The latest closing stock price for White Mountains Insurance Group as of June 17, 2026 is 2003.49.
An investor who bought $1,000 worth of White Mountains Insurance Group stock at the IPO in 1985 would have $111,427 today, roughly 111 times their original investment - a 12.21% compound annual growth rate over 41 years.
The all-time high White Mountains Insurance Group stock closing price was 2319.41 on April 17, 2026.
The White Mountains Insurance Group 52-week high stock price is 2333.00, which is 16.4% above the current share price.
The White Mountains Insurance Group 52-week low stock price is 1648.00, which is 17.7% below the current share price.
The average White Mountains Insurance Group stock price for the last 52 weeks is 1994.91.
An investor who bought $1,000 worth of White Mountains Insurance Group stock at the IPO in 1985 would have $111,427 today, roughly 111 times their original investment - a 12.21% compound annual growth rate over 41 years.
The all-time high White Mountains Insurance Group stock closing price was 2319.41 on April 17, 2026.
The White Mountains Insurance Group 52-week high stock price is 2333.00, which is 16.4% above the current share price.
The White Mountains Insurance Group 52-week low stock price is 1648.00, which is 17.7% below the current share price.
The average White Mountains Insurance Group stock price for the last 52 weeks is 1994.91.