White Mountains Insurance Group WTM Ark — Assumed
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Where this comes from
Reported directly by White Mountains Insurance Group in its filing.
Tagged under the XBRL concept us-gaap:AssumedPremiumsEarned.
The official record: White Mountains Insurance Group’s 10-K, filed February 27, 2026, on SEC EDGAR. View the filing →
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Questions, answered.
- What is White Mountains Insurance Group's ark — assumed?
- White Mountains Insurance Group (WTM) reported ark — assumed of $299.73M in Q4 2025.
- How has White Mountains Insurance Group's ark — assumed changed year-over-year?
- White Mountains Insurance Group's ark — assumed increased by 10.2% year-over-year, from $272.05M to $299.73M.
- What is the long-term trend for White Mountains Insurance Group's ark — assumed?
- Over 4 years (2021 to 2025), White Mountains Insurance Group's ark — assumed has grown at a 38.0% compound annual growth rate (CAGR), from $330.4M to $1.2B.
- What does ark — assumed mean?
- Refers to the volume of insurance risk and premiums that the segment accepts from other insurance companies through reinsurance agreements. This metric indicates the segment's role as a reinsurer and its appetite for taking on risk from the broader market. Growth in assumed business reflects the segment's competitive position and its expansion into new risk pools.