White Mountains Insurance Group is a specialty insurance and reinsurance holding company known for opportunistic capital allocation. It builds, acquires and exits underwriting and related financial businesses rather than running a single consumer-facing brand. Management emphasizes underwriting discipline and deploying capital where risk–reward looks attractive across the specialty insurance landscape. Investors and counterparties typically view it as a long-term insurance capital allocator more than a monoline carrier.
| Quarter | Revenue | YoY % | Earnings | YoY % |
|---|---|---|---|---|
| Q1 2025 | 577.8 | — | 33.6 | — |
| Q2 2025 | 689.2 | — | 121.3 | — |
| Q3 2025 | 864.2 | — | 112.3 | — |
| Q4 2025 | 754.3 | — | 822.8 | — |
| Q1 2026 | 517.8 | -10.4% | -30.8 | -191.7% |
| Q2 2026 | 844.6 | 22.6% | 194 | 59.9% |
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