Casualty reinsurance sidecar news

The outstanding market for collateralized reinsurance sidecar structures grew by more than $5 billion in capacity terms over the course of full-year 2025, with casualty and non-catastrophe vehicles a key driver of sidecar market expansion, Aon Securities has said.

The outstanding market for collateralized reinsurance sidecar structures has expanded rapidly, with estimates from rating agency AM Best valuing the space between $16 billion and $18 billion, which marks an 183% increase over the mid-point of the $5 billion to $7 billion range estimated by the agency in 2023.

The reinsurance sidecar market witnessed rapid growth throughout 2025, particularly in Bermuda, where a number of major re/insurers launched casualty reinsurance sidecars during the year, which demonstrates how investors have a growing interest in longer-duration casualty risk exposure that offers high yields and diversification from property catastrophe risk, says Fitch Ratings.

QBE, the global re/insurer, sees alternative reinsurance capital as an important lever to allow the company to deliver sustainable returns in the mid-teens, according to its CEO Andrew Horton and CFO Chris Killourhy, with recent catastrophe bond and casualty sidecar initiatives seen as early deals to help in building a profile within ILS markets.

AXIS Capital, the global specialty insurance and reinsurance underwriter, has put a new reporting line in place for its insurance-linked securities (ILS) division AXIS ILS, with Group Chief Underwriting Officer Dan Draper adding that to his responsibilities.

AXIS Capital continues to leverage alternative capital and partner with insurance-linked securities (ILS) investors, with these activities generating attractive fee income in 2025. While a new structure established for 2026 shows that its casualty sidecar Monarch Point Re remains a core focus for the company.

Culpeper Capital Partners is looking to scale its casualty ILS presence as part of a broader move to grow the asset class over the coming years. Moving beyond its inaugural casualty sidecar with QBE Re, firm leaders revealed to Artemis that they are already building a 2026 pipeline that includes a whole-account retrocessional deal and […]

Following the recent closure of its inaugural reinsurance sidecar transaction with QBE Re, Calidris Investment Partners has announced key leadership hires, with Marcus Foley joining the firm as Director of Quantitative Strategies, and Natasha Osborne as Director of Finance and Operations.

As the reinsurance sidecar market keeps growing, GC Securities is placing significant emphasis on this sector as a major focus for 2026, while the firm also sees a need for greater attention on helping clients secure aggregate capacity for secondary perils, executives from the firm told Artemis in a recent interview.

QBE Re, the international reinsurance arm of the global insurance group, has sponsored its first casualty reinsurance sidecar vehicle, securing over $550 million in fully collateralised quota share reinsurance through George Street Re, with the transaction backed by institutional investors Culpeper Capital Partners and Calidris Investment Partners.