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 — 2014

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2014-12-31$630.11$775.067,600
2014-12-30$639.33$786.404,800
2014-12-29$643.65$791.7118,100
2014-12-26$644.11$792.282,500
2014-12-24$639.00$785.992,300
2014-12-23$638.00$784.764,800
2014-12-22$635.03$781.116,600
2014-12-19$637.01$783.5411,000
2014-12-18$638.40$785.258,400
2014-12-17$650.00$799.526,300
2014-12-16$641.03$788.498,200
2014-12-15$625.39$769.2514,700
2014-12-12$629.35$774.128,000
2014-12-11$646.98$795.817,900
2014-12-10$654.63$805.226,000
2014-12-09$660.51$812.4512,000
2014-12-08$674.71$829.9214,700
2014-12-05$658.04$809.417,000
2014-12-04$654.00$804.4413,500
2014-12-03$640.26$787.547,700
2014-12-02$635.00$781.076,400
2014-12-01$633.24$778.917,000
2014-11-28$633.77$779.563,900
2014-11-26$646.00$794.602,700
2014-11-25$641.16$788.656,500
2014-11-24$641.01$788.464,900
2014-11-21$638.00$784.766,300
2014-11-20$635.64$781.862,400
2014-11-19$633.51$779.243,600
2014-11-18$638.98$785.976,500
2014-11-17$634.68$780.685,500
2014-11-14$634.07$779.9311,000
2014-11-13$634.95$781.014,100
2014-11-12$628.72$773.358,100
2014-11-11$632.97$778.5712,900
2014-11-10$633.32$779.004,600
2014-11-07$633.47$779.198,300
2014-11-06$629.44$774.239,700
2014-11-05$623.33$766.7223,700
2014-11-04$618.62$760.9219,700
2014-11-03$623.72$767.2016,800
2014-10-31$624.92$768.6718,900
2014-10-30$620.00$762.6211,800
2014-10-29$621.75$764.776,800
2014-10-28$631.60$776.899,400
2014-10-27$627.50$771.853,500
2014-10-24$637.26$783.855,600
2014-10-23$629.50$774.317,400
2014-10-22$633.54$779.287,500
2014-10-21$639.40$786.487,200
2014-10-20$622.77$766.0322,000
2014-10-17$636.84$783.334,200
2014-10-16$626.15$770.1911,000
2014-10-15$621.19$764.0812,200
2014-10-14$632.75$778.308,600
2014-10-13$636.50$782.926,100
2014-10-10$631.15$776.3412,600
2014-10-09$627.80$772.2216,300
2014-10-08$639.04$786.048,200
2014-10-07$634.42$780.369,800
2014-10-06$640.35$787.658,300
2014-10-03$641.00$788.458,100
2014-10-02$635.24$781.3711,700
2014-10-01$628.68$773.3013,000
2014-09-30$630.07$775.016,800
2014-09-29$632.02$777.4112,800
2014-09-26$634.57$780.5410,800
2014-09-25$622.15$765.2716,500
2014-09-24$628.23$772.7413,600
2014-09-23$624.21$767.8011,800
2014-09-22$623.57$767.0111,600
2014-09-19$630.08$775.0230,300
2014-09-18$636.00$782.3011,300
2014-09-17$635.00$781.075,900
2014-09-16$637.38$784.0010,500
2014-09-15$632.90$778.4911,300
2014-09-12$632.06$777.4616,600
2014-09-11$633.67$779.4415,800
2014-09-10$638.39$785.249,800
2014-09-09$633.22$778.8821,100
2014-09-08$639.49$786.5912,300
2014-09-05$633.22$778.889,600
2014-09-04$630.80$775.919,100
2014-09-03$634.00$779.8410,100
2014-09-02$633.90$779.725,900
2014-08-29$634.24$780.147,000
2014-08-28$632.00$777.3814,300
2014-08-27$634.49$780.449,700
2014-08-26$633.70$779.476,400
2014-08-25$633.49$779.213,800
2014-08-22$633.53$779.266,900
2014-08-21$635.51$781.7012,500
2014-08-20$629.09$773.8017,500
2014-08-19$631.95$777.327,100
2014-08-18$628.75$773.389,800
2014-08-15$631.00$776.156,000
2014-08-14$634.29$780.2012,200
2014-08-13$627.60$771.9769,200
2014-08-12$631.84$777.187,600
2014-08-11$634.96$781.028,200
2014-08-08$631.40$776.646,800
