NYSE:WTM | Historical Stock Price | WHITE MOUNTAINS INSURANCE GROUP LTD

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1985-10-23 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$22.92$60.30$158.65$417.40$1,098.17$2,889.271985-10-232026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$1,945.06$2,417.757,600
2024-12-30$1,929.22$2,398.066,100
2024-12-27$1,918.73$2,385.028,000
2024-12-26$1,935.39$2,405.736,900
2024-12-24$1,930.58$2,399.755,300
2024-12-23$1,907.49$2,371.0512,400
2024-12-20$1,930.90$2,400.1529,400
2024-12-19$1,884.66$2,342.6711,400
2024-12-18$1,895.54$2,356.2024,800
2024-12-17$1,934.49$2,404.6116,700
2024-12-16$1,929.16$2,397.9925,000
2024-12-13$1,954.60$2,429.6126,800
2024-12-12$1,962.19$2,439.049,100
2024-12-11$1,970.95$2,449.9311,100
2024-12-10$1,922.97$2,390.298,600
2024-12-09$1,977.17$2,457.666,600
2024-12-06$1,987.86$2,470.9515,900
2024-12-05$1,985.02$2,467.425,300
2024-12-04$1,989.31$2,472.7615,900
2024-12-03$1,984.48$2,466.759,900
2024-12-02$2,007.64$2,495.546,800
2024-11-29$2,009.99$2,498.464,200
2024-11-27$2,013.51$2,502.845,800
2024-11-26$2,004.53$2,491.679,800
2024-11-25$2,015.00$2,504.699,700
2024-11-22$1,988.34$2,471.556,800
2024-11-21$1,971.32$2,450.397,400
2024-11-20$1,944.99$2,417.669,700
2024-11-19$1,907.29$2,370.8013,700
2024-11-18$1,897.74$2,358.935,900
2024-11-15$1,918.90$2,385.2310,400
2024-11-14$1,923.43$2,390.8619,100
2024-11-13$1,911.77$2,376.3713,400
2024-11-12$1,901.49$2,363.5919,700
2024-11-11$1,909.95$2,374.1112,900
2024-11-08$1,865.55$2,318.9220,800
2024-11-07$1,881.08$2,338.2220,200
2024-11-06$1,885.69$2,343.9516,700
2024-11-05$1,778.57$2,210.8010,900
2024-11-04$1,774.07$2,205.218,900
2024-11-01$1,805.30$2,244.0317,400
2024-10-31$1,797.14$2,233.8815,300
2024-10-30$1,821.82$2,264.568,900
2024-10-29$1,820.19$2,262.5411,100
2024-10-28$1,814.87$2,255.9218,200
2024-10-25$1,815.94$2,257.256,300
2024-10-24$1,844.29$2,292.4920,700
2024-10-23$1,831.98$2,277.1910,000
2024-10-22$1,843.24$2,291.1911,500
2024-10-21$1,830.98$2,275.956,300
2024-10-18$1,875.00$2,330.679,900
2024-10-17$1,884.61$2,342.6111,900
2024-10-16$1,824.07$2,267.369,200
2024-10-15$1,829.85$2,274.545,600
2024-10-14$1,848.76$2,298.056,300
2024-10-11$1,821.00$2,263.549,200
2024-10-10$1,811.19$2,251.358,300
2024-10-09$1,803.03$2,241.215,800
2024-10-08$1,784.90$2,218.676,000
2024-10-07$1,768.00$2,197.6620,600
2024-10-04$1,776.21$2,207.874,000
2024-10-03$1,758.74$2,186.157,700
2024-10-02$1,755.01$2,181.528,900
2024-10-01$1,768.10$2,197.7911,700
2024-09-30$1,696.20$2,108.4110,800
2024-09-27$1,701.00$2,114.386,700
2024-09-26$1,705.07$2,119.449,000
2024-09-25$1,704.49$2,118.729,800
2024-09-24$1,713.95$2,130.488,300
2024-09-23$1,731.00$2,151.6710,300
2024-09-20$1,723.93$2,142.8812,600
2024-09-19$1,722.06$2,140.5613,000
2024-09-18$1,687.79$2,097.9620,400
2024-09-17$1,704.67$2,118.9413,400
2024-09-16$1,713.98$2,130.5111,500
2024-09-13$1,725.49$2,144.8216,000
2024-09-12$1,710.10$2,125.6911,700
2024-09-11$1,719.01$2,136.7712,500
