The financials
White Mountains Insurance Group, Ltd. by the numbers
White Mountains Insurance Group, Ltd. (WTM) reported revenue of $518M in Q1 2026 (quarter ended Mar 31, 2026), down 10% from the same quarter a year earlier. That came with net loss of $26M. For the full year FY2025, revenue was $3.73B (+67% year on year) and net income $1.20B. Its largest segment in Jun 2026 was Ark Insurance Holdings Limited WM Outrigger Re at $440M, 65% of the disclosed total, well ahead of WTM Partners LLC at 14%.
| Income statement | Q1 2026 | Q1 2025 | Change |
|---|---|---|---|
| Revenue | $518M | $578M | −10% |
| Net income | −$26M | $63M | to a loss |
| Diluted EPS | −$12.59 | $13.19 | to a loss |
| Operating | Revenue | Share |
|---|---|---|
| Ark Insurance Holdings Limited WM Outrigger Re | $440M | 65% |
| WTM Partners LLC | $93M | 14% |
| Kudu Investment Management LLC | $69M | 10% |
| Distinguished Partners | $57M | 8.5% |
| HG Global | $20M | 3.0% |
Business Segments
Revenue split by operating segment, from SEC XBRL filings.
Latest period: Jun 2026Total $679.1M (+37%)
Kudu Investment Management LLC grew +238% year on yearBamboo Insurance Services LLC -100% year on year
Segment Latestquarter on quarteryear on year
- Ark Insurance Holdings Limited WM Outrigger Re$439.6M$439.6MQoQ +17%year on year -1.9%+17%-1.9%
- WTM Partners LLC$92.8M$92.8MQoQ -year on year +117%-+117%
- Kudu Investment Management LLC$68.9M$68.9MQoQ +9.4%year on year +238%+9.4%+238%
- Distinguished Partners$57.4M$57.4MQoQ +42%year on year -+42%-
- HG Global$20.4M$20.4MQoQ -year on year -16%--16%
- Bamboo Insurance Services LLC$0.00$0.00QoQ -year on year -100%--100%
Insurance - Property & Casualty
Ranks #9 of 23 by Smart Score