White Mountains Insurance Group, Ltd. Common Stock (WTM)

Market Cap

$5.31B

Current · Retrieved: Oct 25, 2026 · USD

WTM Market Cap

Current$5.31BretrievedOct 25, 2026

WTM Market Cap ($67.14M → $5.31B · CAGR +11.2%)

Latest values, visible window

High-resolution chart · PNG

WTM market cap history

Daily history. Dates identify market observations.

White Mountains Insurance Group, Ltd. Common Stock Market Cap — Daily history
Date	Market Cap
Sep 15, 2006	1,264,938,263
Sep 8, 2006	1,248,255,083
Sep 1, 2006	1,275,105,694
Aug 25, 2006	1,235,128,117
Aug 18, 2006	1,221,404,472
Aug 11, 2006	1,169,493,290
Aug 4, 2006	1,177,846,813
Jul 28, 2006	1,126,532,312
Jul 21, 2006	1,095,481,072
Jul 14, 2006	1,121,758,870
Jul 7, 2006	1,137,272,556
Jun 30, 2006	1,162,333,127
Jun 23, 2006	1,159,349,726
Jun 16, 2006	1,167,106,569
Jun 9, 2006	1,245,868,362
Jun 2, 2006	1,266,752,171
May 26, 2006	1,257,801,967
May 19, 2006	1,222,001,152
May 12, 2006	1,264,938,263
May 5, 2006	1,256,608,606
Apr 28, 2006	1,244,675,001
Apr 21, 2006	1,256,608,606
Apr 13, 2006	1,279,282,456
Apr 7, 2006	1,372,364,575
Mar 31, 2006	1,418,905,634
Mar 24, 2006	1,337,757,120
Mar 17, 2006	1,362,817,691
Mar 10, 2006	1,334,200,906
Mar 3, 2006	1,285,249,258
Feb 24, 2006	1,312,577,214
Feb 17, 2006	1,281,693,044
Feb 10, 2006	1,272,193,895
Feb 3, 2006	1,287,635,979
Jan 27, 2006	1,253,482,002
Jan 20, 2006	1,304,581,699
Jan 13, 2006	1,352,077,446
Jan 6, 2006	1,342,530,562
Dec 30, 2005	1,333,103,015
Dec 23, 2005	1,364,965,740
Dec 16, 2005	1,403,415,815
Dec 9, 2005	1,403,320,346
Dec 2, 2005	1,412,986,566
Nov 25, 2005	1,479,767,020
Nov 18, 2005	1,470,220,136
Nov 11, 2005	1,491,533,555
Nov 4, 2005	1,446,591,598
Oct 28, 2005	1,424,872,437
Oct 21, 2005	1,384,298,180
Oct 14, 2005	1,428,333,182
Oct 7, 2005	1,432,056,467
Sep 30, 2005	1,441,579,484
Sep 23, 2005	1,479,767,020
Sep 16, 2005	1,503,634,230
Sep 9, 2005	1,572,849,139
Sep 2, 2005	1,560,676,862
Aug 26, 2005	1,631,323,803
Aug 19, 2005	1,629,151,887
Aug 12, 2005	1,535,854,963
Aug 5, 2005	1,521,057,293
Jul 29, 2005	1,525,114,719
Jul 22, 2005	1,509,601,032
Jul 15, 2005	1,493,490,666
Jul 8, 2005	1,529,888,161
Jul 1, 2005	1,522,727,998
Jun 24, 2005	1,539,435,045
Jun 17, 2005	1,587,169,465
Jun 10, 2005	1,540,151,061
Jun 3, 2005	1,583,589,383
May 27, 2005	1,575,235,860
May 20, 2005	1,599,079,203
May 13, 2005	1,560,915,534
May 6, 2005	1,575,235,860
Apr 29, 2005	1,496,497,934
Apr 22, 2005	1,396,231,785
Apr 15, 2005	1,381,839,857
Apr 8, 2005	1,353,270,807
Apr 1, 2005	1,432,056,467
Mar 24, 2005	1,467,833,415
Mar 18, 2005	1,551,344,783
Mar 11, 2005	1,618,172,971
Mar 4, 2005	1,611,036,675
Feb 25, 2005	1,568,075,697
Feb 18, 2005	1,570,462,418
Feb 11, 2005	1,541,821,766
Feb 4, 2005	1,520,627,684
Jan 28, 2005	1,404,561,441
Jan 21, 2005	1,413,535,512
Jan 14, 2005	1,451,126,368
Jan 7, 2005	1,435,612,681
Dec 31, 2004	1,541,821,766
Dec 23, 2004	1,520,341,277
Dec 17, 2004	1,489,313,904
Dec 10, 2004	1,436,877,644
Dec 3, 2004	1,420,695,675
Nov 26, 2004	1,448,739,647
Nov 19, 2004	1,501,247,509
Nov 12, 2004	1,276,895,735
Nov 5, 2004	1,264,962,130
Oct 29, 2004	1,217,705,054
Oct 22, 2004	1,195,747,221