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White Mountains Insurance Group, Ltd. (WTM)

Financial Services | Insurance - Property & Casualty | Hamilton, Bermuda | NYSE
2,135.41 USD +7.84 (0.368%) ⇧ (Aug. 28, 2026, 4:01 p.m. EDT)
After hours: 2,135.41

Short-term:★★⯪☆☆Long-term:★★★★⯪Dividends:★★☆☆☆
Hot Take | Aug. 22, 2026, 4:35 a.m. EDT

The long-term investment case is exceptionally strong, driven by a dominant competitive position and a fortress-like balance sheet. Over the last nine years, the business has delivered a cumulative gain of nearly 126%, with eight out of nine years showing positive growth, indicating sustained operational excellence. The company trades at a significant discount to its book value (P/B under 1.0x) while generating robust returns on equity (over 20%) and healthy profit margins. Despite a recent insider sale of $21 million, which suggests some caution, the underlying fundamentals—sustained revenue growth, strong cash generation, and a clean balance sheet—justify a high-conviction buy-and-hold stance. The short-term outlook remains neutral; the stock is trading near its 200-day average with no immediate explosive momentum, and the statistical forecast model offers no directional edge for the coming weeks. Regarding income, the dividend yield is modest at roughly 0.5%, and while the payout ratio appears low relative to earnings, the absolute yield is insufficient to be considered a primary income vehicle, offering only a token return above inflation.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoETS ✓0.040636
AutoARIMA0.040695
MSTL0.041138
AutoTheta0.060997

Forecast horizon: 45 days | Selected: AutoETS

Forecast Reliability
Score 49%
H-stat 31.75
Ljung-Box p 0.000
Jarque-Bera p 0.115
Excess Kurtosis -1.48
Attribute Value
Sector Financial Services
Ex Dividend Date 2026-03-15
Last Dividend Date 2026-03-15
Debt to Equity Ratio 14.915
Revenue per Share 1202.349
Market Cap 5,096,627,712
Trailing P/E 4.89
Forward P/E 23.73
Beta 0.30
Profit Margins 37.66%
Website https://www.whitemountains.com

Dividend Data

Yield Summary
Last Yield 1yr Yield 3yr Avg 5yr Avg
0.05% 0.05% 0.05% 0.06%
Dividend History
Date Dividend Yield %
2026-03-16 1.000 0.045461
2025-03-17 1.000 0.052964
2024-03-08 1.000 0.058041
2023-03-10 1.000 0.072287
2022-03-11 1.000 0.096035
2021-03-12 1.000 0.084746
2020-03-13 1.000 0.119596
2019-03-15 1.000 0.108814
2018-03-16 1.000 0.122539
2017-03-16 1.000 0.110041
2016-03-17 1.000 0.126263
2015-03-12 1.000 0.149203
2014-03-13 1.000 0.173647
2013-03-14 1.000 0.177440
2012-03-22 1.000 0.200602
2011-03-17 1.000 0.283688
2010-03-18 1.000 0.282087
2009-03-12 1.000 0.611359
2008-06-12 2.000 0.443292
2008-03-13 2.000 0.419762
2007-12-13 2.000 0.382066
2007-09-13 2.000 0.378086
2007-06-14 2.000 0.333389
2007-03-15 2.000 0.363636
2006-12-14 2.000 0.337838
2006-09-14 2.000 0.388992
2006-06-15 2.000 0.387222
2006-03-09 2.000 0.360360
2005-12-15 2.000 0.336417
2005-09-15 2.000 0.315956
2005-06-09 2.000 0.309358
2005-03-10 2.000 0.299850
2004-03-11 1.000 0.210084
2003-03-13 1.000 0.311526
2002-03-14 1.000 0.298507
2001-03-15 1.000 0.327761
2000-09-14 0.400 0.240421
2000-06-15 0.400 0.250000
2000-03-09 0.400 0.355556
1999-12-09 0.400 0.340607
1999-09-09 0.400 0.292906
1999-06-10 0.400 0.282686
1999-03-11 0.400 0.308285
1998-12-10 0.400 0.289331
1998-09-10 0.400 0.335782
1998-06-04 0.400 0.270042
1998-03-05 0.400 0.300752
1997-12-04 0.200 0.163599
1997-09-04 0.200 0.188568
1997-06-05 0.200 0.194647
1997-03-07 0.200 0.186263
1996-12-05 0.200 0.217391
1996-09-05 0.200 0.220386
1991-11-21 0.170 0.254682
1991-08-22 0.170 0.266145
1991-05-22 0.170 0.266667
1991-02-21 0.170 0.296296
1990-11-21 0.170 0.360743
1990-08-23 0.170 0.370572
1990-05-23 0.170 0.533333
1990-02-22 0.170 0.548387
1989-11-22 0.150 0.436364
1989-08-24 0.150 0.409556
1989-05-24 0.150 0.454545
1989-02-23 0.150 0.458015
1988-11-23 0.125 0.434783
1988-08-25 0.125 0.398406
1988-05-25 0.125 0.452489
1988-02-25 0.125 0.438596
1987-11-19 0.100 0.357143
1987-08-20 0.100 0.253165
1987-05-20 0.100 0.286738
1987-02-26 0.100 0.245399
1986-11-20 0.075 0.229008
1986-08-21 0.075 0.189873
1986-05-22 0.075 0.203390
Additional Data
dividendRate 1.0
dividendYield 0.05
exDividendDate 2026-03-16
trailingAnnualDividendRate 1.0
trailingAnnualDividendYield 0.00047001976
lastDividendValue 1.0
lastDividendDate 2026-03-16
dividendDate 2026-03-25

