Our January 2023 catastrophe renewal arrived in the hardest property reinsurance market I had seen. The expiring programme retained US$30 million per storm, covered losses up to US$260 million and included an aggregate cover that responded after US$90 million of annual catastrophe losses. Reinsurers proposed a US$40 million retention, a risk-adjusted per-occurrence price 37 per cent higher, and an aggregate cover at a higher attachment costing US$14 million, more than double the expiring premium.
Surplus stood at US$402 million. A second weak year behind a thinner programme could pressure our financial-strength rating, on which several agencies rely.
The chief financial officer wanted to buy the aggregate at the quoted price, since frequent mid-sized storms had hurt us most. My modelling put its expected recovery near US$6 million, less than half its cost. I recommended accepting the US$40 million retention, keeping the full per-occurrence limit and dropping the aggregate, while committing the saving to roof-age and deductible changes. The risk committee chair asked us to record which surplus level would reopen the decision. We set it at US$340 million.
We bought the programme without the aggregate, filed deductible changes in all six states and reported retained catastrophe losses to the finance and risk committee every month through the storm season.
The season was severe. Retained catastrophe losses reached US$148 million, and the dropped aggregate would have recovered US$22 million, US$8 million more than it cost. Surplus fell to US$356 million, above the trigger, but only just. In 2024 and 2025, as milder seasons arrived and rate and deductible actions earned through, the combined ratio improved to 103.1 and then 98.6 per cent. The board now approves a three-year reinsurance strategy with explicit surplus triggers rather than a single-year purchase.
I presented the expected value more confidently than its uncertainty deserved. Next time I would show directors the particular seasons in which the cover pays, not only its long-run average.