White Mountains Insurance Group Reports Third Quarter 2026 Results
White Mountains Insurance Group (NYSE: WTM) reported a book value per share of $2,243 for the third quarter of 2026, representing a 1% decrease from the previous quarter. While operating results remained solid across several subsidiaries, the decline was primarily driven by unrealized investment losses resulting from higher interest rates and a significant 24% drop in the share price of MediaAlpha. Despite these headwinds, certain segments showed strength: Ark achieved a 75% combined ratio with $386 million in gross written premiums, and HG Global reached record quarterly gross written premiums of $19 million. However, the company faced catastrophe losses related to the war in Iran within its specialty lines. The firm maintains approximately $0.8 billion in undeployed capital as it navigates a volatile interest rate environment.
Tickers: $WTM
Topics: book value per share gross written premiums investment losses operating results