White Mountains Insurance Group Balance Sheet 2011-2026 | WTM
Fifteen years of historical annual and quarterly balance sheets for White Mountains Insurance Group (WTM).
Annual Data | Millions of US $ except per share data
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 |
| $185 | $266 | $122 | $255 | $148 | $858 | $161 | $110 | $97.10 | $80.20 | $173 | $262 | $383 | $462 | $705 |
| $1,742 | $1,447 | $1,060 | $1,146 | $871 | $83.60 | $86.50 | $87.40 | $57.80 | $24.80 | $456 | $453 | $985 | $1,007 | $3,032 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $1,927 | $1,714 | $1,182 | $1,401 | $1,019 | $941 | $248 | $198 | $155 | $105 | $629 | $715 | $1,367 | $1,470 | $3,737 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $8,688 | $6,877 | $6,406 | $5,182 | $4,274 | $2,949 | $2,964 | $2,553 | $3,398 | $2,729 | $4,285 | $4,171 | $7,553 | $7,712 | $8,595 |
| $1,020 | $720 | $371 | $392 | $341 | $782 | $655 | $538 | $62.10 | $45.20 | $55.40 | $351 | $20.70 | $0 | $0 |
| $364 | $363 | $242 | $250 | $1,226 | $131 | $94.80 | $55.10 | $29.40 | $3,630 | $5,093 | $4,997 | $2,516 | $2,949 | $1,008 |
| $10,380 | $8,212 | $7,204 | $5,988 | $5,982 | $3,890 | $3,736 | $3,165 | $3,504 | $6,415 | $9,654 | $9,741 | $10,777 | $11,426 | $10,327 |
| $12,307 | $9,926 | $8,386 | $7,389 | $7,001 | $4,831 | $3,983 | $3,363 | $3,659 | $6,520 | $10,283 | $10,456 | $12,144 | $12,895 | $14,064 |
| $4,329 | $3,685 | $2,843 | $2,583 | $2,154 | $447 | $378 | $313 | $198 | $179 | $2,279 | $2,191 | $4,419 | $4,424 | $6,949 |
| $837 | $563 | $565 | $575 | $421 | $376 | $284 | $193 | $23.80 | $12.70 | $338 | $343 | $676 | $751 | $678 |
| $886 | $547 | $416 | $296 | $721 | $190 | $178 | $139 | $76.60 | $2,613 | $3,298 | $3,384 | $2,296 | $3,121 | $1,404 |
| $1,854 | $1,109 | $981 | $871 | $1,142 | $567 | $461 | $332 | $100 | $2,626 | $3,636 | $3,727 | $3,328 | $4,214 | $2,447 |
| $6,183 | $4,795 | $3,824 | $3,454 | $3,296 | $1,014 | $839 | $644 | $298 | $2,804 | $5,915 | $5,917 | $7,747 | $8,637 | $9,396 |
| $2.50 | $2.60 | $2.60 | $2.60 | $3.00 | $3.10 | $3.20 | $3.20 | $3.80 | $4.60 | $5.60 | $6.00 | $6.20 | $6.30 | $7.60 |
| $4,846 | $3,919 | $3,691 | $3,212 | $2,958 | $3,311 | $2,672 | $2,265 | $2,823 | $2,777 | $3,085 | $3,011 | $2,802 | $2,543 | $2,790 |
| $0.80 | $-1.70 | $-1.60 | $-3.50 | $1.70 | $-0.40 | $-7.20 | $-5.80 | $-1.30 | $-4.60 | $-149.90 | $-49.50 | $52.10 | $132 | $36.70 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $6,124 | $5,131 | $4,562 | $3,935 | $3,705 | $3,818 | $3,145 | $2,718 | $3,361 | $3,716 | $4,368 | $4,538 | $4,397 | $4,258 | $4,668 |
