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
Dec 8, 2000	663,365,235
Dec 1, 2000	665,895,159
Nov 24, 2000	682,602,206
Nov 17, 2000	680,215,485
Nov 10, 2000	653,961,554
Nov 3, 2000	613,387,297
Oct 27, 2000	572,216,360
Oct 20, 2000	582,670,198
Oct 13, 2000	603,840,413
Oct 6, 2000	570,426,319
Sep 29, 2000	651,288,426
Sep 22, 2000	416,482,814
Sep 15, 2000	395,599,006
Sep 8, 2000	393,212,285
Sep 1, 2000	391,422,244
Aug 25, 2000	387,245,482
Aug 18, 2000	390,228,883
Aug 11, 2000	374,858,400
Aug 4, 2000	371,135,115
Jul 28, 2000	374,715,197
Jul 21, 2000	381,278,680
Jul 14, 2000	389,035,523
Jul 7, 2000	387,245,482
Jun 30, 2000	381,875,360
Jun 23, 2000	384,262,081
Jun 16, 2000	386,648,802
Jun 9, 2000	355,764,632
Jun 2, 2000	344,881,184
May 26, 2000	336,241,254
May 19, 2000	336,527,661
May 12, 2000	327,577,457
May 5, 2000	336,527,661
Apr 28, 2000	331,897,422
Apr 20, 2000	312,660,451
Apr 14, 2000	301,633,800
Apr 7, 2000	314,450,492
Mar 31, 2000	320,130,888
Mar 24, 2000	322,064,132
Mar 17, 2000	324,140,579
Mar 10, 2000	284,019,799
Mar 3, 2000	254,185,786
Feb 25, 2000	254,185,786
Feb 18, 2000	260,152,589
Feb 11, 2000	271,799,787
Feb 4, 2000	268,816,386
Jan 28, 2000	266,119,391
Jan 21, 2000	279,246,357
Jan 14, 2000	274,472,915
Jan 7, 2000	282,229,758
Dec 31, 1999	287,599,880
Dec 23, 1999	282,826,438
Dec 17, 1999	285,213,159
Dec 10, 1999	285,809,840
Dec 3, 1999	279,556,631
Nov 26, 1999	289,103,515
Nov 19, 1999	289,389,921
Nov 12, 1999	291,776,642
Nov 5, 1999	292,683,596
Oct 29, 1999	301,920,206
Oct 22, 1999	321,013,974
Oct 15, 1999	299,533,485
Oct 8, 1999	313,113,928
Oct 1, 1999	319,820,614
Sep 24, 1999	323,543,899
Sep 17, 1999	318,030,573
Sep 10, 1999	322,350,538
Sep 3, 1999	313,853,811
Aug 27, 1999	317,433,893
Aug 20, 1999	319,223,934
Aug 13, 1999	312,970,725
Aug 6, 1999	312,660,451
Jul 30, 1999	315,643,852
Jul 23, 1999	312,660,451
Jul 16, 1999	328,174,137
Jul 9, 1999	332,947,579
Jul 2, 1999	339,511,062
Jun 25, 1999	338,914,382
Jun 18, 1999	329,367,498
Jun 11, 1999	338,317,702
Jun 4, 1999	337,721,021
May 28, 1999	355,621,429
May 21, 1999	355,621,429
May 14, 1999	347,578,179
May 7, 1999	338,627,975
Apr 30, 1999	343,687,824
Apr 23, 1999	342,494,463
Apr 16, 1999	344,284,504
Apr 9, 1999	313,567,405
Apr 1, 1999	318,627,253
Mar 26, 1999	295,666,997
Mar 19, 1999	296,550,084
Mar 12, 1999	309,677,050
Mar 5, 1999	316,837,213
Feb 26, 1999	313,853,811
Feb 19, 1999	317,433,893
Feb 12, 1999	328,174,137
Feb 5, 1999	335,477,504
Jan 29, 1999	347,864,586
Jan 22, 1999	343,831,027
Jan 15, 1999	346,074,545