White Mountains Insurance Group - 35 Year Stock Price History | WTM

Historical daily share price chart and data for White Mountains Insurance Group since 1986 adjusted for splits. The latest closing stock price for White Mountains Insurance Group as of September 24, 2021 is 1096.38.
  • The all-time high White Mountains Insurance Group stock closing price was 1267.52 on February 22, 2021.
  • The White Mountains Insurance Group 52-week high stock price is 1267.52, which is 15.6% above the current share price.
  • The White Mountains Insurance Group 52-week low stock price is 765.49, which is 30.2% below the current share price.
  • The average White Mountains Insurance Group stock price for the last 52 weeks is 1081.49.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
White Mountains Insurance Group Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2021 1135.3950 1014.5900 1267.5200 1010.0000 1096.3800 9.57%
2020 934.7888 1122.9000 1164.5200 696.0400 1000.6600 -10.30%
2019 1007.6863 855.0000 1129.1100 850.7500 1115.5100 30.06%
2018 881.5804 848.0500 979.0100 789.0500 857.6900 0.75%
2017 874.2179 849.6000 947.0000 839.5100 851.2800 1.82%
2016 807.0725 720.1200 868.0000 699.4700 836.0500 15.03%
2015 702.7488 632.0000 808.0000 618.0000 726.8100 15.35%
2014 610.1537 600.8600 674.7100 559.2600 630.1100 4.48%
2013 577.5002 523.5000 610.5000 523.5000 603.0800 17.10%
2012 508.5098 455.8400 547.6700 439.9400 515.0000 13.57%
2011 393.0226 343.7600 453.4600 340.0000 453.4600 35.12%
2010 328.0778 335.5000 362.9000 297.2200 335.6000 0.88%
2009 255.8439 263.4000 338.0800 150.0000 332.6600 24.54%
2008 422.2775 509.0000 510.0000 211.7500 267.1100 -48.04%
2007 554.1984 580.0000 606.4000 500.0000 514.0500 -11.28%
2006 533.7577 555.1000 602.2500 450.3000 579.4300 3.74%
2005 626.6221 631.0100 702.5000 555.6300 558.5500 -13.54%
2004 516.4260 454.0000 659.0000 453.5000 646.0000 40.45%
2003 384.2781 323.5000 461.0000 311.7000 459.9500 42.40%
2002 328.0341 350.0000 378.0000 284.5000 323.0000 -7.18%
2001 333.6596 315.7500 391.0000 290.0000 348.0000 9.09%
2000 174.6476 117.5000 319.0000 102.0000 319.0000 164.73%
1999 133.8223 142.0000 150.0000 116.0000 120.5000 -13.97%
1998 136.5350 122.0000 153.1200 117.0000 140.0600 15.75%
1997 106.7651 95.7500 124.0000 95.0000 121.0000 26.37%
1996 83.5378 74.3800 95.7500 72.3800 95.7500 28.52%
1995 71.6994 72.5000 76.0000 66.2500 74.5000 3.11%
1994 71.3385 76.2500 79.2500 60.5000 72.2500 -7.96%
1993 83.2882 72.0000 92.3800 71.6200 78.5000 9.03%
1992 68.8191 69.6200 74.0000 63.0000 72.0000 3.03%
1991 62.5406 52.5000 70.1200 50.5000 69.8800 34.70%
1990 38.5752 35.2500 51.8800 29.7500 51.8800 49.29%
1989 34.6752 29.1200 40.2500 29.0000 34.7500 18.80%
1988 29.6852 26.5000 33.3800 25.7500 29.2500 13.59%
1987 34.9720 35.0000 42.0000 24.1200 25.7500 -26.68%
Sector Industry Market Cap Revenue
Finance Property, Casualty and Title Insurance $3.406B $1.181B
White Mountains Insurance Group, Ltd. is engaged in the business of property and casualty insurance and reinsurance.
Stock Name Country Market Cap PE Ratio
Berkshire Hathaway (BRK.A) United States $630.098B 26.71
Berkshire Hathaway (BRK.B) United States $628.145B 26.62
Chubb (CB) Switzerland $77.547B 15.61
Progressive (PGR) United States $53.578B 13.21
Travelers (TRV) United States $39.036B 11.01
Allstate (ALL) United States $38.586B 6.97
Markel (MKL) United States $16.840B 24.79
Fidelity National Financial (FNF) United States $13.130B 6.47
W.R Berkley (WRB) United States $13.015B 19.19
CNA Financial (CNA) United States $11.313B 10.05
American Financial (AFG) United States $11.221B 12.84
Everest Re Group (RE) Bermuda $10.149B 11.41
Alleghany (Y) United States $8.748B 16.95
First American Financial (FAF) United States $7.425B 9.40
RenaissanceRe Holdings (RNR) Bermuda $6.613B 93.59
Hanover Insurance (THG) United States $4.752B 13.32
RLI (RLI) United States $4.621B 32.66
Axis Capital Holdings (AXS) Bermuda $3.821B 22.53
Mercury General (MCY) United States $3.099B 11.02
Argos (ARGO) Bermuda $1.771B 43.07
Stewart Information Services (STC) United States $1.685B 6.67
ProAssurance (PRA) United States $1.266B 36.64
HCI (HCI) United States $0.948B 0.00
Ambac Financial (AMBC) United States $0.655B 0.00
UNIVERSAL INSURANCE HOLDINGS INC (UVE) United States $0.407B 0.00
Heritage Insurance Holdings (HRTG) United States $0.198B 0.00
Kingsway Financial Services (KFS) United States $0.128B 0.00