WHITE MOUNTAINS INSURANCE GROUP, LTD. — Earnings
Most recent reported period: FY2025 (Q4) (filed for period ending 2025-12-31) · sourced from SEC EDGAR
Next earnings (estimated): Wed, April 1, 2026 — 30 days overdue (likely already filed but EDGAR cache cold). Anchored to latest quarter-end + 91 days. Analyst-confirmed dates land in a follow-up wave.
YoY = vs same quarter prior year (seasonality-adjusted)
Recent earnings · last 8 quarters
| Quarter end | Revenue | YoY | Net Income | YoY | Op. Margin |
|---|---|---|---|---|---|
| 2025-12-31 | $1.60B | ↑+348.0% | $836M | — | — |
| 2025-09-30 | $864M | ↑+3.0% | $114M | ↓-36.4% | — |
| 2025-06-30 | $689M | ↑+74.3% | $123M | ↑+325.1% | — |
| 2025-03-31 | $578M | ↓-10.7% | $34M | ↓-85.7% | — |
| 2024-12-31 | $358M | ↓-51.4% | — | — | — |
| 2024-09-30 | $839M | ↑+61.5% | $179M | ↑+658.5% | — |
| 2024-06-30 | $395M | ↑+4.5% | $-55M | ↓-378.6% | — |
| 2024-03-31 | $647M | ↑+21.7% | $236M | ↑+31.7% | — |
Analyst consensus estimates (EPS / Revenue) and implied move from options will land in a follow-up wave. For now, YoY-vs-prior-year-quarter is the surprise proxy.
Last earnings · FY2025 (Q4)
Revenue
$1.60B
↑+348.0% +$1.25B YoY
Net Income
$836M
↑+155.3% +$508M YoY
Earnings surprise · last 8 quarters
YoY % change · proxy for analyst surprise until estimates landEPS history · last 10 fiscal years
diluted, GAAP, annualNote: EPS reflects WEIGHTED-AVERAGE diluted shares for each fiscal year. Pre-stock- split values can blow up the early bars if SEC's XBRL data isn't split-adjusted — flagged as a known limitation; cumulative split-adjustment is a follow-up.
Go deeper
WTM Sankey — flow of dollars
See how revenue waterfalls through every line item to net income for the latest reported quarter, with prior-period comparison.
Open SankeyWTM Key Metrics — EPS, ROE, ROIC
10 CFA-grade fundamental ratios — EPS, BVPS, ROE, ROA, ROIC, Debt/Equity, Current Ratio. Compare across years.
Open Key Metrics