WHITE MOUNTAINS INSURANCE GROUP LTD

WTM

WHITE MOUNTAINS INSURANCE GROUP LTD

WTM

Insider Sentiment (TTM):

Last Purchase:2023-11-17Last Sale:2025-12-19Shares Purchased (TTM):0Shares Sold (TTM):10,165

Institutional Sentiment:

As of:2026-03-31Institutional Shares Owned:2,101,086Shares Outstanding:2,447,300Institutional Ownership Pct.:85.85%

Earnings Market Reaction:

Filing Date:2026-08-06Price on Filing Date:N/APrevious Close:N/A% Change:N/A

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Financial Statements

10‑Q10‑K

Values in Millions ($)	2026-06-30	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30	2024-03-31	2023-12-31	2023-09-30
Kudu Investment Management L L C Segment	-	21	22	-18	30	12	28	-17	18	20	29	17
Bamboo Insurance Services L L C Segment	-	-	-	-	-	-	41	-	-	-	0	-
Bamboo Captive Segment	-	-	-	-	-	-	1	-	-	-	0	-
Bamboo Ide8 Insurance Services L L C Segment	-	-	-	231	-6	45	-	6	9	25	-	-
H G Global B A M Segment	-	705	693	16	168	503	612	249	-628	1,016	1,012	932
Corporate Non Segment	-	311	159	-10	-123	293	294	19	-1	267	230	271
Bamboo C R V	-	-	-	-	-	-	32	-	-	-	0	-
Assets
Investments
Investments	8,134	8,353	8,324	6,999	6,799	6,551	6,418	-	-	-	6,389	-
Bamboo Group	-	-	0	662	-	-	586	-	-	-	-	-
Other Disposal Group	-	5	5	6	-	-	7	-	-	-	-	-
Equity Securities Fv Ni Current And Noncurrent	577	547	483	438	435	542	650	655	631	562	538	637
Other Long Term Investments	3,316	3,254	2,959	2,589	2,307	2,288	2,150	2,071	2,022	1,992	1,998	1,896
Intangible Assets Net Including Goodwill	1,184	1,012	1,020	1,393	805	715	720	726	731	737	371	372
Assets	13,767	13,169	12,307	12,346	11,823	11,005	9,926	10,338	10,167	9,590	8,386	8,143
Liabilities
Liabilities	7,515	6,993	6,051	6,629	6,483	5,865	4,795	5,078	5,295	4,700	3,824	3,979
Long Term Debt	933	835	837	870	695	676	563	545	530	532	565	565
Redeemable Noncontrolling Interest Equity Carrying…	132	132	132	132	-	-	0	-	-	-	-	-
Stockholders Equity Inclu…
Common Stock Value	2	3	3	3	3	3	3	3	3	3	3	3
Additional Paid In Capital	564	579	577	582	574	565	564	561	559	552	549	545
Retained Earnings Accumulated Deficit	4,821	4,791	4,846	4,183	4,068	3,943	3,919	4,048	3,863	3,918	3,691	3,404
Accumulated Other Compreh…
Stockholders Equity
Stockholders Equity	6,121	5,374	6,124	4,768	5,340	5,140	4,484	4,611	4,423	4,470	4,562	3,949
Accumulated Other Comprehensive Income Loss Foreig…	1	1	1	0	0	-1	-2	-1	-2	-2	-2	-3
Minority Interest	732	671	698	817	696	630	647	649	450	420	321	215
Restricted Cash And Cash Equivalents At Carrying V…	-	-	-	-	-	-	-	-	-	-	1	-
Liabilities And Stockholders Equity	13,767	13,169	12,307	12,346	11,823	11,005	9,926	10,338	10,167	9,590	8,386	8,143
Ark Insurance Holdings Limited W M Outrigger Re Se…	-	1,870	1,918	79	-18	1,773	1,565	194	92	1,340	867	161
Distinguished Partners Segment	-	66	94	63	-	-	0	-	-	-	-	-
Operating Segments	-	1,870	1,918	79	1,253	503	1,565	1,074	-560	947	867	932
Common Stock Par Or Stated Value Per Share	1	1	1	1	1	1	1	1	1	1	1	1
Common Stock Shares Authorized	50	50	50	50	50	50	50	50	50	50	50	50
Common Stock Shares Issued	2	2	2	3	3	3	3	3	3	3	3	3
Shares Outstanding	2	2	2	3	3	3	3	3	3	3	3	3

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10‑Q10‑K

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Earnings Market Reaction

10‑Q10‑K

Fiscal Year	Q1 1 Month	Q1 2 Month	Q1 3 Month	Q2 1 Month	Q2 2 Month	Q2 3 Month	Q3 1 Month	Q3 2 Month	Q3 3 Month	Q4 1 Month	Q4 2 Month	Q4 3 Month
2026	-0.73%	0.80%	6.16%	-	-	-	-	-	-	-	-	-
2025	-0.07%	-0.12%	0.20%	4.56%	-1.97%	9.47%	6.99%	9.00%	8.70%	-2.91%	4.50%	-3.73%
2024	-3.07%	-2.51%	-6.12%	7.08%	-1.23%	5.44%	6.59%	1.75%	1.11%	1.30%	-5.58%	-2.00%
2023	-	-	-	2.59%	-3.61%	-8.14%	5.12%	3.65%	9.97%	-0.14%	0.52%	-0.97%
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Performance and Valuation Metrics

