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White Mountains Insurance Group, Ltd. (WTM)
NYSE: WTM · Real-Time Price · USD
2,096.56
+76.86 (3.81%)
At close: Jun 26, 2026, 4:00 PM EDT
2,096.56
0.00 (0.00%)
After-hours: Jun 26, 2026, 7:00 PM EDT

WTM Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 26, 20262,023.792,096.562,023.792,096.562,096.563.81%25,750
Jun 25, 20262,021.782,048.662,009.022,019.702,019.70-0.13%14,352
Jun 24, 20262,026.752,044.042,006.152,022.412,022.41-0.06%13,491
Jun 23, 20262,015.362,028.342,001.992,023.632,023.630.64%16,052
Jun 22, 20262,023.032,035.001,999.842,010.752,010.75-0.13%13,169
Jun 18, 20261,997.362,019.891,990.782,013.362,013.360.49%25,426
Jun 17, 20262,021.602,045.501,990.002,003.492,003.49-1.42%21,156
Jun 16, 20262,037.762,051.662,010.002,032.372,032.370.09%20,369
Jun 15, 20262,026.102,059.622,000.352,030.642,030.640.33%31,018
Jun 12, 20261,995.502,030.001,991.302,024.052,024.051.73%17,746
Jun 11, 20262,021.102,041.421,987.001,989.541,989.54-1.45%17,043
Jun 10, 20262,014.352,037.792,006.152,018.892,018.890.70%23,503
Jun 9, 20262,029.502,050.001,991.292,004.762,004.76-0.94%26,468
Jun 8, 20262,060.002,070.002,020.032,023.702,023.70-2.01%28,818
Jun 5, 20262,016.802,084.712,016.802,065.142,065.142.46%22,318
Jun 4, 20262,035.002,065.002,010.542,015.542,015.54-0.91%29,875
Jun 3, 20262,050.812,066.062,017.982,034.022,034.02-0.82%44,973
Jun 2, 20262,060.032,087.912,050.622,050.812,050.81-0.54%23,501
Jun 1, 20262,052.252,077.202,052.252,062.032,062.03-0.14%24,247
May 29, 20262,093.142,096.552,060.922,064.822,064.82-0.94%25,574
May 28, 20262,090.392,106.052,072.012,084.312,084.31-0.84%23,509
May 27, 20262,138.972,159.002,094.472,101.942,101.94-1.28%26,949
May 26, 20262,140.402,166.052,129.172,129.172,129.17-0.82%16,926
May 22, 20262,136.842,159.002,136.842,146.852,146.850.36%16,554
May 21, 20262,130.132,152.182,130.032,139.092,139.09-0.27%22,424
May 20, 20262,152.052,175.002,142.502,144.812,144.810.03%18,203
May 19, 20262,127.272,159.002,125.022,144.192,144.190.27%29,147
May 18, 20262,139.002,177.002,121.032,138.352,138.350.07%17,881
May 15, 20262,119.072,149.992,105.002,136.762,136.761.14%21,164
May 14, 20262,128.912,196.092,096.232,112.722,112.72-0.34%27,705
May 13, 20262,105.142,150.002,105.142,119.912,119.910.51%22,999
May 12, 20262,141.682,162.002,099.942,109.202,109.20-1.14%22,395
May 11, 20262,143.002,173.112,110.002,133.582,133.580.24%20,958
May 8, 20262,103.902,136.452,075.052,128.402,128.401.72%18,776
May 7, 20262,080.002,106.282,050.012,092.502,092.500.60%26,154
May 6, 20262,151.302,176.582,071.882,080.002,080.00-3.33%38,256
May 5, 20262,173.372,193.712,147.772,151.672,151.67-0.73%17,258
May 4, 20262,153.872,203.002,132.762,167.412,167.410.18%26,776
May 1, 20262,213.002,216.522,158.182,163.502,163.50-3.07%19,453
Apr 30, 20262,201.092,235.002,190.662,231.992,231.991.18%10,938
Apr 29, 20262,261.292,270.212,188.442,206.002,206.00-2.55%12,698
Apr 28, 20262,284.002,303.482,256.572,263.692,263.69-0.17%16,543
Apr 27, 20262,260.602,286.662,245.312,267.562,267.560.37%15,978
Apr 24, 20262,279.542,279.542,243.942,259.272,259.27-1.14%15,338
Apr 23, 20262,283.322,301.532,268.152,285.392,285.390.71%9,395
Apr 22, 20262,292.872,292.872,261.102,269.192,269.19-0.31%14,692
Apr 21, 20262,278.102,290.972,261.032,276.342,276.340.06%10,234
Apr 20, 20262,309.962,326.452,275.012,275.012,275.01-1.91%14,113
