WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)

Corporate structure

30 entities across 4 jurisdictions, 13 in offshore financial centres. Read directly from the company’s own 10-K EX-21 filed 2026-02-27 — see the exhibit.

Financial health

Two standard screens, computed from the XBRL in FY2025 against FY2024. Every test shows the numbers behind it — a score with its inputs hidden is a number you cannot check.

Six-year record

Capital returned

What the company actually paid out and bought back, as reported — the record behind any yield figure.

Other fire, marine & casualty insurance companies

WHITE MOUNTAINS INSURANCE GROUP LTD files under SIC 6331 — all 20 fire, marine & casualty insurance companies compared on assets and F-score.

Questions about WHITE MOUNTAINS INSURANCE GROUP LTD

How many subsidiaries does WHITE MOUNTAINS INSURANCE GROUP LTD file with the SEC?

30, listed in its most recent exhibit 21. They are incorporated across 4 jurisdictions (BERMUDA, ISRAEL, LUXEMBOURG, UNITED KINGDOM). 13 of them sit in offshore financial centres. That exhibit is filed with the company's annual report and is the company's own list, not an estimate.

Is WHITE MOUNTAINS INSURANCE GROUP LTD financially healthy?

WHITE MOUNTAINS INSURANCE GROUP LTD scores 4 out of 7 on the Piotroski F-score. Only 7 of the nine tests could be computed from what it filed; the rest need a prior year it has not reported. Every test and the numbers behind it are shown above, so the arithmetic is checkable rather than something you have to take on trust.