White Mountains Insurance Group, Ltd.

WTM Financial Insurance Property & Casualty

White Mountains Insurance Group, Ltd.’s revenue for fiscal 2025 (year ended December 2025) was $3.7 billion, up 66.8% from fiscal 2024. In the quarter to June 2026, revenue grew 22.6%, EPS grew 68.8%, free cash flow fell 131.3% and total debt rose 34.2%, each against the same quarter a year earlier. Dividend growth for ten consecutive years, revenue growth for three.

2,159.73 16.00 +0.75%
Market cap
$5.1B
P/E
4.9×
Fwd P/E
5.1×
Dividend yield
0.05%
F-score
6/9
Altman Z
n/a
Beneish M
n/a
Dividend safety
n/a

Insider Decisions trades per month

Total sells 20.84
Totals in millions of $.
Dec 25 Mar 26 Jun 26 Sep 26
Buy — — — — — — — — — — — —
Sell — 3 — — — — — — — — — —
Insider Ownership 4.07%

Capital & Financial Ratios $m

Market Cap 5,120.00
Revenue 3,830.40
Net Income 1,180.30
Free Cash Flow 388.20
Net Debt 805.00
Current Ratio 0.56
Debt/Equity 0.15
P/E ratio 4.92
Fwd P/E 5.11
P/S ratio 1.36
P/B ratio 0.85
Past 5Y EPS Growth 13.64%
This Y EPS Growth (75.31%) (below 0%: weak)
Next Y EPS Growth 22.41% (at or above 15%: strong)
Next Y revenue growth 22.57% (at or above 10%: strong)
Next 5Y EPS Growth 13.13%

Green and red mark values outside typical ranges. How we judge →

Valuation vs history

P/E against its own 10 years 15.96%
10-year low 10-year high
P/S against its own 10 years 2.76%
10-year low 10-year high
P/B against its own 10 years 12.02%
10-year low 10-year high

Dividends

Payout Ratio 0.00
Annual Dividend Rate 1.00
Annual Dividend Yield 0.05%
total individual payouts
2026 1.00
1.00
2025 1.00
1.00
2024 1.00
1.00
2023 1.00
1.00
2022 1.00
1.00
2021 1.00
1.00
2020 1.00
1.00
2019 1.00
1.00
2018 1.00
1.00
2017 1.00
1.00
2016 1.00
1.00
special payouts not included in total or ratios

Assets vs Liabilities $m

2023 2024 2025 Q'26
Cash 122 191 185 128
Receivables 1,060 1,362 1,742 3,026
Inventory — — — —
Other — — — —
1,182 1,553 1,927 3,153
2023 2024 2025 Q'26
Payables 2,756 3,469 4,226 5,629
ST’ Debt — — — —
Other — — — —
2,843 3,548 4,329 5,629

Compound Annual Growth %

10y 5y 3y
Sales 23.85% 33.06% 47.75%
Cash Flow 11.68% 0.00% 14.68%
Earnings 14.12% 9.32% 11.75%
Book Value 3.44% 9.91% 15.88%

Revenue $m

Mar Jun Sep Dec Year
’26 518 845 — — —
’25 578 689 864 1,604 3,735
’24 647 395 839 358 2,240
’23 532 378 520 737 2,167
’22 260 77 383 438 1,158
’21 178 342 (92) 186 614
’20 (59) 260 460 236 896
Fiscal quarters ending in the months shown.

Operating Cash Flow $m

Mar Jun Sep Dec Year
’26 31 (55) — — —
’25 (40) 178 359 54 551
’24 37 217 269 64 587
’23 86 71 223 25 404
’22 (41) 81 117 208 365
’21 (93) 107 32 (7) 39
’20 (60) 21 51 (73) (61)
Fiscal quarters ending in the months shown.

Free Cash Flow $m

Mar Jun Sep Dec Year
’26 31 (55) — — —
’25 (40) 178 359 54 551
’24 37 217 269 64 587
’23 86 71 223 25 404
’22 (41) 81 117 208 365
’21 (93) 107 32 (7) 39
’20 (60) 21 51 (73) (61)
Fiscal quarters ending in the months shown.

