The reinsurance market has undergone significant changes in recent years. Since 2021, firms have demonstrated improved technical profitability, though investment market volatility in 2022 tempered overall earnings. A defining moment came with the 2023 renewal period, which saw sharp increases in property rates and a tightening of terms and conditions. Reinsurers raised attachment points and moved away from high-frequency, low-severity layers, reinforcing their focus on balance sheet protection rather than profit smoothing.

While 2024 results are still emerging, early indications suggest continued strength despite notable loss events towards the end of the previous year. It was anticipated that hurricanes Milton and Helene would reinforce firm pricing into 2025; however, the 1 January renewals revealed some softening in property rates, particularly at higher layers. Nonetheless, reinsurers remained steadfast in maintaining strict terms and conditions, ensuring the sustainability of underwriting discipline.

Capacity and market dynamics

The availability of sufficient capacity remains a key consideration for the market. Reinsurers now position themselves primarily as providers of balance sheet protection, leading to a sustained reluctance to engage in lower-layer risks. This shift is likely to persist in the short to medium term, reinforcing the importance of enterprise risk management and modelling improvements for cedents.

Despite expectations of new market entrants, the influx of fresh capital has remained limited. The higher interest rate environment has imposed a higher threshold for investor commitment, limiting the formation of new reinsurance entities. Instead, capacity growth has been driven by Insurance-Linked Securities (ILS) and retained earnings from traditional players. While previously viewed as competition, ILS has increasingly become a complementary source of capacity, supporting broader market stability.

Challenges in the casualty sector

One of the primary concerns within the reinsurance market is the sufficiency of casualty reserves. Several firms have undertaken reserve strengthening, extending beyond the previously identified 2014–2019 years to include post-pandemic underwriting years such as 2021 and 2022. There was an expectation that these later years were better priced; however, persistent concerns over rate adequacy in light of loss cost trends remain.

Social inflation and nuclear verdicts continue to pose challenges, particularly in the United States. Although court closures during the pandemic provided a temporary reprieve, litigation activity has rebounded, with record-high verdicts observed. The potential for tort reform remains uncertain, though recent legislative proposals in states such as Georgia and Maryland to enhance transparency in third-party litigation financing represent early steps towards addressing systemic concerns.

Interestingly, while traditional reinsurers have been cautious about casualty exposure, capacity for casualty risks remains accessible. Brokers report no major difficulties in securing cover, suggesting a divergence in market sentiment, with some players remaining bullish despite broader concerns.

The impact of major loss events

The devastating wildfires in California have significantly impacted the market, with insured loss estimates ranging from $35 billion to $50 billion. The state’s insurance market has faced sustained pressure due to repeated catastrophic events, prompting leading insurers to reassess geographic diversification and reduce exposure. The withdrawal of key players has driven increased reliance on the California FAIR Plan, the state’s insurer of last resort, as well as surplus lines insurers.

From a reinsurance perspective, while losses are expected to be material, they appear manageable at present. However, the full implications remain uncertain, particularly given concerns around demand surge and inflationary pressures, which are likely to elevate claims costs. Reinsurance pricing for the FAIR Plan and the broader market is expected to rise, ensuring adequate funding to support policyholders.

Additionally, potential casualty exposure stemming from wildfire-related lawsuits adds further complexity. Legal action has been initiated against Southern California Edison and the City of Los Angeles, with negligence claims having the potential to trigger significant liability payouts.

The recent collision involving American Airlines in Washington represents another significant loss event for the aviation insurance sector. The industry has already endured a challenging few years with high-profile incidents, and this latest event is expected to contribute to substantial liability claims. The potential for nuclear verdicts in aviation-related litigation is also a concern, reinforcing the need for careful risk assessment and pricing recalibration in this space.

Future outlook and considerations for renewals

Looking ahead, the reinsurance sector is expected to maintain a disciplined approach to underwriting. The capacity for property risk remains sufficient, albeit with reinsurers favouring higher layers over working layers. This presents challenges for cedents, particularly those facing increased frequency of secondary perils such as convective storms.

Casualty pricing is expected to exhibit continued resilience, though loss reserve development trends and emerging risks—such as PFAS and microplastics—warrant close monitoring. Exclusions on PFAS claims are becoming increasingly common due to rising concerns over long-term exposure.

For both property and casualty writers, the availability and utilisation of high-quality data, along with strong risk management capabilities, will be essential for ensuring sustainable profitability. Underwriting expertise will remain a critical differentiator in navigating the evolving risk landscape.

While challenges persist, the global reinsurance sector remains in a strong position. A commitment to disciplined underwriting, combined with favourable investment conditions, supports the continuation of the positive outlook assigned in mid-2023. However, firms must remain vigilant in managing emerging risks, reserve adequacy, and pricing discipline to sustain long-term resilience in the face of an ever-changing market environment.