| $12,307 | $9,926 | $8,386 | $7,389 | $7,001 | $4,831 | $3,983 | $3,363 | $3,659 | $6,520 | $10,283 | $10,456 | $12,144 | $12,895 | $14,064 |
Quarterly Data | Millions of US $ except per share data
| 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 | 2023-06-30 | 2023-03-31 | 2022-12-31 | 2022-09-30 | 2022-06-30 | 2022-03-31 | 2021-12-31 | 2021-09-30 | 2021-06-30 | 2021-03-31 | 2020-12-31 | 2020-09-30 | 2020-06-30 | 2020-03-31 | 2019-12-31 | 2019-09-30 | 2019-06-30 | 2019-03-31 | 2018-12-31 | 2018-09-30 | 2018-06-30 | 2018-03-31 | 2017-12-31 | 2017-09-30 | 2017-06-30 | 2017-03-31 | 2016-12-31 | 2016-09-30 | 2016-06-30 | 2016-03-31 | 2015-12-31 | 2015-09-30 | 2015-06-30 | 2015-03-31 | 2014-12-31 | 2014-09-30 | 2014-06-30 | 2014-03-31 | 2013-12-31 | 2013-09-30 | 2013-06-30 | 2013-03-31 | 2012-12-31 | 2012-09-30 | 2012-06-30 | 2012-03-31 | 2011-12-31 | 2011-09-30 | 2011-06-30 |
| $136 | $185 | $337 | $338 | $312 | $191 | $346 | $255 | $225 | $122 | $163 | $155 | $203 | $255 | $246 | $383 | $327 | $148 | $311 | $327 | $489 | $858 | $215 | $211 | $136 | $161 | $149 | $150 | $132 | $110 | $112 | $131 | $120 | $97.10 | $48.60 | $53.30 | $125 | $80.20 | $245 | $135 | $179 | $173 | $200 | $354 | $336 | $262 | $544 | $331 | $339 | $383 | $411 | $348 | $412 | $462 | $549 | $812 | $605 | $705 | $558 | $484 |
| $2,540 | $1,742 | $2,124 | $2,558 | $2,283 | $1,362 | $1,822 | $2,125 | $1,746 | $1,060 | $1,326 | $1,753 | $1,487 | $1,146 | $1,256 | $1,300 | $1,277 | $871 | $1,034 | $1,114 | $972 | $83.60 | $130 | $107 | $136 | $86.50 | $60.60 | $145 | $66.60 | $87.40 | $74.80 | $77.50 | $54.60 | $57.80 | $195 | $202 | $430 | $24.80 | $629 | $445 | $406 | $456 | $522 | $1,194 | $1,186 | $453 | $1,175 | $1,247 | $1,195 | $985 | $1,158 | $1,125 | $1,243 | $1,007 | $1,217 | $3,232 | $3,248 | $3,032 | $3,277 | $2,933 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $2,676 | $1,927 | $2,462 | $2,896 | $2,595 | $1,553 | $2,168 | $2,381 | $1,971 | $1,182 | $1,488 | $1,908 | $1,689 | $1,401 | $1,502 | $1,684 | $1,604 | $1,019 | $1,344 | $1,441 | $1,460 | $941 | $344 | $319 | $273 | $248 | $210 | $295 | $199 | $198 | $187 | $209 | $175 | $155 | $243 | $256 | $555 | $105 | $874 | $580 | $585 | $629 | $722 | $1,549 | $1,521 | $715 | $1,718 | $1,578 | $1,534 | $1,367 | $1,569 | $1,474 | $1,655 | $1,470 | $1,766 | $4,044 | $3,854 | $3,737 | $3,835 | $3,417 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $8,723 | $8,688 | $7,419 | $7,219 | $6,964 | $6,817 | $6,789 | $6,454 | $6,350 | $6,406 | $5,878 | $5,646 | $5,454 | $5,182 | $5,167 | $4,037 | $4,148 | $4,274 | $4,213 | $4,239 | $3,875 | $2,949 | $3,119 | $2,789 | $2,698 | $2,964 | $2,857 | $2,684 | $2,816 | $2,553 | $2,689 | $2,608 | $3,311 | $3,398 | $3,296 | $2,709 | $5,366 | $2,729 | $5,232 | $5,537 | $3,653 | $4,285 | $4,116 | $7,254 | $7,388 | $4,171 | $7,423 | $7,625 | $7,624 | $7,553 | $7,423 | $7,323 | $7,401 | $7,712 | $7,705 | $7,616 | $7,964 | $8,595 | $7,717 | $8,014 |
| $1,012 | $1,020 | $1,050 | $805 | $715 | $365 | $726 | $731 | $737 | $371 | $372 | $374 | $376 | $392 | $393 | $398 | $1,052 | $341 | $1,085 | $1,044 | $1,037 | $782 | $776 | $760 | $647 | $655 | $661 | $668 | $510 | $538 | $485 | $493 | $59.20 | $62.10 | $37.80 | $49.50 | $53.00 | $45.20 | $59.30 | $53.30 | $372 | $55.40 | $382 | $356 | $363 | $351 | $0 | $0 | $0 | $20.70 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $361 | $364 | $1,041 | $467 | $365 | $938 | $372 | $315 | $278 | $242 | $187 | $180 | $194 | $250 | $297 | $1,316 | $341 | $1,226 | $312 | $403 | $421 | $131 | $117 | $107 | $99.20 | $94.80 | $87.00 | $85.30 | $85.40 | $55.10 | $43.70 | $41.90 | $26.50 | $29.40 | $46.10 | $3,759 | $307 | $3,630 | $288 | $659 | $5,539 | $5,093 | $4,882 | $633 | $626 | $4,997 | $2,404 | $2,502 | $2,584 | $2,516 | $2,572 | $2,766 | $2,826 | $2,949 | $3,231 | $916 | $838 | $1,008 | $2,396 | $2,170 |
| $10,493 | $10,380 | $9,884 | $8,927 | $8,410 | $8,373 | $8,170 | $7,786 | $7,619 | $7,204 | $6,655 | $6,469 | $6,270 | $5,988 | $6,043 | $5,977 | $5,753 | $5,982 | $5,769 | $5,839 | $5,440 | $3,890 | $4,039 | $3,682 | $3,467 | $3,736 | $3,627 | $3,457 | $3,431 | $3,165 | $3,236 | $3,160 | $3,412 | $3,504 | $3,394 | $6,531 | $5,962 | $6,415 | $5,809 | $6,485 | $9,807 | $9,654 | $9,624 | $8,881 | $8,986 | $9,741 | $10,470 | $10,780 | $10,883 | $10,777 | $10,739 | $10,810 | $10,957 | $11,426 | $11,703 | $9,237 | $9,525 | $10,327 | $10,747 | $10,786 |
| $13,169 | $12,307 | $12,346 | $11,823 | $11,005 | $9,926 | $10,338 | $10,167 | $9,590 | $8,386 | $8,143 | $8,376 | $7,959 | $7,389 | $7,545 | $7,661 | $7,357 | $7,001 | $7,114 | $7,280 | $6,901 | $4,831 | $4,383 | $4,000 | $3,740 | $3,983 | $3,836 | $3,752 | $3,630 | $3,363 | $3,423 | $3,368 | $3,587 | $3,659 | $3,637 | $6,786 | $6,517 | $6,520 | $6,683 | $7,066 | $10,392 | $10,283 | $10,346 | $10,429 | $10,508 | $10,456 | $12,188 | $12,358 | $12,416 | $12,144 | $12,308 | $12,284 | $12,612 | $12,895 | $13,469 | $13,281 | $13,379 | $14,064 | $14,582 | $14,203 |
