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1D
1W
1M
3M
6M
YTD
1Y
2Y
5Y
ALL
Market cap
$5.25B
EPS
54.14
P/E ratio
38.1
Price to sales
2.1
Dividend yield
0.049%
Beta
0.358848
Previous close
$2,044.87
Today's open
$2,043.85
Day's range
$2,035.43 - $2,054.85
52 week range
$1,648 - $2,127.97
show more
CEO
Liam Caffrey
Employees
893
Headquarters
Hanover, NH
Exchange
New York Stock Exchange
Shares outstanding
2553106
Issue type
Common Stock
Finance
Insurance
White Mountains Completes Sale of Bamboo
HAMILTON, Bermuda , Dec. 8, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that it has completed the sale of a controlling interest in Bamboo to affiliates of funds advised by CVC Capital Partners ("CVC").
PRNewsWire • Dec 8, 2025

Congress Beat the Market Again—Here Are the 3 Stocks They Bought
The issue of banning Congressional stock trading is gaining momentum. It's not only retail investors who are drawing attention to the issue.
MarketBeat • Dec 1, 2025

Touchstone Small Cap Fund Q3 2025 Contributors And Detractors
Among the largest contributors to Fund performance were Armstrong World Industries, Ingevity Corporation, and Graham Holdings Co. Graham Holdings outperformed the benchmark on strong second quarter results, led by solid growth in Kaplan Education and the continued expansion of its Healthcare segment. Among the largest detractors from Fund performance were Interparfums, Haemonetics Corporation, and White Mountains Insurance Group.
Seeking Alpha • Nov 26, 2025

White Mountains to Commence Self-Tender Offer to Purchase Up To $300 Million In Value of Its Common Shares
HAMILTON, Bermuda , Nov. 21, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today that it has commenced a "modified Dutch auction" self-tender offer to purchase up to $300 million in value of its common shares, at a purchase price not greater than $2,050 nor less than $1,850 per share, in cash, less any applicable withholding taxes and without interest.
PRNewsWire • Nov 21, 2025

The London Company Small Cap Q3 2025 Performance Update
The London Company Small Cap portfolio increased 1.9% gross (1.6% net) during the quarter vs. a 12.4% increase in the Russell 2000 Index. Armstrong World Industries' shares outperformed in the quarter due to beating expectations, driven by better-than-expected volumes, favorable positioning in key verticals, and strong operating leverage. Interparfums was a bottom holding as retailers are managing inventory more cautiously and the overall fragrance market has softened.
Seeking Alpha • Nov 7, 2025

WHITE MOUNTAINS REPORTS THIRD QUARTER RESULTS
HAMILTON, Bermuda , Nov. 6, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported book value per share of $1,851 as of September 30, 2025, an increase of 3% for the third quarter of 2025 and 6% for the first nine months of 2025, including dividends.
PRNewsWire • Nov 6, 2025

White Mountains to Sell Bamboo to CVC
HAMILTON, Bermuda , Oct. 3, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that it has signed a definitive agreement to sell a controlling interest in Bamboo, a data-enabled insurance distribution platform providing homeowners' insurance and related products to the residential property market in California and Texas, to funds advised by CVC Capital Partners ("CVC").
PRNewsWire • Oct 3, 2025

Bamboo Pioneers MGA-Sponsored Sidecar Expansion with Accredited to Launch E&S Signature in Texas
MIDVALE, Utah , Sept. 30, 2025 /PRNewswire/ -- Bamboo Ide8 Insurance Services, LLC.
PRNewsWire • Sep 30, 2025

LIAM CAFFREY TO BECOME CEO OF WHITE MOUNTAINS IN 2026
HAMILTON, Bermuda , Sept. 2, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd.
PRNewsWire • Sep 2, 2025

White Mountains (WTM) Q2 Revenue Up 74%
White Mountains (WTM) Q2 Revenue Up 74%
The Motley Fool • Aug 7, 2025

¹ Disclosures

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