2024-09-10$1,757.64$2,184.787,500
2024-09-09$1,757.42$2,184.517,100
2024-09-06$1,757.51$2,184.626,400
2024-09-05$1,765.74$2,194.8512,500
2024-09-04$1,831.72$2,276.8710,400
2024-09-03$1,823.43$2,266.5610,700
2024-08-30$1,844.24$2,292.4317,800
2024-08-29$1,817.49$2,259.1811,000
2024-08-28$1,793.40$2,229.2315,700
2024-08-27$1,778.68$2,210.945,700
2024-08-26$1,774.55$2,205.8013,400
2024-08-23$1,782.77$2,216.028,700
2024-08-22$1,807.72$2,247.037,400
2024-08-21$1,817.13$2,258.7311,500
2024-08-20$1,773.91$2,205.0110,100
2024-08-19$1,791.74$2,227.177,900
2024-08-16$1,780.00$2,212.5812,900
2024-08-15$1,705.00$2,119.357,800
2024-08-14$1,698.48$2,111.259,800
2024-08-13$1,671.79$2,078.076,400
2024-08-12$1,675.10$2,082.195,900
2024-08-09$1,701.48$2,114.989,200
2024-08-08$1,700.00$2,113.1411,000
2024-08-07$1,722.26$2,140.8114,500
2024-08-06$1,753.47$2,179.608,300
2024-08-05$1,770.49$2,200.768,800
2024-08-02$1,803.36$2,241.628,200
2024-08-01$1,782.01$2,215.0810,000
2024-07-31$1,786.00$2,220.049,400
2024-07-30$1,764.24$2,192.9910,700
2024-07-29$1,729.82$2,150.2010,900
2024-07-26$1,750.18$2,175.5110,700
2024-07-25$1,703.00$2,116.879,100
2024-07-24$1,708.59$2,123.817,200
2024-07-23$1,735.37$2,157.107,100
2024-07-22$1,736.15$2,158.078,400
2024-07-19$1,724.84$2,144.018,700
2024-07-18$1,724.84$2,144.018,400
2024-07-17$1,747.78$2,172.5318,100
2024-07-16$1,747.24$2,171.8611,400
2024-07-15$1,728.09$2,148.0513,100
2024-07-12$1,717.50$2,134.898,400
2024-07-11$1,732.00$2,152.919,400
2024-07-10$1,719.60$2,137.5014,000
2024-07-09$1,736.00$2,157.8912,900
2024-07-08$1,741.76$2,165.0516,300
2024-07-05$1,719.40$2,137.2521,900
2024-07-03$1,723.06$2,141.8010,400
2024-07-02$1,757.01$2,184.009,500
2024-07-01$1,764.00$2,192.6929,500
2024-06-28$1,817.45$2,259.1380,100
2024-06-27$1,768.03$2,197.7025,900
2024-06-26$1,735.42$2,157.1635,900
2024-06-25$1,778.25$2,210.4040,900
2024-06-24$1,796.02$2,232.4929,700
2024-06-21$1,829.67$2,274.3222,600
2024-06-20$1,842.76$2,290.5913,700
2024-06-18$1,823.89$2,267.1320,100
2024-06-17$1,786.22$2,220.3115,900
2024-06-14$1,758.44$2,185.7815,900
2024-06-13$1,753.11$2,179.1523,100
2024-06-12$1,752.85$2,178.8316,100
2024-06-11$1,727.16$2,146.9012,600
2024-06-10$1,727.20$2,146.9514,000
2024-06-07$1,756.82$2,183.7610,200
2024-06-06$1,751.55$2,177.2110,000
2024-06-05$1,741.58$2,164.828,700
2024-06-04$1,732.85$2,153.9710,100
2024-06-03$1,780.26$2,212.908,000
2024-05-31$1,807.00$2,246.1417,900
2024-05-30$1,772.02$2,202.667,100
2024-05-29$1,748.86$2,173.8719,900
2024-05-28$1,714.93$2,131.6910,500
2024-05-24$1,730.13$2,150.597,900
2024-05-23$1,718.81$2,136.5210,900
2024-05-22$1,774.41$2,205.636,200
2024-05-21$1,778.99$2,211.327,700
2024-05-20$1,762.00$2,190.2010,100
2024-05-17$1,764.57$2,193.407,100
2024-05-16$1,736.32$2,158.2811,900
2024-05-15$1,770.00$2,200.1516,300
2024-05-14$1,757.27$2,184.3214,500
2024-05-13$1,800.02$2,237.468,200
2024-05-10$1,845.92$2,294.5210,100
2024-05-09$1,864.24$2,317.2910,200
2024-05-08$1,871.40$2,326.1910,500
2024-05-07$1,860.01$2,312.0314,900
