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
Jan 8, 1999	341,014,696
Dec 31, 1998	334,284,143
Dec 24, 1998	327,577,457
Dec 18, 1998	323,114,289
Dec 11, 1998	330,274,452
Dec 4, 1998	339,654,266
Nov 27, 1998	334,284,143
Nov 20, 1998	331,467,812
Nov 13, 1998	331,754,219
Nov 6, 1998	315,047,172
Oct 30, 1998	302,516,887
Oct 23, 1998	299,986,962
Oct 16, 1998	297,457,038
Oct 9, 1998	294,163,363
Oct 2, 1998	298,340,125
Sep 25, 1998	295,356,724
Sep 18, 1998	287,456,677
Sep 11, 1998	285,213,159
Sep 4, 1998	284,330,073
Aug 28, 1998	315,047,172
Aug 21, 1998	341,301,103
Aug 14, 1998	351,444,667
Aug 7, 1998	360,251,668
Jul 31, 1998	360,394,871
Jul 24, 1998	358,008,150
Jul 17, 1998	365,478,587
Jul 10, 1998	355,621,429
Jul 2, 1998	346,074,545
Jun 26, 1998	353,831,388
Jun 19, 1998	349,654,626
Jun 12, 1998	354,738,342
Jun 5, 1998	355,621,429
May 29, 1998	349,797,830
May 22, 1998	352,041,347
May 15, 1998	350,251,307
May 8, 1998	338,914,382
May 1, 1998	336,527,661
Apr 24, 1998	330,560,858
Apr 17, 1998	325,930,620
Apr 9, 1998	329,367,498
Apr 3, 1998	332,350,899
Mar 27, 1998	326,384,097
Mar 20, 1998	325,787,416
Mar 13, 1998	322,207,335
Mar 6, 1998	316,240,532
Feb 27, 1998	312,063,771
Feb 20, 1998	307,887,009
Feb 13, 1998	300,726,846
Feb 6, 1998	303,113,567
Jan 30, 1998	313,853,811
Jan 23, 1998	312,660,451
Jan 16, 1998	312,660,451
Jan 9, 1998	303,113,567
Jan 2, 1998	291,179,962
Dec 26, 1997	284,019,799
Dec 19, 1997	287,599,880
Dec 12, 1997	291,179,962
Dec 5, 1997	291,776,642
Nov 28, 1997	292,683,596
Nov 21, 1997	286,406,520
Nov 14, 1997	286,549,723
Nov 7, 1997	284,019,799
Oct 31, 1997	285,213,159
Oct 24, 1997	260,152,589
Oct 17, 1997	258,219,345
Oct 10, 1997	264,329,351
Oct 3, 1997	263,732,670
Sep 26, 1997	252,109,339
Sep 19, 1997	254,042,583
Sep 12, 1997	252,395,746
Sep 5, 1997	254,042,583
Aug 29, 1997	251,799,065
Aug 22, 1997	248,815,664
Aug 15, 1997	250,605,705
Aug 8, 1997	251,799,065
Aug 1, 1997	255,235,944
Jul 25, 1997	248,218,984
Jul 18, 1997	245,832,263
Jul 11, 1997	250,605,705
Jul 3, 1997	248,218,984
Jun 27, 1997	251,799,065
Jun 20, 1997	254,782,467
Jun 13, 1997	257,765,868
Jun 6, 1997	246,142,537
May 30, 1997	242,252,181
May 23, 1997	238,385,693
May 16, 1997	240,462,141
May 9, 1997	238,982,374
May 2, 1997	242,252,181
Apr 25, 1997	236,882,059
Apr 18, 1997	243,445,542
Apr 11, 1997	238,075,420
Apr 4, 1997	242,252,181
Mar 27, 1997	248,218,984
Mar 21, 1997	250,605,705
Mar 14, 1997	260,152,589
Mar 7, 1997	256,286,101
Feb 28, 1997	254,185,786
Feb 21, 1997	246,428,943
Feb 14, 1997	247,622,304