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 +11.3%)

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
Jul 16, 2010	765,779,433
Jul 9, 2010	791,675,356
Jul 2, 2010	771,865,571
Jun 25, 2010	811,485,140
Jun 18, 2010	815,661,902
Jun 11, 2010	769,478,850
Jun 4, 2010	762,557,359
May 28, 2010	779,980,423
May 21, 2010	761,602,671
May 14, 2010	776,997,022
May 7, 2010	768,428,693
Apr 30, 2010	820,077,336
Apr 23, 2010	859,505,967
Apr 16, 2010	865,186,362
Apr 9, 2010	851,295,646
Apr 1, 2010	854,804,126
Mar 26, 2010	840,722,472
Mar 19, 2010	851,940,061
Mar 12, 2010	842,512,513
Mar 5, 2010	834,326,060
Feb 26, 2010	827,332,967
Feb 19, 2010	794,778,093
Feb 12, 2010	787,617,930
Feb 5, 2010	775,684,325
Jan 29, 2010	764,872,479
Jan 22, 2010	784,037,848
Jan 15, 2010	766,137,441
Jan 8, 2010	785,231,209
Dec 31, 2009	793,966,608
Dec 24, 2009	794,778,093
Dec 18, 2009	790,004,651
Dec 11, 2009	785,446,014
Dec 4, 2009	751,817,115
Nov 27, 2009	707,066,096
Nov 20, 2009	749,669,066
Nov 13, 2009	749,430,394
Nov 6, 2009	759,931,966
Oct 30, 2009	738,475,345
Oct 23, 2009	763,750,720
Oct 16, 2009	744,656,952
Oct 9, 2009	768,524,162
Oct 2, 2009	711,433,796
Sep 25, 2009	694,535,811
Sep 18, 2009	717,328,997
Sep 11, 2009	750,838,559
Sep 4, 2009	744,656,952
Aug 28, 2009	744,656,952
Aug 21, 2009	750,623,754
Aug 14, 2009	718,426,888
Aug 7, 2009	687,136,976
Jul 31, 2009	615,774,018
Jul 24, 2009	581,047,227
Jul 17, 2009	570,187,647
Jul 10, 2009	530,520,344
Jul 2, 2009	525,078,620
Jun 26, 2009	517,918,457
Jun 19, 2009	509,183,058
Jun 12, 2009	502,500,239
Jun 5, 2009	507,774,893
May 29, 2009	525,078,620
May 22, 2009	528,085,888
May 15, 2009	506,557,665
May 8, 2009	541,690,198
May 1, 2009	481,950,572
Apr 24, 2009	446,054,288
Apr 17, 2009	467,749,582
Apr 9, 2009	453,596,326
Apr 3, 2009	440,851,236
Mar 27, 2009	416,458,947
Mar 20, 2009	414,167,695
Mar 13, 2009	409,083,979
Mar 6, 2009	393,808,965
Feb 27, 2009	472,594,625
Feb 20, 2009	496,437,968
Feb 13, 2009	534,625,504
Feb 6, 2009	566,130,221
Jan 30, 2009	576,393,121
Jan 23, 2009	640,977,792
Jan 16, 2009	656,515,345
Jan 9, 2009	656,348,275
Jan 2, 2009	628,662,311
Dec 26, 2008	580,569,883
Dec 19, 2008	642,027,949
Dec 12, 2008	616,967,378
Dec 5, 2008	632,481,065
Nov 28, 2008	644,414,670
Nov 21, 2008	505,388,172
Nov 14, 2008	761,363,999
Nov 7, 2008	799,551,535
Oct 31, 2008	822,225,384
Oct 24, 2008	725,563,184
Oct 17, 2008	797,164,814
Oct 10, 2008	708,856,137
Oct 3, 2008	990,727,887
Sep 26, 2008	1,102,665,102
Sep 19, 2008	1,217,227,710
Sep 12, 2008	1,131,926,301
Sep 5, 2008	1,137,248,689
Aug 29, 2008	1,128,680,361
Aug 22, 2008	1,081,184,613