2024-05-06$1,855.24$2,306.1010,700
2024-05-03$1,802.57$2,240.6313,300
2024-05-02$1,825.00$2,268.515,800
2024-05-01$1,823.74$2,266.959,600
2024-04-30$1,778.14$2,210.279,900
2024-04-29$1,768.43$2,198.207,800
2024-04-26$1,768.38$2,198.136,400
2024-04-25$1,784.11$2,217.698,200
2024-04-24$1,766.95$2,196.369,600
2024-04-23$1,721.48$2,139.847,600
2024-04-22$1,742.00$2,165.3414,700
2024-04-19$1,791.19$2,226.496,700
2024-04-18$1,742.07$2,165.436,500
2024-04-17$1,705.05$2,119.415,800
2024-04-16$1,709.10$2,124.458,100
2024-04-15$1,694.83$2,106.716,600
2024-04-12$1,688.80$2,099.214,500
2024-04-11$1,701.01$2,114.396,400
2024-04-10$1,736.97$2,159.097,400
2024-04-09$1,739.56$2,162.315,900
2024-04-08$1,764.08$2,192.797,400
2024-04-05$1,773.10$2,204.007,300
2024-04-04$1,739.25$2,161.937,100
2024-04-03$1,746.35$2,170.7514,900
2024-04-02$1,754.00$2,180.2610,100
2024-04-01$1,770.11$2,200.287,700
2024-03-28$1,794.30$2,230.358,000
2024-03-27$1,802.99$2,241.166,100
2024-03-26$1,779.96$2,212.536,700
2024-03-25$1,779.96$2,212.537,700
2024-03-22$1,779.43$2,211.877,800
2024-03-21$1,805.80$2,244.657,700
2024-03-20$1,841.88$2,289.507,500
2024-03-19$1,805.70$2,244.526,000
2024-03-18$1,773.18$2,204.1010,600
2024-03-15$1,789.00$2,223.7713,400
2024-03-14$1,739.76$2,162.569,300
2024-03-13$1,736.49$2,158.497,100
2024-03-12$1,744.96$2,169.027,800
2024-03-11$1,727.99$2,147.938,000
2024-03-08$1,722.93$2,141.648,000
2024-03-07$1,775.99$2,206.355,700
2024-03-06$1,775.99$2,206.356,200
2024-03-05$1,740.00$2,161.646,900
2024-03-04$1,775.89$2,206.235,600
2024-03-01$1,740.20$2,161.8910,200
2024-02-29$1,765.44$2,193.2411,300
2024-02-28$1,777.47$2,208.195,500
2024-02-27$1,766.99$2,195.1710,200
2024-02-26$1,782.85$2,214.877,300
2024-02-23$1,771.92$2,201.297,200
2024-02-22$1,764.61$2,192.217,600
2024-02-21$1,777.30$2,207.985,800
2024-02-20$1,765.00$2,192.7010,400
2024-02-16$1,809.67$2,248.1911,800
2024-02-15$1,762.00$2,188.9711,300
2024-02-14$1,732.84$2,152.7411,200
2024-02-13$1,699.07$2,110.7913,200
2024-02-12$1,671.51$2,076.5510,700
2024-02-09$1,628.93$2,023.658,500
2024-02-08$1,595.00$1,981.5010,800
2024-02-07$1,581.00$1,964.118,600
2024-02-06$1,574.99$1,956.647,700
2024-02-05$1,592.00$1,977.785,200
2024-02-02$1,599.41$1,986.986,600
2024-02-01$1,611.27$2,001.7212,500
2024-01-31$1,575.97$1,957.8611,000
2024-01-30$1,604.67$1,993.526,600
2024-01-29$1,592.81$1,978.787,800
2024-01-26$1,596.80$1,983.7411,200
2024-01-25$1,595.00$1,981.5011,400
2024-01-24$1,585.31$1,969.467,200
2024-01-23$1,601.10$1,989.0810,700
2024-01-22$1,649.39$2,049.075,900
2024-01-19$1,638.00$2,034.929,400
2024-01-18$1,629.44$2,024.297,300
2024-01-17$1,593.16$1,979.227,500
2024-01-16$1,567.99$1,947.956,500
2024-01-12$1,531.45$1,902.557,500
2024-01-11$1,527.17$1,897.244,700
2024-01-10$1,513.91$1,880.765,800
2024-01-09$1,498.65$1,861.814,400
2024-01-08$1,495.06$1,857.356,100
2024-01-05$1,475.00$1,832.426,500
2024-01-04$1,507.16$1,872.3810,300
2024-01-03$1,501.99$1,865.958,000
2024-01-02$1,509.97$1,875.877,900