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WHITE MOUNTAINS INSURANCE GROUP, LTD (WTM) Operating Cash Flow

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WHITE MOUNTAINS INSURANCE GROUP, LTD Operating Cash Flow

WHITE MOUNTAINS INSURANCE GROUP, LTD (WTM) reported Operating Cash Flow of -$25.00 million for the 6-month period ending 2026-06-30, per its 10-Q filed 2026-08-06.

Financial Statements › Cash Flow › Operating Activities

us-gaap:NetCashProvidedByUsedInOperatingActivities · last filed 2026-08-06

  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for the quarter ending 2026-06-30 was -$55.50M, a 131.27% decline year-over-year.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for the quarter ending 2026-03-31 was $30.50M.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for the quarter ending 2025-12-31 was $53.90M, a 15.91% decline year-over-year.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for the quarter ending 2025-09-30 was $359.30M, a 33.37% increase year-over-year.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for fiscal 2025 was $550.50M, a 6.19% decline from fiscal 2024.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for fiscal 2024 was $586.80M, a 45.21% increase from fiscal 2023.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for fiscal 2023 was $404.10M, a 10.71% increase from fiscal 2022.
  • WHITE MOUNTAINS INSURANCE GROUP, LTD net cash provided by (used in) operating activities for fiscal 2022 was $365.00M, a 845.60% increase from fiscal 2021.
Period endNet Cash Provided by (Used in) Operating Activities 3 monthNet Cash Provided by (Used in) Operating Activities 3 month as first filedNet Cash Provided by (Used in) Operating Activities 6 monthNet Cash Provided by (Used in) Operating Activities 6 month as first filedNet Cash Provided by (Used in) Operating Activities 9 monthNet Cash Provided by (Used in) Operating Activities 9 month as first filedNet Cash Provided by (Used in) Operating Activities 12 monthNet Cash Provided by (Used in) Operating Activities 12 month as first filed
2026-06-30-$55.50M
derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06
-$25.00M
10-Q · filed 2026-08-06
$28.90M
derived: sum of 3 quarters · filed 2026-08-06
$388.20M
derived: sum of 4 quarters · filed 2026-08-06
2026-03-31$30.50M
10-Q · filed 2026-05-06
$84.40M
derived: sum of 2 quarters · filed 2026-05-06
$443.70M
derived: sum of 3 quarters · filed 2026-05-06
$621.20M
derived: sum of 4 quarters · filed 2026-08-06
2025-12-31$53.90M
derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27
$413.20M
derived: sum of 2 quarters · filed 2026-02-27
$590.70M
derived: sum of 3 quarters · filed 2026-08-06
$550.50M
10-K · filed 2026-02-27
2025-09-30$359.30M
derived: 10-Q 9 month − 10-Q 6 month · filed 2025-11-06
$536.80M
derived: sum of 2 quarters · filed 2026-08-06
$496.60M
10-Q · filed 2025-11-06
$560.70M
derived: sum of 4 quarters · filed 2026-08-06
2025-06-30$177.50M
derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06
$137.30M
10-Q · filed 2026-08-06
$201.40M
derived: sum of 3 quarters · filed 2026-08-06
$470.80M
derived: sum of 4 quarters · filed 2026-08-06
2025-03-31-$40.20M
10-Q · filed 2026-05-06
$23.90M
derived: sum of 2 quarters · filed 2026-05-06
$293.30M
derived: sum of 3 quarters · filed 2026-05-06
$510.10M
derived: sum of 4 quarters · filed 2026-05-06
2024-12-31$64.10M
derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27
$333.50M
derived: sum of 2 quarters · filed 2026-02-27
$550.30M
derived: sum of 3 quarters · filed 2026-02-27
$586.80M
10-K · filed 2026-02-27
2024-09-30$269.40M
derived: 10-Q 9 month − 10-Q 6 month · filed 2025-11-06
$486.20M
derived: sum of 2 quarters · filed 2025-11-06
$522.70M
10-Q · filed 2025-11-06
$547.20M
derived: sum of 4 quarters · filed 2026-02-27
2024-06-30$216.80M
derived: 10-Q 6 month − 10-Q 3 month · filed 2025-08-07
$253.30M
10-Q · filed 2025-08-07
$277.80M
derived: sum of 3 quarters · filed 2026-02-27
$500.70M
derived: sum of 4 quarters · filed 2026-02-27
2024-03-31$36.50M
10-Q · filed 2025-05-07
$61.00M
derived: sum of 2 quarters · filed 2026-02-27
$283.90M
derived: sum of 3 quarters · filed 2026-02-27
$355.00M
derived: sum of 4 quarters · filed 2026-02-27
2023-12-31$24.50M
derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27
$247.40M
derived: sum of 2 quarters · filed 2026-02-27
$318.50M
derived: sum of 3 quarters · filed 2026-02-27
$404.10M
10-K · filed 2026-02-27
2023-09-30$222.90M
derived: 10-Q 9 month − 10-Q 6 month · filed 2024-11-06
$294.00M
derived: sum of 2 quarters · filed 2024-11-06
$379.60M
10-Q · filed 2024-11-06
$587.70M
derived: sum of 4 quarters · filed 2025-02-28
2023-06-30$71.10M
derived: 10-Q 6 month − 10-Q 3 month · filed 2024-08-07
$156.70M
10-Q · filed 2024-08-07
$364.80M
derived: sum of 3 quarters · filed 2025-02-28
$481.80M
derived: sum of 4 quarters · filed 2025-02-28
2023-03-31$85.60M
10-Q · filed 2024-05-09
$293.70M
derived: sum of 2 quarters · filed 2025-02-28
$410.70M
derived: sum of 3 quarters · filed 2025-02-28
$492.10M
derived: sum of 4 quarters · filed 2025-02-28
2022-12-31$208.10M
derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-28
$325.10M
derived: sum of 2 quarters · filed 2025-02-28
$406.50M
derived: sum of 3 quarters · filed 2025-02-28
$365.00M
10-K · filed 2025-02-28
2022-09-30$117.00M
derived: 10-Q 9 month − 10-Q 6 month · filed 2023-11-06
$198.40M
derived: sum of 2 quarters · filed 2023-11-06
$156.90M
10-Q · filed 2023-11-06
$149.50M
derived: sum of 4 quarters · filed 2024-02-26
2022-06-30$81.40M
derived: 10-Q 6 month − 10-Q 3 month · filed 2023-08-07
$39.90M
10-Q · filed 2023-08-07
$32.50M
derived: sum of 3 quarters · filed 2024-02-26
$64.60M
derived: sum of 4 quarters · filed 2024-02-26
2022-03-31-$41.50M
10-Q · filed 2023-05-09
-$48.90M
derived: sum of 2 quarters · filed 2024-02-26
-$16.80M
derived: sum of 3 quarters · filed 2024-02-26
$89.90M
derived: sum of 4 quarters · filed 2024-02-26
2021-12-31-$7.40M
derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-26
$24.70M
derived: sum of 2 quarters · filed 2024-02-26
$131.40M
derived: sum of 3 quarters · filed 2024-02-26
$38.60M
10-K · filed 2024-02-26
2021-09-30$32.10M
derived: 10-Q 9 month − 10-Q 6 month · filed 2022-11-07
$138.80M
derived: sum of 2 quarters · filed 2022-11-07
$46.00M
10-Q · filed 2022-11-07
-$26.80M
derived: sum of 4 quarters · filed 2023-02-27
2021-06-30$106.70M
derived: 10-Q 6 month − 10-Q 3 month · filed 2022-08-08
$13.90M
10-Q · filed 2022-08-08
-$58.90M
derived: sum of 3 quarters · filed 2023-02-27
-$7.80M
derived: sum of 4 quarters · filed 2023-02-27
2021-03-31-$92.80M
10-Q · filed 2022-05-06
-$165.60M
derived: sum of 2 quarters · filed 2023-02-27
-$114.50M
derived: sum of 3 quarters · filed 2023-02-27
-$93.60M
derived: sum of 4 quarters · filed 2023-02-27