| $5,288 | $4,329 | $4,795 | $5,108 | $4,652 | $3,548 | $4,042 | $4,338 | $3,729 | $2,843 | $3,099 | $3,414 | $3,014 | $2,583 | $2,799 | $2,803 | $2,681 | $2,154 | $2,424 | $2,448 | $2,278 | $447 | $412 | $394 | $336 | $378 | $364 | $358 | $315 | $313 | $274 | $280 | $210 | $198 | $245 | $288 | $2,296 | $179 | $2,375 | $2,337 | $2,264 | $2,279 | $2,419 | $4,660 | $4,626 | $2,191 | $4,642 | $4,616 | $4,657 | $4,419 | $4,551 | $4,487 | $4,535 | $4,424 | $4,492 | $6,777 | $7,018 | $6,949 | $7,313 | $7,075 |
| $835 | $837 | $766 | $695 | $676 | $563 | $545 | $530 | $532 | $565 | $565 | $566 | $556 | $575 | $616 | $618 | $691 | $421 | $710 | $429 | $430 | $376 | $359 | $350 | $295 | $284 | $230 | $231 | $195 | $193 | $164 | $170 | $21.50 | $23.80 | $9.40 | $10.60 | $285 | $12.70 | $289 | $290 | $533 | $338 | $383 | $749 | $750 | $343 | $678 | $678 | $678 | $676 | $676 | $676 | $676 | $751 | $677 | $678 | $677 | $678 | $669 | $669 |
| $870 | $886 | $1,068 | $680 | $537 | $684 | $490 | $427 | $438 | $416 | $315 | $270 | $296 | $296 | $264 | $748 | $315 | $721 | $325 | $295 | $258 | $190 | $303 | $193 | $150 | $178 | $172 | $156 | $141 | $139 | $145 | $121 | $60.00 | $76.60 | $45.40 | $2,724 | $179 | $2,613 | $219 | $339 | $3,351 | $3,298 | $3,338 | $297 | $339 | $3,384 | $2,066 | $2,119 | $2,201 | $2,296 | $2,464 | $2,613 | $2,781 | $3,121 | $3,522 | $1,124 | $990 | $1,404 | $2,220 | $1,869 |
| $1,836 | $1,854 | $1,966 | $1,375 | $1,213 | $1,247 | $1,035 | $957 | $970 | $981 | $880 | $837 | $852 | $871 | $880 | $1,366 | $1,006 | $1,142 | $1,035 | $724 | $687 | $567 | $663 | $543 | $445 | $461 | $402 | $387 | $337 | $332 | $309 | $290 | $81.50 | $100 | $54.80 | $2,734 | $463 | $2,626 | $507 | $629 | $3,891 | $3,636 | $3,721 | $1,311 | $1,342 | $3,727 | $3,047 | $3,133 | $3,232 | $3,328 | $3,470 | $3,606 | $3,795 | $4,214 | $4,599 | $2,169 | $2,051 | $2,447 | $3,250 | $2,912 |
| $7,124 | $6,183 | $6,761 | $6,483 | $5,865 | $4,795 | $5,078 | $5,295 | $4,700 | $3,824 | $3,979 | $4,250 | $3,866 | $3,454 | $3,679 | $4,169 | $3,687 | $3,296 | $3,459 | $3,172 | $2,965 | $1,014 | $1,074 | $937 | $781 | $839 | $765 | $744 | $651 | $644 | $583 | $571 | $291 | $298 | $300 | $3,022 | $2,759 | $2,804 | $2,882 | $2,966 | $6,155 | $5,915 | $6,140 | $5,971 | $5,968 | $5,917 | $7,690 | $7,749 | $7,889 | $7,747 | $8,020 | $8,093 | $8,330 | $8,637 | $9,090 | $8,946 | $9,069 | $9,396 | $10,563 | $9,987 |
