KBRA Affirms Rating for Prospero Re Ltd.
4 Jun 2026 | New York
KBRA affirms the insurance financial strength rating (IFSR) of A for Prospero Re Ltd. The Outlook for the rating is Stable.
The rating reflects Prospero Re’s strong risk-adjusted capitalization, conservative underwriting leverage, and liquid investment profile, balanced by its limited scale, concentrated premium base, earnings volatility, and exposure to property catastrophe, specialty, and reserve risk. Prospero Re’s 302% BSCR coverage ratio at year-end 2025, lack of financial leverage, and investment portfolio concentrated in cash, cash equivalents, and short-duration AA+ fixed income securities support the rating. The rating also incorporates the strategic benefits Prospero Re receives from the broader Resolute Global Partners (RGP) ecosystem, including access to sourcing channels, underwriting expertise, capital-management flexibility, and strategic relationships across collateralized reinsurance, US insurance, Lloyd’s specialty insurance, and open-market reinsurance. These strengths are partially offset by the company’s evolving transition toward a rated balance sheet model, which increases reliance on underwriting discipline, reserving, risk selection, and capital management as more business is supported by Prospero Re’s own balance sheet. Prospero Re returned to profitability in 2025, but results remain exposed to property catastrophe losses, specialty reinsurance volatility, and prior-year reserve development, including development associated with Russia/Ukraine-exposed marine and energy contracts.
Sustained profitable underwriting results across market cycles with materially lower prior year reserve volatility, sustained risk-adjusted capitalization above management's risk appetite while growing the non-collateralized book of business, further diversification of premium and earnings by business segment and counterparty, and/or strengthened market position without materially increasing underwriting leverage or investment risk beyond current KBRA expectations could result in positive rating momentum. On the other hand, continued material adverse reserve development or catastrophe/specialty losses that significantly weaken earnings or capital, sustained risk-based capitalization that falls below management's stated risk appetite, elevated underwriting leverage without commensurate capital support, liquidity or asset quality deterioration, material weakening of the strategic benefit from the broader RGP platform, and/or material deterioration in governance, risk management or underwriting controls as the company assumes more non-collateralized business might result in negative rating momentum.
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