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Metrics	2026-06-30	2026-03-31	2025-12-31	2025-09-30	2025-06-30	2025-03-31	2024-12-31	2024-09-30	2024-06-30	2024-03-31	2023-12-31	2023-09-30
Leverage & Debt
Interest Coverage TTM	13.30	12.67	14.17	4.04	4.01	1.70	4.25	11.25	9.04	10.15	9.75	4.31
Per Share Metrics
Diluted EPS TTM	453.98	415.31	436.57	80.08	86.92	22.35	90.99	258.78	197.49	220.62	201.48	122.95
Free Cash Flow Per Share TTM	45.44	111.02	79.31	85.95	157.43	200.76	140.19	124.53	106.21	48.67	159.89	232.95
Dividend Per Share TTM	1.00	0.98	1.03	1.02	1.02	1.02	0.99	0.99	0.99	0.99	1.03	1.03
Margin Metrics
Gross Profit Margin TTM	94.13%	94.91%	95.94%	95.48%	97.37%	98.64%	98.68%	98.89%	98.72%	98.51%	98.14%	96.61%
Operating Profit Margin TTM	34.21%	33.49%	35.57%	12.33%	14.92%	7.21%	14.14%	29.22%	23.78%	26.24%	26.09%	19.63%
Net Profit Margin TTM	28.53%	27.66%	29.62%	8.18%	8.96%	2.62%	10.29%	25.03%	21.75%	24.47%	23.50%	16.61%
Growth Metrics
Net Revenue Growth (1Y)	55.45%	69.33%	66.76%	-4.94%	7.18%	-4.90%	3.37%	40.22%	32.81%	59.65%	87.12%	106.01%
Net Income Growth (1Y)	394.79%	1,689.44%	380.21%	-68.94%	-55.82%	-89.83%	-54.75%	111.28%	-57.44%	-43.50%	-35.77%	-60.16%
EPS Growth (1Y)	422.29%	1,757.88%	379.81%	-69.05%	-55.99%	-89.87%	-54.84%	110.47%	-57.56%	-43.33%	-28.18%	-54.91%
Valuation Metrics
P/E TTM	4.57	5.29	4.76	20.86	20.65	86.11	21.36	6.55	9.19	8.13	7.46	12.15
P/B TTM	0.82	0.89	0.86	0.76	0.85	0.95	0.96	0.82	0.94	0.93	0.83	0.90
P/S TTM	1.30	1.46	1.41	1.71	1.85	2.25	2.20	1.64	2.00	1.99	1.75	2.02
Market Cap	4.99B	5.38B	5.26B	4.25B	4.56B	4.89B	4.92B	4.29B	4.60B	4.54B	3.80B	3.77B
Enterprise Value	5.80B	6.07B	5.92B	4.64B	4.92B	5.26B	5.22B	4.49B	4.87B	4.84B	4.24B	4.17B
Calculated Values
Free Cash Flow TTM	109.40M	271.70M	201.00M	218.50M	400.10M	510.10M	355.00M	315.40M	268.90M	123.20M	404.10M	587.70M
Net Debt	804.70M	697.80M	651.40M	396.20M	356.80M	364.10M	296.10M	198.90M	275.00M	306.80M	442.20M	401.90M
Per-Share and Margin
EPS TTM
Adjusted EPS TTM
Cash Flow Per Share TTM
Pretax Margin TTM
Stock Comp to Revenue TTM
Turnover Ratios and Averages
Average Assets
Average Equity
Average Inventory
Average Receivables
Average Accounts Payables
Inventory Turnover TTM
Payables Turnover TTM
Days Inventory Outstanding TTM
Days Payables Outstanding TTM
Cash Conversion Cycle TTM
Working Capital to Revenue
Deferred Revenue to Revenue
Growth Rates
Total Assets Growth (1Y)
Total Assets Growth (3Y)
Total Assets Growth (5Y)
Dividends Paid Growth (1Y)
Dividends Paid Growth (3Y)
Dividends Paid Growth (5Y)
EPS Growth (3Y)
EPS Growth (5Y)
Net Income Growth (3Y)
Net Income Growth (5Y)
Net Profit Margin Growth (1Y)
Net Profit Margin Growth (3Y)
Net Profit Margin Growth (5Y)
Net Revenue Growth (3Y)
Net Revenue Growth (5Y)
Deferred Revenue Growth (1Y)
Retained Earnings Growth (1Y)
Credit, Liquidity, Returns, Payout
Cash Ratio
Net Working Capital
Debt to EBITDA TTM
Net Debt to EBITDA TTM
Net Debt to Equity
Altman A
Altman B
Altman C
Altman D
Altman E
Altman Z-Score
ROA TTM
ROE TTM
NOPAT TTM
ROIC TTM
Effective Tax Rate TTM
Payout Ratio TTM
Dilution Ratio
Retained Earnings to Equity
Treasury Stock to Equity
Treasury Stock Change (1Y)
Accrued to Current Liabilities
NCAV
NCAV Per Share TTM
Valuation Ratios
P/CF TTM
Dividend Yield TTM
Free Cash Flow Yield TTM
EV EBITDA TTM
EV EBIT TTM
Stock Compensation TTM
Adjusted Net Income TTM
Billings TTM
Total Debt
Invested Capital