EPS $

Mar Jun Sep Dec Year
’26 (12.59) 80.58 — — —
’25 13.19 47.75 44.18 327.23 430.14
’24 92.33 (21.24) 69.68 (50.78) 89.79
’23 69.83 7.65 9.19 111.87 198.60
’22 11.10 (56.80) 306.93 15.69 276.96
’21 (24.30) 44.56 (120.18) 10.87 (89.46)
’20 (40.54) 37.14 75.09 157.70 226.97
Fiscal quarters ending in the months shown.

Target Price Range

Analyst price targets

Recommendation Rating

3
1Buy 2 3Hold 4 5Sell

Ten years at a glance Fiscal years to December

Group Line 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Trend 2026e 2027e 2028e
Price, $
Price, $ Low 689.31 834.20 786.23 850.75 629.21 978.51 982.60 1,312.00 1,475.00 1,648.00

Analyst estimates 2026–2028

Powerpack
High 874.69 948.94 980.89 1,131.50 1,168.21 1,267.52 1,435.45 1,617.00 2,023.00 2,143.25
People
People Employees 1,400 276 1,058 1,262 1,366 1,648 803 782 893 1,648
Revenue/emp, $m 0.11 1.35 0.35 0.71 0.66 0.37 1.44 2.77 2.51 2.27
Income, $m
Income, $m Revenue 158 374 369 893 896 614 1,158 2,167 2,240 3,735
Gross margin, % 26.44 61.21 23.38 86.72 97.96 7.16 23.52 51.20 43.76 60.47
EBT (147) 8 (178) 405 660 (274) (149) 565 317 1,329
EBT margin, % (93.41) 2.09 (48.28) 45.34 73.74 (44.53) (12.90) 26.09 14.14 35.57
Net income 409 593 (191) 377 663 (322) 712 581 284 1,202
Depreciation 39 37 39 40 26 36 18 (2) 10 28
Per share, $
Per share, $ Revenue 31.86 88.18 110.44 284.43 290.68 201.91 409.73 857.32 884.53 1,473.78
Earnings 82.24 146.06 (41.76) 130.27 226.97 (89.46) 276.96 198.60 89.79 430.14
Cash flow (31.33) 22.32 (9.31) (38.36) (19.67) 12.68 129.16 159.89 231.74 217.22
Capex 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Free cash flow (31.33) 22.32 (9.31) (38.36) (19.67) 12.68 129.16 159.89 231.74 217.22
Book value 750.71 792.83 813.35 1,001.18 1,239.18 1,217.45 1,392.43 1,804.93 2,026.30 2,416.29
Shares, m 5 4 3 3 3 3 3 3 3 3
Valuation, ×
Valuation, × P/E 10.51 5.74 0.00 8.55 4.36 0.00 5.04 7.61 21.61 4.81
P/S 5.21 9.62 7.77 3.92 3.44 5.02 3.41 1.76 2.20 1.41
P/B 1.04 1.07 1.05 1.11 0.81 0.83 1.00 0.84 0.96 0.86
EV/Sales 5.12 9.42 7.99 4.06 2.91 5.47 3.69 1.97 2.36 1.58
EV/FCF (21.90) 37.62 (91.86) (29.85) (42.24) 89.32 11.72 10.56 9.04 10.77
Cash, $m
Cash, $m Operating cash flow (155) 95 (31) (120) (61) 39 365 404 587 551
Capex — — — — — — — — — —
Free cash flow (155) 95 (31) (120) (61) 39 365 404 587 551
Balance, $m
Balance, $m Working capital (74) (43) (115) (130) 494 (1,135) (1,182) (1,661) (1,995) (2,402)
Total debt 13 24 193 284 376 421 575 565 563 837
Net debt (67) (73) 82 123 (481) 273 320 442 372 652
Shareholders’ equity 3,716 3,361 2,718 3,145 3,818 3,705 3,935 4,562 5,131 6,124
Returns, %
Returns, % ROA 4.78 12.32 (4.02) 11.29 16.08 (4.66) 11.02 6.46 2.52 9.95
ROIC (2.47) 0.19 (3.88) 7.80 12.40 (4.19) (1.91) 7.72 4.32 13.88
ROE 9.94 17.73 (4.65) 14.14 20.36 (7.32) 20.75 11.99 4.75 19.66
Negative figures in brackets.

