Aon says alternative reinsurance capital hits record $144.5 billion in ILS report

• Catastrophe bond issuance hit $24.9 billion in the 12 months to June 30, 2026, up 15% from the prior record.
• Outstanding catastrophe bond volume rose 17% to $63.4 billion, implying an estimated 11.6% decade-long compound annual growth rate.
• Sidecar capital outstanding reached about $23 billion across property and casualty, up about 50% from year-end 2024.

Aon’s ILS Annual Report (Aug. 2026) flagged alternative capital at a record $144.5 billion, up about 8.3% annually over five years.