2020-12-31-$72.80M
derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-27
-$21.70M
derived: sum of 2 quarters · filed 2023-02-27
-$800.00K
derived: sum of 3 quarters · filed 2023-02-27
-$60.60M
10-K · filed 2023-02-27
2020-09-30$51.10M
derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-08
$72.00M
derived: sum of 2 quarters · filed 2021-11-08
$12.20M
10-Q · filed 2021-11-08
-$35.80M
derived: sum of 4 quarters · filed 2022-02-28
2020-06-30$20.90M
derived: 10-Q 6 month − 10-Q 3 month · filed 2021-08-06
-$38.90M
10-Q · filed 2021-08-06
-$86.90M
derived: sum of 3 quarters · filed 2022-02-28
-$161.20M
derived: sum of 4 quarters · filed 2022-02-28
2020-03-31-$59.80M
10-Q · filed 2021-05-10
-$107.80M
derived: sum of 2 quarters · filed 2022-02-28
-$182.10M
derived: sum of 3 quarters · filed 2022-02-28
-$139.20M
derived: sum of 4 quarters · filed 2022-02-28
2019-12-31-$48.00M
derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-28
-$122.30M
derived: sum of 2 quarters · filed 2022-02-28
-$79.40M
derived: sum of 3 quarters · filed 2022-02-28
-$120.50M
10-K · filed 2022-02-28
2019-09-30-$74.30M
derived: 10-Q 9 month − 10-Q 6 month · filed 2020-11-06
-$31.40M
derived: sum of 2 quarters · filed 2020-11-06
-$72.50M
10-Q · filed 2020-11-06
-$73.10M
derived: sum of 4 quarters · filed 2021-02-26
2019-06-30$42.90M
derived: 10-Q 6 month − 10-Q 3 month · filed 2020-08-07
$1.80M
10-Q · filed 2020-08-07
$1.20M
derived: sum of 3 quarters · filed 2021-02-26
-$3.90M
derived: sum of 4 quarters · filed 2021-02-26
2019-03-31-$41.10M
10-Q · filed 2020-05-08
-$41.70M
derived: sum of 2 quarters · filed 2021-02-26
-$46.80M
derived: sum of 3 quarters · filed 2021-02-26
-$27.50M
derived: sum of 4 quarters · filed 2021-02-26
2018-12-31-$600.00K
derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-26
-$5.70M
derived: sum of 2 quarters · filed 2021-02-26
$13.60M
derived: sum of 3 quarters · filed 2021-02-26
-$31.10M
10-K · filed 2021-02-26
2018-09-30-$5.10M
derived: 10-Q 9 month − 10-Q 6 month · filed 2019-11-06
$14.20M
derived: sum of 2 quarters · filed 2019-11-06
-$30.50M
10-Q · filed 2019-11-06
-$28.50M
derived: sum of 4 quarters · filed 2020-03-02
2018-06-30$19.30M
derived: 10-Q 6 month − 10-Q 3 month · filed 2019-08-06
-$25.40M
10-Q · filed 2019-08-06
-$23.40M
derived: sum of 3 quarters · filed 2020-03-02
$48.10M
derived: sum of 4 quarters · filed 2020-03-02
2018-03-31-$44.70M
10-Q · filed 2019-05-06
-$42.70M
derived: sum of 2 quarters · filed 2020-03-02
$28.80M
derived: sum of 3 quarters · filed 2020-03-02
$106.00M
derived: sum of 4 quarters · filed 2020-03-02
2017-12-31$2.00M
derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-02
$73.50M
derived: sum of 2 quarters · filed 2020-03-02
$150.70M
derived: sum of 3 quarters · filed 2020-03-02
$94.60M
10-K · filed 2020-03-02
2017-09-30$71.50M
derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-05
$148.70M
derived: sum of 2 quarters · filed 2018-11-05
$92.60M
10-Q · filed 2018-11-05
$74.10M
derived: sum of 4 quarters · filed 2019-02-27
2017-06-30$77.20M
derived: 10-Q 6 month − 10-Q 3 month · filed 2018-08-07
$21.10M
10-Q · filed 2018-08-07
$2.60M
derived: sum of 3 quarters · filed 2019-02-27
$48.10M
derived: sum of 4 quarters · filed 2019-02-27
2017-03-31-$56.10M
10-Q · filed 2018-05-02
-$74.60M
derived: sum of 2 quarters · filed 2019-02-27
-$29.10M
derived: sum of 3 quarters · filed 2019-02-27
