White Mountains Insurance Group, Ltd. (WTM) NYSE

Currency In USD

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WTM Historical Return

If you invested $1000 in White Mountains Insurance Group, Ltd. (WTM) 10 years ago, it would be worth $2,734.34 as of October 22, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $2,041.07, while $1000 invested 1 year ago would be worth $1,178.81. This corresponds to total returns of 173.43%, 104.11%, 17.88%, respectively, with annualized returns of 10.58%, 15.33%, 17.88%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

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WTM Historical Data

Date Range:

DateOpenCloseAdj CloseHighLowVolume
October 22, 20262,220.12,247.522,247.522,252.422,200.3622,181
October 21, 20262,216.662,209.952,209.952,224.782,16228,457
October 20, 20262,1792,213.612,213.612,236.122,17927,539
October 19, 20262,147.12,167.122,167.122,177.632,147.116,985
October 16, 20262,146.232,160.312,160.312,172.042,137.9321,805
October 15, 20262,124.972,143.732,143.732,152.252,10930,233
October 14, 20262,100.32,098.012,098.012,106.612,069.2518,853
October 13, 20262,100.632,093.132,093.132,101.52,079.0416,109
October 12, 20262,069.072,086.762,086.762,098.452,064.9624,552
October 09, 20262,059.072,060.632,060.632,066.632,046.4120,162
October 08, 20262,036.572,059.772,059.772,064.042,020.1118,707
October 07, 20262,064.012,031.52,031.52,064.012,029.3620,365
October 06, 20262,015.642,037.252,037.252,038.782,008.9918,746
October 05, 20262,031.812,019.442,019.442,046.092,019.4420,351
October 02, 20262,012.32,020.922,020.922,034.92,002.2916,325
October 01, 20261,999.982,013.042,013.042,023.861,999.2214,221
September 30, 20262,028.442,006.492,006.492,028.441,997.1315,662
September 29, 20262,010.772,021.512,021.512,028.012,002.6112,824
September 28, 20262,035.52,014.972,014.972,035.52,000.8415,115
September 25, 20262,047.992,028.622,028.622,049.992,018.279,217
September 24, 20262,056.012,029.332,029.332,056.012,029.3310,969
September 23, 20262,049.762,032.012,032.012,069.892,028.1112,908
September 22, 20262,056.852,053.642,053.642,067.182,037.5816,122
September 21, 20262,062.782,056.852,056.852,076.532,049.6217,867
September 18, 20262,052.912,061.32,061.32,084.142,029.1539,107
September 17, 20262,0752,058.322,058.322,088.292,039.9723,170
September 16, 20262,041.022,062.372,062.372,074.412,040.0132,824
September 15, 20262,057.632,045.942,045.942,057.632,027.6419,654
September 11, 20262,086.682,053.152,053.152,098.42,042.5920,087
September 10, 20262,062.22,075.992,075.992,084.132,043.1430,072
September 09, 20262,051.632,050.812,050.812,055.72,03716,400
September 08, 20262,083.322,052.482,052.482,091.422,050.0127,066
September 04, 20262,1002,103.492,103.492,117.82,073.3524,920
September 03, 20262,1152,112.232,112.232,139.892,081.0121,772
September 02, 20262,099.032,104.752,104.752,129.12,088.3320,086
September 01, 20262,107.852,098.962,098.962,125.762,093.4322,104
August 31, 20262,130.432,102.012,102.012,1352,093.5521,810
August 28, 20262,133.032,135.412,135.412,1502,117.4918,405
August 27, 20262,125.012,127.572,127.572,1452,105.6123,494
August 26, 20262,134.742,132.742,132.742,1652,126.9216,135
August 25, 20262,135.752,141.22,141.22,146.042,12013,651
August 24, 20262,100.082,132.32,132.32,146.52,100.0819,596
August 21, 20262,101.862,110.952,110.952,140.32,101.8628,886
August 20, 20262,123.92,117.72,117.72,131.842,095.0121,207
August 19, 20262,130.792,129.22,129.22,150.842,107.6620,037
August 18, 20262,125.492,145.462,145.462,157.72,09022,584
August 17, 20262,130.232,113.42,113.42,145.482,107.7817,006
August 14, 20262,137.822,137.122,137.122,1452,121.0914,309
August 13, 20262,115.012,141.422,141.422,141.762,096.7228,680
August 12, 20262,134.012,119.462,119.462,152.192,094.0427,107
August 11, 20262,112.162,112.012,112.012,126.992,093.6321,080
August 10, 20262,148.612,109.682,109.682,172.182,107.8727,210
August 07, 20262,1322,149.442,149.442,168.312,112.630,152
August 06, 20262,137.732,141.092,141.092,151.22,112.9228,924
August 05, 20262,136.52,111.912,111.912,136.52,095.4319,313
August 04, 20262,098.32,117.862,117.862,127.882,07023,711
August 03, 20262,119.192,101.472,101.472,1362,086.7719,945
July 31, 20262,105.572,097.732,097.732,129.322,084.9912,684
July 30, 20262,151.32,118.612,118.612,151.32,087.213,781
July 29, 20262,186.212,150.342,150.342,2112,125.6421,155
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