| $2.50 | $2.50 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.60 | $2.90 | $3.00 | $3.00 | $3.00 | $3.10 | $3.10 | $3.10 | $592 | $587 | $589 | $3.20 | $3.20 | $3.20 | $3.20 | $3.20 | $3.20 | $3.20 | $3.80 | $3.80 | $3.70 | $4.60 | $4.60 | $4.60 | $4.60 | $5.00 | $5.40 | $5.60 | $5.70 | $6.00 | $6.00 | $6.00 | $6.00 | $6.20 | $6.20 | $6.20 | $6.20 | $6.20 | $6.20 | $6.30 | $6.60 | $6.60 | $6.60 | $7.60 | $7.60 | $8.00 |
| $4,791 | $4,846 | $4,183 | $4,068 | $3,943 | $3,919 | $4,048 | $3,863 | $3,918 | $3,691 | $3,404 | $3,381 | $3,367 | $3,212 | $3,176 | $2,725 | $2,956 | $2,958 | $2,935 | $3,379 | $3,227 | $3,311 | $2,822 | $2,589 | $2,498 | $2,672 | $2,612 | $2,563 | $2,542 | $2,265 | $2,407 | $2,367 | $2,765 | $2,823 | $2,801 | $2,835 | $2,822 | $2,777 | $2,847 | $3,007 | $2,960 | $3,085 | $2,888 | $3,069 | $3,081 | $3,011 | $2,962 | $2,966 | $2,881 | $2,802 | $2,684 | $2,627 | $2,601 | $2,543 | $2,577 | $2,576 | $2,554 | $2,790 | $2,004 | $2,102 |
| $1.40 | $0.80 | $0 | $0.30 | $-0.50 | $-1.70 | $-1.00 | $-1.80 | $-1.80 | $-1.60 | $-2.70 | $-1.70 | $-2.70 | $-3.50 | $-3.20 | $-5.00 | $-0.40 | $1.70 | $0.20 | $2.40 | $1.30 | $-0.40 | $-6.50 | $-10.30 | $-10.60 | $-7.20 | $-11.30 | $-9.00 | $-6.10 | $-5.80 | $-2.80 | $-2.20 | $-1.30 | $-1.30 | $-1.30 | $-3.00 | $-3.70 | $-4.60 | $-4.30 | $-4.50 | $-112.60 | $-149.90 | $-140.80 | $-125.80 | $-108.20 | $-49.50 | $11.70 | $85.80 | $80.80 | $52.10 | $59.00 | $19.60 | $120 | $132 | $130 | $57.40 | $59.00 | $36.70 | $170 | $197 |
| $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $132 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| $6,045 | $6,124 | $5,585 | $5,340 | $5,140 | $5,131 | $5,260 | $4,872 | $4,891 | $4,562 | $4,164 | $4,126 | $4,093 | $3,935 | $3,866 | $3,492 | $3,669 | $3,705 | $3,654 | $4,108 | $3,936 | $3,818 | $3,309 | $3,063 | $2,959 | $3,145 | $3,071 | $3,008 | $2,978 | $2,718 | $2,840 | $2,798 | $3,296 | $3,361 | $3,337 | $3,764 | $3,758 | $3,716 | $3,801 | $4,099 | $4,237 | $4,368 | $4,206 | $4,459 | $4,540 | $4,538 | $4,499 | $4,609 | $4,528 | $4,397 | $4,287 | $4,190 | $4,282 | $4,258 | $4,378 | $4,335 | $4,310 | $4,668 | $4,019 | $4,216 |
| $13,169 | $12,307 | $12,346 | $11,823 | $11,005 | $9,926 | $10,338 | $10,167 | $9,590 | $8,386 | $8,143 | $8,376 | $7,959 | $7,389 | $7,545 | $7,661 | $7,357 | $7,001 | $7,114 | $7,280 | $6,901 | $4,831 | $4,383 | $4,000 | $3,740 | $3,983 | $3,836 | $3,752 | $3,630 | $3,363 | $3,423 | $3,368 | $3,587 | $3,659 | $3,637 | $6,786 | $6,517 | $6,520 | $6,683 | $7,066 | $10,392 | $10,283 | $10,346 | $10,429 | $10,508 | $10,456 | $12,188 | $12,358 | $12,416 | $12,144 | $12,308 | $12,284 | $12,612 | $12,895 | $13,469 | $13,281 | $13,379 | $14,064 | $14,582 | $14,203 |