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White Mountains Insurance Group, Ltd. (WTM)
NYSE: WTM · Real-Time Price · USD
2,118.92
-46.68 (-2.16%)
Mar 9, 2026, 1:50 PM EDT - Market open

WTM Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Mar 9, 20262,174.802,180.902,108.802,128.32--1.72%15,268
Mar 6, 20262,165.702,208.372,134.002,165.602,165.60-1.07%21,672
Mar 5, 20262,213.452,234.852,181.312,188.942,188.94-1.57%19,947
Mar 4, 20262,218.012,240.062,196.332,223.792,223.790.39%20,220
Mar 3, 20262,226.392,239.832,179.002,215.092,215.09-1.29%16,959
Mar 2, 20262,210.002,259.262,210.002,244.142,244.141.06%24,855
Feb 27, 20262,217.442,239.002,185.002,220.512,220.51-0.11%21,523
Feb 26, 20262,219.592,264.702,214.002,222.972,222.970.12%17,744
Feb 25, 20262,223.502,249.802,195.002,220.282,220.28-0.14%19,506
Feb 24, 20262,197.082,228.982,185.502,223.422,223.421.56%17,226
Feb 23, 20262,235.002,240.002,182.342,189.342,189.34-1.74%14,635
Feb 20, 20262,208.002,232.052,184.442,228.132,228.131.22%8,609
Feb 19, 20262,204.792,225.002,173.162,201.232,201.23-0.04%16,180
Feb 18, 20262,232.222,232.222,193.632,202.122,202.12-1.29%13,267
Feb 17, 20262,195.762,246.882,184.302,230.832,230.831.95%17,833
Feb 13, 20262,178.572,193.142,140.002,188.072,188.070.28%12,854
Feb 12, 20262,177.692,200.002,144.002,182.012,182.011.78%20,290
Feb 11, 20262,129.122,143.842,080.002,143.842,143.841.41%15,387
Feb 10, 20262,098.282,130.212,078.342,114.102,114.100.73%21,192
Feb 9, 20262,181.472,202.502,077.712,098.782,098.78-3.95%24,727
Feb 6, 20262,151.002,232.502,147.852,185.002,185.002.75%22,891
Feb 5, 20262,078.422,129.892,078.072,126.572,126.571.94%20,969
Feb 4, 20262,063.982,098.902,063.982,086.142,086.141.45%11,514
Feb 3, 20262,050.002,081.602,049.102,056.302,056.30-14,482
Feb 2, 20262,044.802,061.032,035.012,056.362,056.360.56%13,914
Jan 30, 20262,056.772,065.332,038.152,044.932,044.93-0.35%22,180
Jan 29, 20262,047.292,063.222,014.012,052.172,052.170.64%15,892
Jan 28, 20262,052.442,066.002,034.852,039.192,039.19-0.65%18,493
Jan 27, 20262,071.372,071.372,039.922,052.442,052.44-1.18%16,985
Jan 26, 20262,060.002,091.902,054.102,076.932,076.930.99%12,999
Jan 23, 20262,072.022,076.382,049.632,056.642,056.64-0.74%8,549
Jan 22, 20262,084.992,098.892,054.872,071.972,071.97-0.09%13,392
Jan 21, 20262,050.352,085.002,040.002,073.852,073.851.39%18,866
Jan 20, 20262,043.272,074.002,020.002,045.452,045.45-0.53%14,296
Jan 16, 20262,061.642,068.002,037.982,056.362,056.36-0.27%16,423
Jan 15, 20262,084.562,098.882,059.712,061.922,061.92-0.72%14,207
Jan 14, 20262,056.062,081.932,052.492,076.962,076.960.92%15,267
Jan 13, 20262,054.632,085.702,028.902,057.992,057.99-0.14%15,911
Jan 12, 20262,040.622,075.732,028.002,060.842,060.840.60%13,888
Jan 9, 20262,071.722,095.722,043.512,048.452,048.45-1.26%16,538
Jan 8, 20262,063.512,083.002,017.852,074.492,074.490.73%22,723
Jan 7, 20262,040.432,068.062,010.002,059.542,059.540.60%16,137
Jan 6, 20262,008.042,056.102,003.972,047.312,047.31-0.75%31,205
Jan 5, 20262,036.762,072.002,032.002,062.862,062.861.03%17,438
Jan 2, 20262,083.562,089.502,027.272,041.902,041.90-1.74%23,317
Dec 31, 20252,081.942,099.422,069.192,078.032,078.03-0.03%14,059
Dec 30, 20252,076.002,143.252,070.002,078.622,078.620.15%14,222
Dec 29, 20252,069.532,081.292,057.932,075.532,075.530.64%11,718
