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White Mountains Insurance Group, Ltd. Common Stock (WTM)

Common Stock

$566.00M

Quarterly · Period ending: Jun 30, 2026 · USD

WTM Common Stock

Latest reported$579.00Mperiod endingDec 31, 2025

Latest reported$579.00Mperiod endingDec 31, 2025

WTM FY Common Stock ($0.00 → $579.00M)

Annual common stock

High-resolution chart · PNG

WTM common stock history

Annual fiscal periods · USD. Dates are reporting period ends; fiscal years can differ from calendar years.

White Mountains Insurance Group, Ltd. Common Stock Common Stock — Annual fiscal periods (USD)
Period ending	Common Stock (USD)
Dec 31, 2025	579,000,000
Dec 31, 2024	2,600,000
Dec 31, 2023	2,600,000
Dec 31, 2022	2,600,000
Dec 31, 2021	3,000,000
Dec 31, 2020	3,100,000
Dec 31, 2019	3,200,000
Dec 31, 2018	3,200,000
Dec 31, 2017	3,800,000
Dec 31, 2016	4,600,000
Dec 31, 2015	5,600,000
Dec 31, 2014	6,000,000
Dec 31, 2013	6,200,000
Dec 31, 2012	6,300,000
Dec 31, 2011	7,600,000
Dec 31, 2010	8,200,000
Dec 31, 2009	8,900,000
Dec 31, 2008	8,800,000
Dec 31, 2007	10,500,000
Dec 31, 2006	10,800,000
Dec 31, 2005	10,800,000
Dec 31, 2004	10,800,000
Dec 31, 2003	9,000,000
Dec 31, 2002	8,400,000
Dec 31, 2001	8,300,000
Dec 31, 2000	5,900,000
Dec 31, 1999	5,900,000
Dec 31, 1998	30,900,000
Dec 31, 1997	31,000,000
Dec 31, 1996	31,900,000
Dec 31, 1995	32,700,000
Dec 31, 1994	33,600,000
Dec 31, 1993	0
Dec 31, 1992	0
Dec 31, 1991	0
Dec 31, 1990	0
Dec 31, 1989	0
Dec 31, 1988	0
Dec 31, 1987	0
Dec 31, 1986	0
Dec 31, 1985	0

Data is provided for informational purposes only and does not constitute investment advice. Past performance is not indicative of future results.