All 10 years →

Fiscal years to Dec 2025 · latest quarter Jun 2026

Charts ten years each

White Mountains Insurance Group, Ltd. vs peers in Insurance Property & Casualty (Q) = latest quarter vs a year earlier

Company Market cap P/E Fwd P/E Revenue growth (Q) EPS growth (Q) FCF growth (Q) Gross margin (Q) EBIT margin (Q) Compare
KNSL Kinsale Capital Group, Inc. $8.1B 14.7× 15.2× +16.75% (above 0%: growing) +33.51% (above 0%: growing) −5.14% (below 0%: shrinking) 40.91% 40.68% Compare
THG The Hanover Insurance Group, Inc. $8.0B 11.0× 10.4× +4.34% (above 0%: growing) +27.21% (above 0%: growing) +2.20% (above 0%: growing) 44.24% 14.75% Compare
MCY Mercury General Corporation $5.6B 6.1× 8.7× +13.80% (above 0%: growing) +58.14% (above 0%: growing) −45.52% (below 0%: shrinking) 27.24% 19.93% Compare
RLI RLI Corp. $5.5B 12.8× 19.5× +15.15% (above 0%: growing) +35.82% (above 0%: growing) −17.87% (below 0%: shrinking) 43.61% 36.86% Compare
HGTY Hagerty, Inc. $5.3B 95.6× — (loss-making) −6.46% (below 0%: shrinking) n/m +238.74% (above 0%: growing) 100.00% 18.38% Compare
SIGI Selective Insurance Group, Inc. $5.2B 11.1× 11.4× +4.54% (above 0%: growing) +55.15% (above 0%: growing) +34.56% (above 0%: growing) 41.15% 12.69% Compare
WTM White Mountains Insurance Group, Ltd. $5.1B 4.9× 5.1× +22.55% (above 0%: growing) +68.75% (above 0%: growing) −131.27% (below 0%: shrinking) 54.44% 32.51%
PLMR Palomar Holdings, Inc. $3.6B 18.2× 13.7× +54.65% (above 0%: growing) +14.94% (above 0%: growing) +38.21% (above 0%: growing) 23.77% 23.77% Compare
LMND Lemonade, Inc. $3.6B — (loss-making) — (loss-making) +79.40% (above 0%: growing) n/m −335.29% (below 0%: shrinking) 47.69% (14.20%) Compare
Median of peers $5.4B 12.8× 12.6× +14.48% +34.67% −1.47% 42.38% 19.16%

All 45 Insurance Property & Casualty stocks →

White Mountains Insurance Group, Ltd. (WTM) key facts

  • Strength: White Mountains Insurance Group, Ltd.’s revenue for fiscal 2025 (year ended December 2025) was $3.7 billion, up 66.8% from fiscal 2024.
  • White Mountains Insurance Group, Ltd. (WTM) is an Insurance Property & Casualty company in the Financial sector, listed on the New York Stock Exchange.
  • As of October 16, 2026, WTM traded at $2,159.73, a market capitalization of $5.1 billion.
  • White Mountains Insurance Group, Ltd. pays an annual dividend of $1.00 per share, a yield of 0.05%, with a payout ratio of 0.23%.
  • Return on equity was 19.7% and debt-to-equity 0.15.
  • Its Piotroski F-score is 6 out of 9 for fiscal 2025.

Source: company filings (standardised) and stockrow calculations.

White Mountains Insurance Group, Ltd. (WTM) Latest News

stockrow.com/WTM · Data as of Jun 30, 2026 · For information only; not investment advice. · © 2026 stockrow.com