Record levels of catastrophe bond capital are pushing property reinsurance further towards buyers, giving insurers scope not only to negotiate lower prices but also to purchase additional protection and reconsider how much risk they retain.
AM Best estimates that reinsurance capital exceeded demand by more than 25% at the mid-year 2026 property catastrophe renewals, as traditional capacity was supplemented by continued growth in insurance-linked securities (ILS).
“The supply of capital was estimated to have surpassed demand by over 25%, driving further declines in reinsurance pricing. Capacity providers are finding market conditions attractive and are willing to accept lower prices to assume these risks,” AM Best director Matt Tuite said.
The effect is increasingly visible in renewal pricing. Guy Carpenter said its global property catastrophe rate-on-line index fell 16% at the mid-year renewals, extending the declines seen at the beginning of the year.
Howden previously recorded a 14.7% risk-adjusted fall in global property catastrophe reinsurance rates at the January 2026 renewals. UK programmes were among those recording some of the largest reductions, generally falling between 15% and 20%.
But cheaper pricing is only part of the change. Howden found that some cedants whose core programmes cost less than expected used the savings to secure supplementary cover, manage retentions and reduce volatility. Others planned to purchase additional protection.
That creates a different renewal discussion from the one insurers faced during the harder market following 2022, when higher prices and restricted capacity often forced buyers to retain more risk.
Alternative capital is also widening the options available. Guy Carpenter said cedants are making greater use of catastrophe bonds and parametric solutions in property alongside traditional reinsurance, while sidecars and other structures are being used elsewhere in the market.
The effects are also being felt beyond the reinsurance market. UK commercial property insurance rates fell 11% in the second quarter of 2026, following declines of 10% in each of the previous two quarters, according to Marsh. High competition continued to produce meaningful reductions, with capacity remaining widely available.
Lower reinsurance costs are one of several factors driving that competition, alongside strong insurer results, excess capital and investment returns. Marsh's Global Insurance Market Index showed global property insurance rates falling 12% in the second quarter.
The broader commercial insurance market remains uneven, however. Property capacity is abundant, while casualty and some geopolitically exposed classes face different pricing pressures.
That distinction becomes increasingly important as insurers and intermediaries decide where softer conditions justify pushing for lower pricing, broader coverage or changes to programme design rather than treating the market as uniformly favourable.
Behind the shift is another rapid expansion in catastrophe bond issuance.
The Rule 144A property cat bond market issued US$17.3 billion during the first half of 2026, according to AM Best, setting another record for the period. Second-quarter issuance alone reached US$11.3 billion, surpassing the previous quarterly record set in the second quarter of 2025.
“For perspective, the 2Q 2026 issuance was larger than total annual issuance for most of the history of the cat bond market, which demonstrates the rapid growth the market has experienced in recent years,” AM Best senior director Wai Tang said.
Maturing cat bond proceeds have been recycled into new transactions, while retained earnings and fresh investor capital have added to the amount of money looking for catastrophe risk.
“By underwriting and restructuring reinsurance deals at the onset of the hard market in 2023, capacity providers positioned themselves so that no cat events in the past three years have been able to dent their large buildup of retained earnings,” Tang said. How long those conditions persist will depend heavily on catastrophe losses during the remainder of 2026.
AM Best said losses so far this year have remained relatively manageable, putting attention on the North Atlantic hurricane season. A major insured event could absorb some of the surplus capital ahead of the January 2027 renewals.
If losses remain benign, however, excess capacity is likely to keep competition high. The consequence could extend beyond another round of rate reductions, leaving insurers with greater scope to buy protection that was either too expensive or harder to secure only a few years ago.