Info Dump

Attribute Value
52 Week Change 0.15843487
Address1 A.S. Cooper Building
Address2 Suite 601 26 Reid Street
All Time High 2,333.0
All Time Low 24.125
Ask 2,134.07
Ask Size 60
Audit Risk 4
Average Daily Volume10 Day 19,780
Average Daily Volume3 Month 20,570
Average Volume 20,570
Average Volume10Days 19,780
Beta 0.297
Bid 2,135.24
Bid Size 20
Board Risk 3
Book Value 2,197.768
City Hamilton
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 2
Country Bermuda
Crypto Tradeable 0
Currency USD
Current Price 2,135.41
Current Ratio 1.423
Custom Price Alert Confidence HIGH
Date Short Interest 1,786,665,600
Day High 2,149.25
Day Low 2,117.49
Debt To Equity 14.915
Display Name White Mountains Insurance
Dividend Date 1,774,396,800
Dividend Rate 1.0
Dividend Yield 0.05
Earnings Growth 0.688
Earnings Quarterly Growth 0.623
Earnings Timestamp 1,786,019,400
Earnings Timestamp End 1,793,881,800
Earnings Timestamp Start 1,793,881,800
Ebitda 748,600,000
Ebitda Margins 0.25132
Enterprise To Ebitda 7.68
Enterprise To Revenue 1.93
Enterprise Value 5,749,309,952
Eps Forward 90.0
Eps Trailing Twelve Months 436.58
Esg Populated 0
Ex Dividend Date 1,773,619,200
Exchange NYQ
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fax 441 278 3170
Fifty Day Average 2,129.5051
Fifty Day Average Change 5.904785
Fifty Day Average Change Percent 0.002772844
Fifty Two Week Change Percent 15.843487
Fifty Two Week High 2,333.0
Fifty Two Week High Change -197.59009
Fifty Two Week High Change Percent -0.084693566
Fifty Two Week Low 1,648.0
Fifty Two Week Low Change 487.4099
Fifty Two Week Low Change Percent 0.29575846
Fifty Two Week Range 1,648.0 - 2333.0
Financial Currency USD
First Trade Date Milliseconds 498,922,200,000
Five Year Avg Dividend Yield 0.07
Float Shares 2,277,057
Forward Eps 90.0
Forward P E 23.726776
Free Cashflow 687,000,000
Full Exchange Name NYSE
Full Time Employees 1,648
Fullday Change 7.83984
Fullday Change Percent 0.368488
Fullday Price 2,135.41
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,785,542,400
Gross Margins 0.53335
Gross Profits 1,588,700,032
Has Pre Post Market Data 1
Held Percent Insiders 0.03225
Held Percent Institutions 0.96329004
Implied Shares Outstanding 2,386,721
Industry Insurance - Property & Casualty
Industry Disp Insurance - Property & Casualty
Industry Key insurance-property-casualty
Is Earnings Date Estimate 1
Language en-US
Last Dividend Date 1,773,619,200
Last Dividend Value 1.0
Last Fiscal Year End 1,767,139,200
Long Business Summary White Mountains Insurance Group, Ltd. provides insurance services in the United States, the United Kingdom, Bermuda, and internationally. It operates through Ark/WM Outrigger, HG Global, Kudu, Distinguished, and Other Operations segments. The company offers property insurance and reinsurance; specialty insurance and reinsurance consisting of aviation, contingency, cyber, fine art and specie, mortgage, nuclear, political and credit, space, surety, and terrorism and political violence; marine and energy insurance and reinsurance; casualty insurance and reinsurance, such as medical malpractice, and professional and general liability; and accident and health insurance and reinsurance, which includes personal accident, sickness, disability, travel, short-term life, and medical products through