White Mountains Q1 net loss USD 27.2 million; book value per share falls 0.8% to USD 2,170

White Mountains Insurance Group Ltd

White Mountains Insurance Group Ltd

WTM

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  • White Mountains Insurance Group reported a net loss attributable to common shareholders of $27.2 million, swinging from profit a year earlier.
  • Book value per share slipped 0.8% year-to-date to $2,170, including dividends.
  • Comprehensive loss attributable to common shareholders was $26.6 million, reflecting $65 million of unrealized investment losses from MediaAlpha.
  • Ark/WM Outrigger combined ratio improved 6 percentage points to 91% as gross written premiums eased to $1.09 billion.
  • Undeployed capital was about $0.8 billion following a $125 million investment in Bishop Street Underwriters, with WTM Partners also closing acquisitions of BaseSix Systems for about $97 million and Hawkeye Electric for about $35 million.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. White Mountains Insurance Group Ltd. published the original content used to generate this news brief on May 06, 2026, and is solely responsible for the information contained therein.