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Insider Transactions

2025-12-19Sale

Owner: Campbell, Reid Tarlton

Title: -

Shares: 5,000

Price/Share: $2050.00

Value: $10,250,000.00

Shares Owned: 10,440

Relationship: Director

Ownership: Direct

2025-12-19Sale

Owner: Rountree, George Manning

Title: Chief Executive Officer

Shares: 5,000

Price/Share: $2050.00

Value: $10,250,000.00

Shares Owned: 13,809

Relationship: Director,Officer

Ownership: Direct

2025-12-16Sale

Owner: Gelston, Philip A

Title: -

Shares: 165

Price/Share: $2048.51

Value: $338,004.15

Shares Owned: 1,568

Relationship: Director

Ownership: Direct

2023-11-17Purchase

Owner: Hicks, Weston M

Title: -

Shares: 1,000

Price/Share: $1480.23

Value: $1,480,230.00

Shares Owned: 2,306

Relationship: Director

Ownership: Direct

2022-12-22Sale

Owner: Hildreth, Michaela

Title: MD & Chief Accounting Officer

Shares: 100

Price/Share: $1371.84

Value: $137,184.00

Shares Owned: 1,463

Relationship: Officer

Ownership: Direct

Filed Date	Owner	Relationship	Title	Ownership	Purchase/Sale	No. Shares	Price Per Share	Value	Shares Owned	Document Type
2025-12-19	Campbell, Reid Tarlton	Director	-	Direct	Sale	5,000	2050.00	$10,250,000.00	10,440	4/A
2025-12-19	Rountree, George Manning	Director,Officer	Chief Executive Officer	Direct	Sale	5,000	2050.00	$10,250,000.00	13,809	4
2025-12-16	Gelston, Philip A	Director	-	Direct	Sale	165	2048.51	$338,004.15	1,568	4
2023-11-17	Hicks, Weston M	Director	-	Direct	Purchase	1,000	1480.23	$1,480,230.00	2,306	4/A
2022-12-22	Hildreth, Michaela	Officer	MD & Chief Accounting Officer	Direct	Sale	100	1371.84	$137,184.00	1,463	4
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Institutional Ownership

No data available for chart

2026-03-31

85.85%

Inst. Shares: 2,101,086

Shares Outstanding: 2,447,300

2025-12-31

84.55%

Inst. Shares: 2,142,786

Shares Outstanding: 2,534,300

2025-09-30

86.53%

Inst. Shares: 2,199,767

Shares Outstanding: 2,542,300

2025-06-30

85.50%

Inst. Shares: 2,172,981

Shares Outstanding: 2,541,400

2025-03-31

83.31%

Inst. Shares: 2,116,807

Shares Outstanding: 2,540,900

Date	Institutional Shares Owned	Shares Outstanding	Institutional Ownership %
2026-03-31	2,101,086	2,447,300	85.85%
2025-12-31	2,142,786	2,534,300	84.55%
2025-09-30	2,199,767	2,542,300	86.53%
2025-06-30	2,172,981	2,541,400	85.50%
2025-03-31	2,116,807	2,540,900	83.31%
2024-12-31	2,111,980	2,532,200	83.40%
2024-09-30	2,036,427	2,532,700	80.41%
2024-06-30	2,121,443	2,531,800	83.79%
2024-03-31	2,074,235	2,531,100	81.95%
2023-12-31	2,080,206	2,527,300	82.31%
2023-09-30	2,093,785	2,522,900	82.99%
2023-06-30	2,101,695	2,524,800	83.24%
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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. Based on its latest SEC filing (Form 10-Q, period ending 2026-06-30), WHITE MOUNTAINS INSURANCE GROUP LTD reported a 55.45% year-over-year revenue growth, a Gross Profit Margin of 94.13% (TTM), a Price-to-Sales (P/S) ratio of 1.30x (TTM), a Price-to-Book (P/B) ratio of 0.82x (TTM), at a market cap of $4.99B. Figures below are sourced from SEC EDGAR, as-filed.

Net Revenue TTM Growth 1Y: 55.45%
Gross Profit Margin TTM: 94.13%
P/S TTM: 1.30x
P/B TTM: 0.82x
Market Cap: $4.99B

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 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 4.57x as of 2026-06-30.

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.