brokers, managing general agents (MGA), and reinsurance intermediaries. It also provides municipal bond guarantee reinsurance, which focuses on single risk limits for small-to-medium sized, and public investment grade municipal bonds that are issued to finance public purpose projects, including schools, utilities, and transportation facilities. In addition, the company offers capital solutions for boutique asset and wealth managers for generational ownership transfers, management buyouts, acquisition and growth finance, and legacy partner liquidity; strategic advice; investment management; and specialty electrical contracting services. Further, it operates as a full-service MGA and program administrator for specialty property and casualty insurance for the real estate and hospitality end markets, and start-up programs; and an MGA for leisure travel and global expatriate medical insurance in Israel, the European Union, and Australia. The company was formerly known as Fund American Enterprises Holdings, Inc. and changed its name to White Mountains Insurance Group, Ltd. in 1999. White Mountains Insurance Group, Ltd. was incorporated in 1980 and is headquartered in Hamilton, Bermuda.
Long Name White Mountains Insurance Group, Ltd.
Market us_market
Market Cap 5,096,627,712
Market State CLOSED
Max Age 86,400
Message Board Id finmb_273887
Most Recent Quarter 1,782,777,600
Net Income To Common 1,098,599,936
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 5,077,915,997
Open 2,133.03
Operating Cashflow 388,200,000
Operating Margins 0.36408
Overall Risk 2
Payout Ratio 0.0023
Peg Ratio 0.81
Phone 441 278 3160
Post Market Change 0.0
Post Market Change Percent 0.0
Post Market Price 2,135.41
Post Market Time 1,787,959,904
Previous Close 2,127.57
Price Hint 2
Price To Book 0.9716266
Price To Sales Trailing12 Months 1.7110242
Profit Margins 0.37664002
Quick Ratio 0.931
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key none
Region US
Regular Market Change 7.83984
Regular Market Change Percent 0.368488
Regular Market Day High 2,149.25
Regular Market Day Low 2,117.49
Regular Market Day Range 2,117.49 - 2149.25
Regular Market Open 2,133.03
Regular Market Previous Close 2,127.57
Regular Market Price 2,135.41
Regular Market Time 1,787,947,303
Regular Market Volume 18,405
Return On Assets 0.03546
Return On Equity 0.20364
Revenue Growth 0.225
Revenue Per Share 1,202.349
Sand P52 Week Change 0.20504117
Sector Financial Services
Sector Disp Financial Services
Sector Key financial-services
Share Holder Rights Risk 3
Shares Outstanding 2,386,721
Shares Percent Shares Out 0.0571
Shares Short 136,316
Shares Short Previous Month Date 1,784,073,600
Shares Short Prior Month 138,306
Short Name White Mountains Insurance Group
Short Percent Of Float 0.0589
Short Ratio 6.97
Source Interval 15
Symbol WTM
Total Cash 1,075,900,032
Total Cash Per Share 456.847
Total Debt 932,499,968
Total Revenue 2,978,700,032
Tradeable 0
Trailing Annual Dividend Rate 1.0
Trailing Annual Dividend Yield 0.00047001976
Trailing Eps 436.58
Trailing P E 4.8912225
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 2,118.8416
Two Hundred Day Average Change 16.56836
Two Hundred Day Average Change Percent 0.007819537
Type Disp Equity
Volume 18,405
Website https://www.whitemountains.com
Zip HM 11