White Mountains Q1 book value per share down 1% to $2,170; comprehensive loss $27M

WHITE MOUNTAINS INSURANCE GROUP LTD

2026-Q1 EPS reported -$12.59 revenue$517,800,000

Book value per share $2,170, down 0.8% in quarter; comprehensive loss $(27)M vs $35M income a year ago.
Ark/WM Outrigger combined ratio improved to 91% from 97%; Ark's 91% includes 7 pts catastrophe losses from Iran war.
Kudu adjusted EBITDA $17M, trailing 12-mo ROE 12%; HG Global gross written premiums up 24% to $8M.
MediaAlpha carrying value fell to $166M from $231M at year-end due to share price drop to $9.30.
Deployed $125M into Bishop Street Underwriters; two WTM Partner acquisitions in Q2 (BaseSix ~$97M, Hawkeye ~$35M).

item 2.02 item 9.01

Key facts

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Earnings Releases SEC 8-K Item 2.02 confidence 0.9

WHITE MOUNTAINS INSURANCE GROUP LTD reported financial results for the three months ended March 31, 2026.

Period: the three months ended March 31, 2026
Result: reported results

Exact text from the filing

On May 6, 2026 , White Mountains Insurance Group, Ltd. issued a press release announcing its results for the three months ended March 31, 2026.

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Source: SEC EDGAR

accession 0001628280-26-030930

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