Dec 26, 20252,092.862,110.432,054.892,062.342,062.34-1.23%15,842
Dec 24, 20252,091.002,100.002,070.952,088.052,088.05-0.14%7,675
Dec 23, 20252,082.942,115.002,078.062,090.902,090.900.37%22,397
Dec 22, 20252,026.202,097.132,015.102,083.142,083.142.01%22,950
Dec 19, 20252,038.152,048.022,038.002,042.022,042.020.10%20,304
Dec 18, 20252,062.942,098.802,036.002,040.002,040.00-0.32%16,929
Dec 17, 20252,049.662,053.162,037.602,046.652,046.650.07%21,769
Dec 16, 20252,068.582,092.002,027.832,045.312,045.31-1.11%29,731
Dec 15, 20252,059.622,072.222,051.502,068.172,068.170.66%21,756
Dec 12, 20252,043.852,054.852,035.442,054.512,054.510.47%13,719
Dec 11, 20252,057.592,127.972,032.302,044.872,044.870.19%30,522
Dec 10, 20252,021.462,045.502,014.692,040.942,040.941.10%23,895
Dec 9, 20252,024.212,038.002,010.002,018.752,018.750.26%25,383
Dec 8, 20252,033.002,097.492,013.112,013.522,013.52-1.05%23,327
Dec 5, 20252,026.302,046.182,019.002,034.792,034.79-0.15%27,360
Dec 4, 20252,023.002,050.902,020.052,037.792,037.790.60%17,755
Dec 3, 20252,030.962,039.792,013.292,025.552,025.55-0.09%16,714
Dec 2, 20252,025.202,041.502,022.302,027.412,027.410.12%25,833
Dec 1, 20252,028.222,048.772,018.272,024.892,024.890.03%15,245
Nov 28, 20252,030.442,042.892,023.452,024.252,024.25-0.24%9,320
Nov 26, 20252,005.002,037.352,004.182,029.062,029.061.27%13,500
Nov 25, 20252,000.842,030.402,000.002,003.652,003.650.33%14,533
Nov 24, 20251,992.822,002.351,961.001,996.991,996.99-0.15%24,563
Nov 21, 20251,959.002,013.051,959.002,000.002,000.006.29%26,636
Nov 20, 20251,901.551,913.001,875.501,881.611,881.61-0.41%26,310
Nov 19, 20251,901.301,909.891,870.001,889.301,889.30-0.58%20,702
Nov 18, 20251,900.771,918.001,900.011,900.341,900.340.02%21,047
Nov 17, 20251,931.891,943.461,900.001,900.001,900.00-1.28%13,610
Nov 14, 20251,905.001,934.991,902.001,924.671,924.670.50%20,109
Nov 13, 20251,929.381,941.131,911.421,915.091,915.09-1.00%18,377
Nov 12, 20251,930.551,949.891,915.461,934.471,934.470.49%16,488
Nov 11, 20251,906.901,935.391,902.001,925.011,925.011.22%15,829
Nov 10, 20251,905.801,921.051,899.581,901.761,901.76-0.35%19,348
Nov 7, 20251,895.001,928.751,893.021,908.461,908.460.87%25,051
Nov 6, 20251,901.101,923.741,888.001,892.021,892.02-0.28%30,319
Nov 5, 20251,897.961,925.901,894.241,897.421,897.42-1.21%17,184
Nov 4, 20251,900.201,929.201,891.831,920.601,920.601.09%28,177
Nov 3, 20251,900.751,917.751,863.601,899.871,899.87-0.25%36,682
Oct 31, 20251,902.431,920.001,890.001,904.561,904.56-0.13%27,799
Oct 30, 20251,905.201,930.501,903.251,907.001,907.000.47%19,318
Oct 29, 20251,914.541,914.541,897.231,897.991,897.99-0.17%22,290
Oct 28, 20251,909.001,925.001,898.961,901.301,901.30-1.63%29,455
Oct 27, 20251,917.001,941.891,917.001,932.901,932.900.87%23,578
Oct 24, 20251,950.001,957.681,908.541,916.141,916.14-1.12%26,712
Oct 23, 20251,911.001,946.401,900.261,937.931,937.931.88%30,222
Oct 22, 20251,916.001,927.731,900.821,902.191,902.19-0.97%24,507
Oct 21, 20251,931.621,945.001,920.911,920.911,920.91-0.59%17,071
Oct 20, 20251,926.001,940.711,926.001,932.231,932.230.99%19,132
Oct 17, 20251,830.131,917.381,830.131,913.201,913.203.55%32,740
Oct 16, 20251,887.111,893.061,836.711,847.671,847.67-2.34%36,108
Oct 15, 20251,931.791,939.501,890.291,892.011,892.01-2.12%36,283
Oct 14, 20251,913.501,936.541,907.021,933.011,933.011.56%23,331