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White Mountains Insurance (WTM) Non Operating Investment Income (2016 - 2025)

White Mountains Insurance has reported Non Operating Investment Income over the past 17 years, most recently at $110.3 million for Q4 2025.

  • Quarterly results put Non Operating Investment Income at $110.3 million for Q4 2025, up 153.67% from a year ago — trailing twelve months through Dec 2025 was $361.5 million (up 95.51% YoY), and the annual figure for FY2025 was $361.5 million, up 95.51%.
  • Non Operating Investment Income for Q4 2025 was $110.3 million at White Mountains Insurance, up from $83.9 million in the prior quarter.
  • Over the last five years, Non Operating Investment Income for WTM hit a ceiling of $283.0 million in Q4 2023 and a floor of -$396.8 million in Q3 2021.
  • Median Non Operating Investment Income over the past 5 years was $63.7 million (2022), compared with a mean of $36.7 million.
  • Biggest five-year swings in Non Operating Investment Income: skyrocketed 953.72% in 2023 and later plummeted 628.07% in 2024.
  • White Mountains Insurance's Non Operating Investment Income stood at $79.4 million in 2021, then dropped by 19.77% to $63.7 million in 2022, then surged by 344.27% to $283.0 million in 2023, then tumbled by 172.61% to -$205.5 million in 2024, then soared by 153.67% to $110.3 million in 2025.
  • The last three reported values for Non Operating Investment Income were $110.3 million (Q4 2025), $83.9 million (Q3 2025), and $117.3 million (Q2 2025) per Business Quant data.