-$124.60M
derived: sum of 4 quarters · filed 2019-02-27
2016-12-31-$18.50M
derived: 10-K 12 month − 10-Q 9 month · filed 2019-02-27
$27.00M
derived: sum of 2 quarters · filed 2019-02-27
-$68.50M
derived: sum of 3 quarters · filed 2019-02-27
-$155.10M
10-K · filed 2019-02-27
-$155.30M
10-K · filed 2017-02-27
2016-09-30$45.50M
derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-08
-$50.00M
derived: sum of 2 quarters · filed 2017-11-08
-$136.60M
10-Q · filed 2017-11-08
-$142.30M
10-Q · filed 2016-11-02
-$41.50M
derived: sum of 4 quarters · filed 2018-02-28
2016-06-30-$95.50M
derived: 10-Q 6 month − 10-Q 3 month · filed 2017-08-04
-$182.10M
10-Q · filed 2017-08-04
-$187.20M
10-Q · filed 2016-08-03
-$87.00M
derived: sum of 3 quarters · filed 2018-02-28
$36.00M
derived: sum of 4 quarters · filed 2018-02-28
2016-03-31-$86.60M
10-Q · filed 2017-05-02
-$92.40M
10-Q · filed 2016-05-02
$8.50M
derived: sum of 2 quarters · filed 2018-02-28
$131.50M
derived: sum of 3 quarters · filed 2018-02-28
$153.50M
derived: sum of 4 quarters · filed 2018-02-28
2015-12-31$95.10M
derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-28
$218.10M
derived: sum of 2 quarters · filed 2018-02-28
$240.10M
derived: sum of 3 quarters · filed 2018-02-28
$182.40M
10-K · filed 2018-02-28
$175.70M
10-K · filed 2016-02-29
2015-09-30$123.00M
derived: 10-Q 9 month − 10-Q 6 month · filed 2016-11-02
$145.00M
derived: sum of 2 quarters · filed 2016-11-02
$87.30M
10-Q · filed 2016-11-02
$82.80M
derived: sum of 4 quarters · filed 2017-02-27
2015-06-30$22.00M
derived: 10-Q 6 month − 10-Q 3 month · filed 2016-08-03
-$35.70M
10-Q · filed 2016-08-03
-$40.20M
derived: sum of 3 quarters · filed 2017-02-27
$125.50M
derived: sum of 4 quarters · filed 2017-02-27
2015-03-31-$57.70M
10-Q · filed 2016-05-02
-$62.20M
derived: sum of 2 quarters · filed 2017-02-27
$103.50M
derived: sum of 3 quarters · filed 2017-02-27
$108.30M
derived: sum of 4 quarters · filed 2017-02-27
2014-12-31-$4.50M
derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-27
$161.20M
derived: sum of 2 quarters · filed 2017-02-27
$166.00M
derived: sum of 3 quarters · filed 2017-02-27
$118.80M
10-K · filed 2017-02-27
2014-09-30$165.70M
derived: 10-Q 9 month − 10-Q 6 month · filed 2015-11-02
$170.50M
derived: sum of 2 quarters · filed 2015-11-02
$123.30M
10-Q · filed 2015-11-02
$93.10M
derived: sum of 4 quarters · filed 2016-02-29
2014-06-30$4.80M
derived: 10-Q 6 month − 10-Q 3 month · filed 2015-08-03
-$42.40M
10-Q · filed 2015-08-03
-$72.60M
derived: sum of 3 quarters · filed 2016-02-29
$121.00M
derived: sum of 4 quarters · filed 2016-02-29
2014-03-31-$47.20M
10-Q · filed 2015-05-04
-$77.40M
derived: sum of 2 quarters · filed 2016-02-29
$116.20M
derived: sum of 3 quarters · filed 2016-02-29
$76.70M
derived: sum of 4 quarters · filed 2016-02-29
2013-12-31-$30.20M
derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-29
$163.40M
derived: sum of 2 quarters · filed 2016-02-29
$123.90M
derived: sum of 3 quarters · filed 2016-02-29
-$101.00M
10-K · filed 2016-02-29
2013-09-30$193.60M
derived: 10-Q 9 month − 10-Q 6 month · filed 2014-10-29
$154.10M
derived: sum of 2 quarters · filed 2014-10-29
-$70.80M
10-Q · filed 2014-10-29
-$168.00M
derived: sum of 4 quarters · filed 2015-02-27
2013-06-30-$39.50M
derived: 10-Q 6 month − 10-Q 3 month · filed 2014-07-29
-$264.40M
10-Q · filed 2014-07-29
-$361.60M
derived: sum of 3 quarters · filed 2015-02-27
