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WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) stock — the fundamentals (P/E, market cap, valuation) and every material event, decoded in plain English.

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) stock — financials & valuation

Key numbers for WHITE MOUNTAINS INSURANCE GROUP LTD (WTM): P/E ratio, market cap, profit margins, returns, and whether the stock looks cheap or expensive versus its own 5-year range.

AllSight quality score: 70/100 — a percentile rank of WHITE MOUNTAINS INSURANCE GROUP LTD’s fundamentals against Finance & Real Estate peers, weakest on financial health. A quality ranking, not a price prediction.

Market cap$4.8B
P / E4.4×
P / S1.2×
EV / EBITDA4.0×
Gross margin66.9%
Operating margin36.3%
Net margin30.8%
Return on equity20.4%
ROIC17.8%
Revenue growth55.4%
Debt / equity0.2×
Dividend yield0.1%

Is WHITE MOUNTAINS INSURANCE GROUP LTD overvalued? P/E looks undervalued vs its 5-year range; P/S looks undervalued vs its 5-year range; EV/EBITDA looks undervalued vs its 5-year range; P/B looks fair vs its 5-year range.

Independent of the events above — derived from WHITE MOUNTAINS INSURANCE GROUP LTD’s own financial statements and shown as context, never as advice.

Aug 27, 2026Board expansion
White Mountains adds Stephen Klar to 11-member board with no deal attached
Aug 6, 2026
Book value rose 4% as investment gains amplified solid underwriting
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