Operating margin · 2019–2025
White Mountains Insurance operating margin
35.6%+151.6% · FY2025
White Mountains Insurance (WTM) reported 35.6% in operating margin for fiscal 2025, +151.6% year on year.
| Fiscal year | Operating margin | Change | Filing |
|---|---|---|---|
| FY2025 | 35.6% | +151.6% | Derived |
| FY2024 | 14.1% | −45.8% | Derived |
| FY2023 | 26.1% | +39.0 pp | Derived |
| FY2022 | −12.9% | +31.6 pp | Derived |
| FY2021 | −44.5% | −118.3 pp | Derived |
| FY2020 | 73.7% | +62.6% | Derived |
| FY2019 | 45.3% | — | Derived |
Operating margin — Operating margin is operating income divided by revenue. Only companies with at least $1 billion in revenue are ranked here.
Every row links to its own SEC filing · Fiscal year 2025 · Data as of September 25, 2026 · 2019–2025 compound annual growth −4.0%
Calculated from two reported figures, so it has no single filing of its own.
Operating margin at companies of similar size
Cite this page
Ready-made references for the figures on this page, as published on September 25, 2026.
Wikipedia
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CompaniesRanked. (September 25, 2026). White Mountains Insurance operating margin. CompaniesRanked. https://companiesranked.com/en/company/white-mountains-insurance/operating-marginBibTeX
@misc{companiesranked-en-company-white-mountains-insurance-operating-margin-2026,
author = {{CompaniesRanked}},
title = {{White Mountains Insurance operating margin}},
year = {2026},
howpublished = {\url{https://companiesranked.com/en/company/white-mountains-insurance/operating-margin}},
note = {Compiled from SEC EDGAR XBRL filings; data as of 2026-09-25},
urldate = {2026-09-25}
}The figures are rebuilt with every data refresh, so the reference carries the publication date. Add your own access date if your style requires one.