The catastrophe bond and insurance-linked securities (ILS) sector is experiencing a period of unprecedented expansion, with a remarkable performance in the third quarter of 2025. New data reveals that the market is firmly on track to achieve a historic milestone, surpassing the $20 billion mark in annual issuance for the very first time. This surge in activity underscores the growing confidence and participation from both investors and sponsors within this specialized financial domain.
Despite a slight dip in the outstanding market size during the third quarter due to maturities, the overall trajectory remains highly positive. With a strong pipeline of transactions anticipated for the fourth quarter, market experts foresee a rapid rebound and continued growth. The consistent demand for catastrophe bonds, combined with strategic capital deployment, is fueling this optimistic outlook, solidifying the market's position as a crucial component of global risk transfer mechanisms.
Record-Breaking Trajectory for Catastrophe Bond Issuance
The catastrophe bond and related insurance-linked securities (ILS) market is poised for an unprecedented achievement in 2025, with projections indicating it will exceed $20 billion in annual issuance for the first time in its history. This remarkable forecast is supported by a robust third-quarter performance, which saw new issuances reach an above-average $1.036 billion. This contribution elevated the year-to-date total to an impressive $18.6 billion by the end of September. The continued momentum reflects a strong and sustained interest from both investors seeking diversified risk exposure and sponsors looking for efficient capital market solutions for natural catastrophe risks. This period has been characterized by consistent deal flow and a healthy appetite across various segments of the ILS market.
Artemis' latest quarterly report on the catastrophe bond market highlights the significant activity witnessed in Q3 2025. The quarter's issuance comprised 23 catastrophe bond transactions, structured into 25 tranches of notes. While 64% of the quarterly issuance, totaling $665 million, originated from full Rule 144A property catastrophe bonds, privately placed transactions were numerically dominant, accounting for 17 deals. Notably, Mercury Insurance made its debut as a sponsor in the full Rule 144A catastrophe bond market. The report also indicates that the annual issuance record for the cat bond market has already been surpassed, reaching $18.6 billion, eclipsing the previous record of $17.7 billion set in July. Furthermore, records for both annual Rule 144A property cat bonds and total Rule 144A issuances (including non-cat exposures) were extended after being broken in the second quarter, demonstrating broad-based growth. This sustained activity and record-breaking figures underscore a dynamic and expanding market.
Market Growth and Future Outlook
The catastrophe bond market's growth trajectory is set to continue, with expectations for new milestones in the near future. Although the total size of the outstanding market experienced a marginal decrease in the third quarter, this was primarily due to maturities slightly outpacing new issuances. However, this temporary dip is anticipated to be short-lived, with a strong rebound projected for the fourth quarter. The market's overall strength is evident in the nine-month issuance, which saw 95 transactions, matching the annual record set in 2023 for the number of deals. This high volume of transactions, coupled with consistent investor engagement, signals a healthy and expanding market poised for further significant capital deployment. The sustained demand for natural catastrophe risk transfer solutions remains a key driver for this positive outlook.
To achieve the $20 billion annual issuance target, the market requires an additional $1.4 billion in Q4. Historically, the fourth quarter has shown robust activity, with an average issuance of $2.8 billion over the past decade, making the $20 billion milestone highly probable for 2025. The outstanding cat bond market stood at $56.1 billion at the end of Q3, a slight decrease from the end-of-Q2 high of $56.7 billion, reflecting the higher volume of maturities during the period. Nevertheless, this figure remains the second-highest recorded at the end of a quarter and represents a 13% increase compared to the end of 2024. With nearly $1.8 billion in maturities scheduled for Q4 2025 and a historical average of $2.8 billion in Q4 issuance, outright market growth from September to December is expected, further solidifying the likelihood of surpassing the $20 billion mark. This indicates strong underlying fundamentals and continued investor confidence in the ILS space.
