The Rising Cost of Quiet Calamities: Swiss Re Highlights a Shift in Global Risk

Swiss Re Institute analysis reveals 92% of 2025's $107B insured catastrophe losses came from secondary perils like storms and wildfires, highlighting rising structural risks for reinsurers.

A new analysis from the Swiss Re Institute underscores a significant evolution in the financial impact of natural disasters. The research, published on March 19, 2026, indicates that catastrophic losses are climbing even during periods without headline-grabbing mega-events, fundamentally altering the risk landscape for the reinsurance industry.

A Record Year Driven by Secondary Perils

The global tally for insured losses from natural catastrophes reached USD 107 billion in 2025. This figure is particularly striking given the absence of a major hurricane making landfall in the continental United States. Despite this, a record 92% of the year’s damages were attributed to secondary perils. These events, which include severe thunderstorms and wildfires, accounted for the overwhelming majority of costs. The Los Angeles wildfires alone resulted in approximately USD 40 billion in insured losses, while severe convective storms contributed a further USD 51 billion.

The institute is careful to frame 2025 not as a year of relief but one of fortunate variability. It emphasizes that the below-average damage total was primarily due to favorable atmospheric conditions rather than any reduction in underlying risk exposure.

Exposure Growth: The Core Driver of Losses

The long-term upward trend in catastrophe costs is being fueled less by climate change in isolation and more by a steady increase in societal exposure. Swiss Re’s analysis reveals that between 1970 and 2025, factors such as population growth, the accumulation of valuable assets in high-risk zones, and rising reconstruction costs explain over 80% of the growth in global losses. This dynamic creates persistent structural pressure on reinsurers’ business models and profitability.

Looking ahead, Swiss Re’s projections for 2026 anticipate insured losses of around USD 148 billion. The company’s models also outline an extreme scenario where losses could potentially reach as high as USD 320 billion. Reflecting the cautious sentiment within the sector, Swiss Re shares currently trade roughly 3.6% below their 200-day moving average. The institute’s latest findings are likely to intensify ongoing industry debates about premium pricing and the availability of risk capital in the face of this evolving threat matrix.