-$206.40M
derived: sum of 4 quarters · filed 2015-02-27
2013-03-31-$224.90M
10-Q · filed 2014-04-28
-$322.10M
derived: sum of 2 quarters · filed 2015-02-27
-$166.90M
derived: sum of 3 quarters · filed 2015-02-27
-$117.40M
derived: sum of 4 quarters · filed 2015-02-27
2012-12-31-$97.20M
derived: 10-K 12 month − 10-Q 9 month · filed 2015-02-27
$58.00M
derived: sum of 2 quarters · filed 2015-02-27
$107.50M
derived: sum of 3 quarters · filed 2015-02-27
-$225.80M
10-K · filed 2015-02-27
2012-09-30$155.20M
derived: 10-Q 9 month − 10-Q 6 month · filed 2012-10-30
$204.70M
derived: sum of 2 quarters · filed 2013-07-30
-$128.60M
10-Q · filed 2012-10-30
-$283.70M
derived: sum of 4 quarters · filed 2014-02-28
2012-06-30$49.50M
derived: 10-Q 6 month − 10-Q 3 month · filed 2013-07-30
-$283.80M
10-Q · filed 2013-07-30
-$275.80M
10-Q · filed 2012-07-27
-$438.90M
derived: sum of 3 quarters · filed 2014-02-28
-$262.70M
derived: sum of 4 quarters · filed 2014-02-28
2012-03-31-$333.30M
10-Q · filed 2013-04-29
-$334.40M
10-Q · filed 2012-04-27
-$488.40M
derived: sum of 2 quarters · filed 2014-02-28
-$312.20M
derived: sum of 3 quarters · filed 2014-02-28
-$318.20M
derived: sum of 4 quarters · filed 2014-02-28
2011-12-31-$155.10M
derived: 10-K 12 month − 10-Q 9 month · filed 2014-02-28
$21.10M
derived: sum of 2 quarters · filed 2014-02-28
$15.10M
derived: sum of 3 quarters · filed 2014-02-28
-$114.50M
10-K · filed 2014-02-28
2011-09-30$176.20M
derived: 10-Q 9 month − 10-Q 6 month · filed 2012-10-30
$170.20M
derived: sum of 2 quarters · filed 2012-10-30
$40.60M
10-Q · filed 2012-10-30
$40.50M
10-Q · filed 2011-10-28
$117.60M
derived: sum of 4 quarters · filed 2013-03-01
2011-06-30-$6.00M
derived: 10-Q 6 month − 10-Q 3 month · filed 2012-07-27
-$135.60M
10-Q · filed 2012-07-27
-$58.60M
derived: sum of 3 quarters · filed 2013-03-01
-$134.20M
derived: sum of 4 quarters · filed 2013-03-01
2011-03-31-$129.60M
10-Q · filed 2012-04-27
-$129.70M
10-Q · filed 2011-04-29
-$52.60M
derived: sum of 2 quarters · filed 2013-03-01
-$128.20M
derived: sum of 3 quarters · filed 2013-03-01
-$2.10M
derived: sum of 4 quarters · filed 2013-03-01
2010-12-31$77.00M
derived: 10-K 12 month − 10-Q 9 month · filed 2013-03-01
$1.40M
derived: sum of 2 quarters · filed 2013-03-01
$127.50M
derived: sum of 3 quarters · filed 2013-03-01
$56.00M
10-K · filed 2013-03-01
2010-09-30-$75.60M
derived: 10-Q 9 month − 10-Q 6 month · filed 2011-10-28
$50.50M
derived: sum of 2 quarters · filed 2011-10-28
-$21.00M
10-Q · filed 2011-10-28
-$21.10M
10-Q · filed 2010-10-29
-$24.30M
derived: sum of 4 quarters · filed 2011-10-28
2010-06-30$126.10M
derived: 10-Q 6 month − 10-Q 3 month · filed 2011-07-29
$54.60M
10-Q · filed 2011-07-29
$51.30M
derived: sum of 3 quarters · filed 2011-07-29
$221.50M
derived: sum of 4 quarters · filed 2011-07-29
2010-03-31-$71.50M
10-Q · filed 2011-04-29
-$74.80M
derived: sum of 2 quarters · filed 2011-04-29
$95.40M
derived: sum of 3 quarters · filed 2011-04-29
2009-12-31-$3.30M
derived: 10-K 12 month − 10-Q 9 month · filed 2011-02-28
$166.90M
derived: sum of 2 quarters · filed 2011-02-28
-$46.70M
10-K · filed 2011-02-28
2009-09-30$170.20M
derived: 10-Q 9 month − 10-Q 6 month · filed 2010-10-29
-$43.40M
10-Q · filed 2010-10-29
2009-06-30-$213.60M
10-Q · filed 2010-07-30
2008-12-31$89.10M
10-K · filed 2011-02-28

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