clients. Paddy Ellis, Global Head of Retrocession, emphasizes that this platform exemplifies their commitment to flexibility and innovation, allowing multiple cedants to transact across various insurance-linked securities formats within the 144A catastrophe bond market. By early 2026, Arthur Re had already established itself as a critical conduit for simplifying and accelerating cat bond transactions, as evidenced by Oak Global’s successful issuance.
ILS Becomes Core Strategy
Insurers and reinsurers are now embedding ILS and cat bonds as strategic pillars, leveraging platforms like Arthur Re to rapidly redeploy capital in response to major maturities and shifting market windows.
By early 2026, insurers and reinsurers are no longer debating whether to incorporate insurance-linked securities (ILS) and alternative capital but are focused on how to strategically embed these instruments as critical extensions of traditional reinsurance. Jason Bolding, CEO of Gallagher Securities, highlights that tools like catastrophe bonds, ILS instruments, and reinsurance sidecars serve as powerful complements that enable firms to diversify and optimize their capital bases, aligning medium and long-term strategies with growing investor appetite for insurance capital.
This evolving integration demands enhanced transparency, sophisticated capital structures, and precise alignment between risk originators and capital providers to build resilience and sustainable growth. Bolding underscores that while investor enthusiasm is robust, the challenge lies in deploying capital efficiently and with precision, requiring deep expertise to navigate the expanding insurance capital market and maintain governance standards.
Gallagher Securities’ Arthur Re platform exemplifies this strategic integration by dramatically accelerating the issuance of index-based catastrophe bonds—from the typical six-to-eight weeks down to just one week—thereby reducing execution risk and enabling insurers and reinsurers to tactically deploy capital in response to fleeting market opportunities. As Bolding explains, this rapid issuance capability allows clients to capitalize on significant maturities and early redemptions, such as the $4 billion maturing in June 2026 and $1.25 billion of TWIA bonds being redeemed early, enhancing both resilience and growth potential.
Arthur Re also innovates by combining the simplicity and transparency of industry loss warranty (ILW) trading with the scale and governance of fully syndicated 144A catastrophe bond transactions, offering flexible capital solutions that align closely with traditional reinsurance structures. This hybrid approach, as Bolding notes, marries ease of execution with broader capital markets advantages, reinforcing the platform’s role in the seamless strategic integration of ILS into insurers’ capital management frameworks.