SOMPO × ASPEN$3.5B
GALLAGHER × ASSUREDPARTNERS$13.4B
P&C COMBINED RATIO~99%
MEDIAN CARRIER ROE~11%
BAIN × LINCOLN FINANCIAL$825M / 9.9%
HIPPO HOME LOSS RATIO121%
ASPEN IPO · AHL$2.76B
STATE FARM CA RATE+17%
SOMPO × ASPEN$3.5B
GALLAGHER × ASSUREDPARTNERS$13.4B
P&C COMBINED RATIO~99%
MEDIAN CARRIER ROE~11%
BAIN × LINCOLN FINANCIAL$825M / 9.9%
HIPPO HOME LOSS RATIO121%
ASPEN IPO · AHL$2.76B
STATE FARM CA RATE+17%
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Slide, Accelerant and Neptune Flood test the IPO window

The insurance IPO window cracked open just wide enough for three very different carriers to price. Cat-bond issuance did the rest of the talking.

Tyler Schapiro, CFA, CPAOct 13, 20255 min read
IPO
SLIDE · ACCELERANT · NEPTUNE

Slide, Accelerant, and Neptune Flood all priced inside a six-week window — the first meaningful cluster of insurance IPOs since 2021. Each is a different bet: Slide on Florida homeowners consolidation, Accelerant on program-carrier architecture, Neptune on flood as a standalone line.

Investors rewarded scale and specialty focus over growth-at-any-cost. Books were oversubscribed where the underwriting narrative was tight; deals with a broader insurtech pitch had to trim price.

Meanwhile, catastrophe-bond issuance kept setting quarterly records. Alternative capital is now a structural feature of the reinsurance market, not a cyclical one, and it is quietly reshaping how primary carriers hedge peak-zone exposure.

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Tyler Schapiro, CFA, CPA

Founder of Owning Risk. Independent research on the business of insurance and the flow of risk capital.