CB Chubb Limited
Best-in-class disciplined underwriter at a fair price; buying near peak cycle, so expect bond-like-plus compounding, not bargains.
The business
Chubb writes property and casualty insurance for commercial, specialty, and high-net-worth personal clients in more than 50 countries, and also sells life and accident and health insurance in Asia. It profits from underwriting, meaning premiums exceed claims and expenses, which shows up as a combined ratio in the mid-80s. It also earns investment income on a float of roughly $150B or more, held mostly in high-grade fixed income. Berkshire's stake signals what kind of business this is: a float-driven compounder.
Quality gate · 76/100
Moat & management
| Moat | wide moat |
| Source | scale |
| Trajectory | stable |
| Management | excellent |
Chubb's edge combines several things: decades of underwriting data and specialty expertise, A++/AA balance-sheet strength that brokers and large corporates demand, a global licensing and distribution footprint that is hard to copy, and the premier brand in high-net-worth personal lines. Together these let it underwrite profitably through the cycle while peers swing. Insurance is still a commodity at the margin, though, and soft markets compress returns industry-wide, so the moat protects relative performance more than absolute returns.
Evan Greenberg has kept underwriting discipline, walking away from underpriced business, and has made sensible, mostly accretive acquisitions (ACE/Chubb, Cigna Asia, Liberty Asia, Huatai). Buybacks are steady and share count falls about 2% a year, and leverage stays conservative. Succession after Greenberg is the main management question.
Owner-earnings inputs
| Owner earnings (TTM) | 11.19B |
| Owner-earnings yield | 8.1% |
| Free-cash-flow yield | 11.2% |
| Growth used (normalized) | 6.5% |
| Terminal growth | 3.0% |
| Discount rate (hurdle) | 7.4% |
Key risks
- Commercial P&C pricing is softening from peak-cycle levels in 2025-2026, which will compress underwriting margins and makes trailing earnings look like a high point
- Rising catastrophe frequency and severity from climate change and wildfire, plus social inflation in US casualty reserves (litigation funding, nuclear verdicts), could force reserve strengthening
- Investment income may normalize if rates fall, and there is key-person and succession risk around Greenberg
Catalysts
- Asia life and P&C growth (China via Huatai, Southeast Asia, Japan) supplies a long runway beyond mature US commercial lines
- Higher-for-longer reinvestment yields lift net investment income as the bond portfolio rolls over
⚠ financial — owner earnings ≈ net income · financial — valued by residual income (ROE vs cost of equity on book equity)