A peril and territory combination that concentrates most of the world's demand for catastrophe capacity.
A peak peril is a combination of natural hazard and territory representing a disproportionate share of world insured exposure, by reason of value density and hazard frequency. These few combinations absorb most catastrophe reinsurance capital and set the price of the whole market, since it is there that capacity becomes scarce. What the concept illuminates is portfolio construction: an investor or reinsurer cannot avoid peak perils, where the premium is, but holding nothing else means buying a single exposure dressed up as a portfolio. The strategy is therefore to dose peak peril and complete with diversifying perils, less well paid but independent in occurrence. The relative price of these two families is one of the clearest signals of the cycle: when capital is abundant, the pay gap between them narrows, and portfolio discipline becomes more expensive to maintain.
A manager builds a 900 million euro portfolio in 2026 with 54 percent in peak perils, paid at an average multiple of 2.7, and 46 percent in diversifying perils paid 4.1. The year before, the multiples were 2.2 against 4.6: the compression has made the diversifying share half as rewarding to carry, with no change in its contribution to reducing volatility.
Peak peril, Péril majeur, Peak zone, Zone de pointe