White Mountains Insurance Group - 40 Year Stock Price History | WTM

The latest closing stock price for White Mountains Insurance Group as of May 16, 2025 is 1811.50.

  • An investor who bought $1,000 worth of White Mountains Insurance Group stock at the IPO in 1985 would have $100,606 today, roughly 101 times their original investment - a 12.25% compound annual growth rate over 40 years.
  • The all-time high White Mountains Insurance Group stock closing price was 2013.93 on November 25, 2024.
  • The White Mountains Insurance Group 52-week high stock price is 2023.00, which is 11.7% above the current share price.
  • The White Mountains Insurance Group 52-week low stock price is 1666.22, which is 8% below the current share price.
  • The average White Mountains Insurance Group stock price for the last 52 weeks is 1820.87.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

White Mountains Insurance Group - 40 Year Stock Price History | WTM

  • An investor who bought $1,000 worth of White Mountains Insurance Group stock at the IPO in 1985 would have $100,606 today, roughly 101 times their original investment - a 12.25% compound annual growth rate over 40 years.
  • The all-time high White Mountains Insurance Group stock closing price was 2013.93 on November 25, 2024.
  • The White Mountains Insurance Group 52-week high stock price is 2023.00, which is 11.7% above the current share price.
  • The White Mountains Insurance Group 52-week low stock price is 1666.22, which is 8% below the current share price.
  • The average White Mountains Insurance Group stock price for the last 52 weeks is 1820.87.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.