In the dynamic world of insurance-linked securities (ILS) and catastrophe bonds, Schroders Capital is championing a proactive approach to risk assessment. Senior Investment Director ILS, Mark Gibson, and Head of Analytics, ILS, Christoph Hummel, recently published insights highlighting the critical need for asset managers to develop an 'own view of risk' rather than solely relying on third-party vendor models. Their commentary emphasizes that while established models provide a strong foundation, augmenting them with internal expertise can significantly refine investment strategies and enhance portfolio resilience in the face of evolving natural perils.
While the ILS market has greatly benefited from sophisticated, independent risk models developed over decades, Gibson and Hummel point out that these tools are not without limitations. A deep understanding of these constraints is crucial for making well-informed investment decisions in catastrophe bonds. They specifically cite the issue of aging exposure data and the often-slow update cycles of vendor models. The underlying portfolio's exposure changes continuously, but model updates can lag by a decade or more, leading to a mismatch between modeled risk and real-world conditions. This discrepancy is particularly evident when considering the impacts of climate change and inflation on loss costs.
Recent years have underscored the challenges posed by secondary perils like severe convective storms, floods, and wildfires. These events have frequently exceeded their modeled return periods, demonstrating a clear divergence between historical data-driven predictions and current realities. The California wildfires in January 2025, for instance, set a new record for insured fire losses, a trend that Schroders Capital's internal analysis suggests cannot be fully explained by the latest vendor model updates alone. This illustrates a critical gap that necessitates an in-house modeling approach to accurately capture and assess emerging risks.
Schroders Capital's Insurance-Linked Securities team actively addresses these limitations by not only validating vendor models but also developing proprietary methods to adjust them. This often involves replacing specific model components with internal developments, creating a refined 'house view' for evaluating new bond opportunities. This internal adjustment can lead to a more conservative, yet more accurate, assessment of risk. For example, an event modeled as a 100-year loss by a vendor might be re-evaluated as a 50-year event using Schroders' adjusted model, providing a clearer picture of potential exposures.
This refined approach has demonstrated tangible benefits, as evidenced during the California wildfires. By managing portfolios based on their own risk assessment, Schroders Capital was significantly underweight in bonds exposed to California wildfire risk and, more broadly, to secondary perils. This strategic positioning, though potentially leading to lower headline yield expectations when compared to unadjusted models, ultimately enhances long-term confidence in investment outcomes by providing a more realistic understanding of potential losses. This is not a criticism of vendor platforms, but rather an affirmation of the value of active validation and the development of an individualized risk perspective.
The continuous evolution of natural catastrophe models necessitates this dual approach. Combining reliance on robust vendor models with rigorous internal validation and adjustment processes will continue to be advantageous for investors. This comprehensive strategy empowers managers and investors in the ILS market to gain a deeper understanding of risk and return possibilities, ultimately leading to more informed and resilient investment decisions within the evolving landscape of global catastrophe risk.
