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White Mountains Insurance Group (WTM) Stock Chart & Stock Price History

White Mountains Insurance Group logo
$1,842.21 +177.65 (+10.67%)
Closing price 10/3/2025 03:59 PM Eastern
Extended Trading
$1,895.00 +52.80 (+2.87%)
As of 10/3/2025 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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White Mountains Insurance Group Stock Price Performance

The White Mountains Insurance Group (WTM) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 3.72%, with a year-to-date return of -5.29%. In the past month, the stock has increased 2.72%, reflecting recent market activity.

As of the latest close, White Mountains Insurance Group traded at $1,842.21 with a market cap of $4.75 billion and volume of 88,762 shares. Five years ago, the stock traded at $804.03, representing a 129.12% increase over that period. At the time, it had a market cap of $2.49 billion and a volume of 21,674 shares.

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5 Day
Performance
+10.08%
1 Month
Performance
+2.72%
3 Month
Performance
+3.19%
Year-To-Date
Performance
-5.29%
1 Year
Performance
+3.72%
5 Year
Performance
+129.12%

WTM Stock Chart for Sunday, October, 5, 2025

WTM Chart by TradingView

White Mountains Insurance Group Stock Price History

Export to Excel
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
10/03/2025$1,663.44$1,842.21
+10.75%		$1,866.22$1,784.7888,762 shs$4.75 billion
10/02/2025$1,648.88$1,663.44
+0.88%		$1,678.88$1,650.0028,846 shs$4.29 billion
10/01/2025$1,673.48$1,648.88
-1.47%		$1,670.00$1,648.0027,614 shs$4.25 billion
09/30/2025$1,678.37$1,673.48
-0.29%		$1,678.88$1,663.7133,761 shs$4.32 billion
09/29/2025$1,715.72$1,678.37
-2.18%		$1,718.30$1,659.1750,398 shs$4.33 billion
09/26/2025$1,691.62$1,715.72
+1.42%		$1,736.00$1,694.9532,314 shs$4.43 billion
09/25/2025$1,757.84$1,691.62
-3.77%		$1,755.00$1,687.4731,167 shs$4.36 billion
09/24/2025$1,766.13$1,757.84
-0.47%		$1,783.50$1,755.7027,496 shs$4.54 billion
09/23/2025$1,765.49$1,766.13
+0.04%		$1,781.09$1,762.6038,309 shs$4.56 billion
09/22/2025$1,773.25$1,765.49
-0.44%		$1,768.00$1,749.6735,467 shs$4.55 billion
09/19/2025$1,754.76$1,773.25
+1.05%		$1,776.22$1,735.0045,923 shs$4.57 billion
09/18/2025$1,722.34$1,754.76
+1.88%		$1,760.71$1,715.0032,919 shs$4.53 billion
09/17/2025$1,715.69$1,722.34
+0.39%		$1,728.48$1,711.3929,401 shs$4.44 billion
09/16/2025$1,716.27$1,715.69
-0.03%		$1,719.40$1,700.0029,377 shs$4.43 billion
09/15/2025$1,763.04$1,716.27
-2.65%		$1,772.00$1,711.2840,379 shs$4.43 billion
09/12/2025$1,770.86$1,763.04
-0.44%		$1,785.77$1,762.8126,557 shs$4.55 billion
09/11/2025$1,761.74$1,770.86
+0.52%		$1,774.51$1,752.0033,590 shs$4.57 billion
09/10/2025$1,796.50$1,761.74
-1.93%		$1,790.00$1,752.8837,377 shs$4.55 billion
09/09/2025$1,760.95$1,796.50
+2.02%		$1,800.06$1,762.7182,797 shs$4.63 billion
09/08/2025$1,793.41$1,760.95
-1.81%		$1,800.00$1,748.4130,833 shs$4.54 billion
09/05/2025$1,797.86$1,793.41
-0.25%		$1,816.00$1,792.0020,905 shs$4.63 billion
09/04/2025$1,771.32$1,797.86
+1.50%		$1,800.51$1,767.1526,917 shs$4.64 billion
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This page (NYSE:WTM) was last updated on 10/5/2025 by MarketBeat.com Staff
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