WTM

WHITE MOUNTAINS INSURANCE GROUP LTD
—

Company Information

Company Name
WHITE MOUNTAINS INSURANCE GROUP LTD
CIK
CIK0000776867
Category
Large accelerated filer
Ticker: Exchange
WTM: NYSE
Fiscal Year End
December 31
Owner Organization
02 Finance
SIC
6331
SIC Description
Fire, Marine & Casualty Insurance
Ticker
WTM

SEC filing data through

Insider Sentiment

Last purchase
2023-11-17
Last sale
2025-12-19
Shares purchased (TTM)
0
Shares sold (TTM)
10,165
Buy ratio (TTM)0.0%

Institutional Sentiment

As of
2026-06-30
Institutional shares owned
2,124,449
Shares outstanding
2,407,600
Ownership
88.24%
+2.74% Y/Y

Earnings Market Reaction

Filing date
2026-08-06
Price on filing date
—
1-month reaction
-0.27%
3-month reaction
…
Drift continued6/11 (55%)
Faded / reversed5/11 (45%)

Balance Sheet

Values in millions ($)
Line item2026-06-302026-03-312025-12-312025-09-302025-06-302025-03-312024-12-312024-09-302024-06-302024-03-312023-12-312023-09-30Subscriber-only columnSubscriber-only columnSubscriber-only columnSubscriber-only columnSubscriber-only columnTrend
Kudu Investment Management L L C Segment942122-18301228-1718202917
Bamboo Ide8 Insurance Services L L C Segment---231-645-6925--
H G Global B A M Segment-70569316168503612249-6281,0161,012932
H G Global Segment715---506-------
W T M Partners L L C Segment1-----------
Corporate Non Segment2311159-10-12329329419-1267230271
Bamboo Group--0662--586-----
Other Disposal Group1556--7-----
Equity Securities Fv Ni Current And Noncurrent577547483438435542650655631562538637
Other Long Term Investments3,3163,2542,9592,5892,3072,2882,1502,0712,0221,9921,9981,896
Intangible Assets Net Including Goodwill1,1841,0121,0201,393805715720726731737371372
Assets13,76713,16912,30712,34611,82311,0059,92610,33810,1679,5908,3868,143
Liabilities
Liabilities7,5156,9936,0516,6296,4835,8654,7955,0785,2954,7003,8243,979
Long Term Debt933835837870695676563545530532565565
Redeemable Noncontrolling Interest Equity Carrying Amount132132132132--0-----
Stockholders Equity Including Portion Attributable To Noncontrolling Interest
Investments8,1348,3538,3246,9996,7996,5516,418---6,389-
Common Stock Value233333333333
Additional Paid In Capital564579577582574565564561559552549545
Retained Earnings Accumulated Deficit4,8214,7914,8464,1834,0683,9433,9194,0483,8633,9183,6913,404
Stockholders Equity
Stockholders Equity6,1215,3746,1244,7684,6454,5105,1314,6114,4234,4704,5624,164
Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax11100-1-2-1-2-2-2-3
Minority Interest732671698817696630647649450420321215
Restricted Cash And Cash Equivalents At Carrying Value----------1-
Liabilities And Stockholders Equity13,76713,16912,30712,34611,82311,0059,92610,33810,1679,5908,3868,143
Ark Insurance Holdings Limited W M Outrigger Re Segment1421,8701,91815471,7731,565194921,340867161
Distinguished Partners Segment13669463--0-----
Bamboo Insurance Services L L C Segment------41---0-
Operating Segments1421,8701,9181,32485031,5651,074-560947867932
Bamboo Captive Segment------1---0-
Bamboo C R V------32---0-
Assets
Common Stock Par Or Stated Value Per Share1.001.001.001.001.001.001.001.001.001.001.001.00
Common Stock Shares Authorized505050505050505050505050
Common Stock Shares Issued222333333333
Shares Outstanding222333333333

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WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) — SEC Financial Statements & Analysis

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) is a fire, marine & casualty insurance company, incorporated in D0. WHITE MOUNTAINS INSURANCE GROUP LTD trades on NYSE as: WTM. WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s most recent SEC filing is a Form 10-Q for the period ended 2026-06-30, filed with the SEC on 2026-08-06. Based on that filing, WHITE MOUNTAINS INSURANCE GROUP LTD carries a market cap of $4.99B, a P/E ratio of 4.00x, a P/B ratio of 0.82x, a P/S ratio of 1.61x, an enterprise value of $5.80B, and an EV/EBITDA multiple of 3.91x. On profitability, it posts a gross margin of 92.74%, an operating margin of 42.36%, a net margin of 40.38%, a Return on Equity (ROE) of 21.80%, and a Return on Invested Capital (ROIC) of 20.68%. Per share, it reports EPS of $518.77, diluted EPS of $518.77, free cash flow per share of $-29.86, and a dividend per share of $1.00. Over the trailing year, it posted revenue growth of 68.92% year-over-year, net income growth of 379.83% year-over-year, and EPS growth of 406.50% year-over-year. On the balance sheet, it maintains an interest coverage ratio of 18.00x, free cash flow of $-71.90M (TTM), and net debt of $804.70M. Figures sourced from SEC EDGAR.

Market Cap
$4.99B
P/E TTM
4.00x
EPS TTM
$518.77
P/B TTM
0.82x
ROE TTM
21.80%
Free Cash Flow TTM
$-71.90M
Net Revenue TTM Growth 1Y
68.92%

Data as of 2026-06-30 · Source: SEC EDGAR

Frequently Asked Questions

What industry is WHITE MOUNTAINS INSURANCE GROUP LTD in?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) operates in the Fire, Marine & Casualty Insurance industry.

What exchange does WTM trade on?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) trades on the NYSE.

Where is WHITE MOUNTAINS INSURANCE GROUP LTD incorporated?

WHITE MOUNTAINS INSURANCE GROUP LTD is incorporated in Bermuda.

When was WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s most recent SEC filing?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s most recent SEC filing is a Form 10-Q for the period ended 2026-06-30, filed with the SEC on 2026-08-06.

What is WTM's market cap?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) has a market capitalization of $4.99B as of 2026-06-30.

What is WTM's P/E ratio?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s trailing twelve month P/E ratio is 4.00x as of 2026-06-30.

What is WTM's EPS (earnings per share)?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s trailing twelve month EPS is $518.77 as of 2026-06-30.

What is WTM's ROE (return on equity)?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s trailing twelve month Return on Equity (ROE) is 21.80% as of 2026-06-30.

What is WTM's ROIC (return on invested capital)?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s trailing twelve month Return on Invested Capital (ROIC) is 20.68% as of 2026-06-30.

What is WTM's EV/EBITDA?

WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)'s trailing twelve month EV/EBITDA is 3.91x as of 2026-06-30.

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