Reinsurance collateral
Assets pledged by a reinsurer to secure its obligations toward a cedant.
Collateral is the set of assets a reinsurer pledges to secure its obligations, whether as a deposit, a trust, a letter of credit or funds withheld by the cedant. It turns a claim on a signature into a claim backed by identified assets. Credit risk is neutralized, and the reinsurer earns reinsurance credit in jurisdictions that require it. Collateral solves a trust problem between parties with no obligation to know each other: a cedant cannot audit the future solvency of a reinsurer on another continent, and collateral replaces that trust with a pledge. It has a cost, and the cost feeds into price. Tying up assets deprives the reinsurer of their use, which is why collateralized markets are structurally more expensive at equal rating. It is also why collateralized reinsurance and insurance-linked securities have mechanisms for releasing collateral progressively as obligations run off.
A collateralized reinsurance vehicle writes a 25 million euro share of a catastrophe layer in 2026 and deposits the full amount in trust. At the end of the period, no loss has occurred. 22 million is released after six months. The remaining 3 million stays trapped for a further eighteen months, until the contractual development period for late reported losses runs out.
Reinsurance collateral, reinsurance letter of credit
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