Apr 17, 20262,292.202,333.002,270.052,319.412,319.411.08%14,213
Apr 16, 20262,290.792,300.502,273.242,294.722,294.720.14%10,753
Apr 15, 20262,301.102,310.122,280.002,291.462,291.46-0.37%15,855
Apr 14, 20262,282.202,318.572,282.202,300.002,300.000.09%17,461
Apr 13, 20262,280.082,307.252,254.222,297.992,297.99-0.14%15,256
Apr 10, 20262,307.102,307.102,266.622,301.142,301.14-0.38%19,809
Apr 9, 20262,277.222,325.782,255.002,309.922,309.921.44%17,085
Apr 8, 20262,235.442,290.662,205.002,277.212,277.212.77%17,636
Apr 7, 20262,192.962,242.002,192.962,215.732,215.730.53%15,948
Apr 6, 20262,169.312,206.242,067.212,203.962,203.961.58%27,441
Apr 2, 20262,176.402,191.192,156.002,169.762,169.76-0.40%17,990
Apr 1, 20262,197.202,206.252,160.002,178.442,178.44-0.84%22,249
Mar 31, 20262,212.632,224.112,163.412,196.962,196.960.14%25,094
Mar 30, 20262,164.392,210.862,150.802,193.862,193.861.86%14,760
Mar 27, 20262,219.272,223.002,134.682,153.862,153.86-3.01%19,170
Mar 26, 20262,185.512,224.512,185.512,220.712,220.710.69%10,873
Mar 25, 20262,219.642,231.572,196.962,205.512,205.51-0.29%13,358
Mar 24, 20262,169.002,220.562,152.162,211.912,211.912.26%16,452
Mar 23, 20262,178.962,205.422,160.912,162.992,162.990.37%19,085
Mar 20, 20262,190.002,205.992,155.002,155.012,155.01-1.20%22,590
Mar 19, 20262,191.602,206.562,159.772,181.162,181.16-0.18%22,248
Mar 18, 20262,202.672,220.012,184.942,185.012,185.01-0.99%16,499
Mar 17, 20262,206.102,246.002,206.102,206.812,206.810.32%17,539
Mar 16, 20262,209.992,230.002,193.522,199.692,199.690.27%17,536
Mar 13, 20262,199.862,217.682,190.582,194.702,193.700.58%11,442
Mar 12, 20262,195.202,216.432,126.262,182.052,181.06-1.36%17,254
Mar 11, 20262,219.362,237.002,190.002,212.142,211.13-0.51%25,023
Mar 10, 20262,145.192,236.702,100.002,223.462,222.453.48%26,171
Mar 9, 20262,174.802,180.902,108.802,148.652,147.67-0.78%28,530
Mar 6, 20262,165.702,208.372,134.002,165.602,164.61-1.07%21,672
Mar 5, 20262,213.452,234.852,181.312,188.942,187.94-1.57%19,947
Mar 4, 20262,218.012,240.062,196.332,223.792,222.780.39%20,220
Mar 3, 20262,226.392,239.832,179.002,215.092,214.08-1.29%16,959
Mar 2, 20262,210.002,259.262,210.002,244.142,243.121.06%24,857
Feb 27, 20262,217.442,239.002,185.002,220.512,219.50-0.11%21,669
Feb 26, 20262,219.592,264.702,214.002,222.972,221.960.12%17,744
Feb 25, 20262,223.502,249.802,195.002,220.282,219.27-0.14%19,506
Feb 24, 20262,197.082,228.982,185.502,223.422,222.411.56%17,226
Feb 23, 20262,235.002,240.002,182.342,189.342,188.34-1.74%14,635
Feb 20, 20262,208.002,232.052,184.442,228.132,227.111.22%8,611
Feb 19, 20262,204.792,225.002,173.162,201.232,200.23-0.04%16,180
Feb 18, 20262,232.222,232.222,193.632,202.122,201.12-1.29%13,269
Feb 17, 20262,195.762,246.882,184.302,230.832,229.811.95%17,833
Feb 13, 20262,178.572,193.142,140.002,188.072,187.070.28%12,854
Feb 12, 20262,177.692,200.002,144.002,182.012,181.021.78%20,290
Feb 11, 20262,129.122,143.842,080.002,143.842,142.861.41%15,387
Feb 10, 20262,098.282,130.212,078.342,114.102,113.140.73%21,211
Feb 9, 20262,181.472,202.502,077.712,098.782,097.82-3.95%24,727
Feb 6, 20262,151.002,232.502,147.852,185.002,184.002.75%22,891
Feb 5, 20262,078.422,129.892,078.072,126.572,125.601.94%20,971
Feb 4, 20262,063.982,098.902,063.982,086.142,085.191.45%11,514
Feb 3, 20262,050.002,081.602,049.102,056.302,055.36-14,482