2014-08-07$620.65$763.4213,100
2014-08-06$625.26$769.0911,000
2014-08-05$618.00$760.169,600
2014-08-04$620.90$763.7315,400
2014-08-01$605.92$745.3013,000
2014-07-31$604.91$744.0616,600
2014-07-30$613.00$754.0110,800
2014-07-29$613.10$754.1314,300
2014-07-28$614.08$755.346,700
2014-07-25$608.99$749.084,300
2014-07-24$610.09$750.439,700
2014-07-23$608.95$749.0330,400
2014-07-22$606.38$745.873,700
2014-07-21$611.79$752.527,000
2014-07-18$618.01$760.173,700
2014-07-17$618.01$760.174,800
2014-07-16$621.00$763.8512,100
2014-07-15$621.00$763.856,700
2014-07-14$616.38$758.178,800
2014-07-11$613.11$754.158,900
2014-07-10$611.00$751.556,300
2014-07-09$610.01$750.335,300
2014-07-08$607.02$746.6616,300
2014-07-07$608.74$748.776,000
2014-07-03$608.85$748.917,900
2014-07-02$608.15$748.057,300
2014-07-01$606.50$746.025,600
2014-06-30$608.44$748.406,900
2014-06-27$607.95$747.8011,300
2014-06-26$606.00$745.4012,000
2014-06-25$604.00$742.9415,100
2014-06-24$600.24$738.3212,100
2014-06-23$600.00$738.025,600
2014-06-20$599.00$736.7912,200
2014-06-19$599.88$737.8716,800
2014-06-18$599.48$737.389,700
2014-06-17$600.43$738.555,500
2014-06-16$599.10$736.919,700
2014-06-13$600.66$738.8313,000
2014-06-12$600.81$739.028,900
2014-06-11$598.00$735.5611,100
2014-06-10$599.47$737.3717,500
2014-06-09$599.01$736.8010,500
2014-06-06$599.00$736.798,500
2014-06-05$594.99$731.865,300
2014-06-04$594.02$730.664,100
2014-06-03$590.00$725.723,100
2014-06-02$591.13$727.119,800
2014-05-30$590.52$726.368,400
2014-05-29$592.31$728.564,600
2014-05-28$590.00$725.726,100
2014-05-27$589.07$724.585,900
2014-05-23$589.10$724.6112,500
2014-05-22$589.43$725.0210,300
2014-05-21$589.23$724.7710,300
2014-05-20$588.07$723.357,500
2014-05-19$593.70$730.275,400
2014-05-16$589.29$724.859,200
2014-05-15$589.94$725.6515,600
2014-05-14$587.68$722.8716,800
2014-05-13$591.18$727.1713,500
2014-05-12$595.00$731.878,800
2014-05-09$592.17$728.3911,600
2014-05-08$595.95$733.0420,000
2014-05-07$597.91$735.4535,000
2014-05-06$592.59$728.9111,600
2014-05-05$594.39$731.1213,300
2014-05-02$599.61$737.5413,600
2014-05-01$597.46$734.9016,900
2014-04-30$596.26$733.4223,000
2014-04-29$591.54$727.6122,600
2014-04-28$587.85$723.0820,600
2014-04-25$590.00$725.7229,600
2014-04-24$597.80$735.319,500
2014-04-23$602.10$740.6012,800
2014-04-22$599.29$737.1518,100
2014-04-21$599.05$736.8517,700
2014-04-17$598.41$736.0612,200
2014-04-16$596.47$733.6827,300
2014-04-15$591.10$727.0723,100
2014-04-14$591.97$728.1416,000
2014-04-11$592.62$728.9426,100
2014-04-10$585.91$720.6921,500
2014-04-09$595.05$731.9326,900
2014-04-08$595.00$731.8727,100
2014-04-07$594.10$730.7618,500
2014-04-04$596.00$733.1021,900
2014-04-03$597.67$735.1523,300
2014-04-02$597.69$735.1815,900
2014-04-01$595.15$732.0515,800
2014-03-31$599.90$737.9019,100
2014-03-28$592.54$728.8418,700
2014-03-27$590.06$725.7927,800
2014-03-26$596.00$733.1025,700
2014-03-25$591.09$727.0630,400
2014-03-24$584.58$719.0523,900
2014-03-21$586.92$721.9361,300
2014-03-20$583.23$717.3929,200
2014-03-19$579.85$713.2430,600
2014-03-18$583.25$717.4219,900
2014-03-17$577.40$710.228,800
2014-03-14$577.78$710.6913,800
2014-03-13$575.88$708.3537,700
2014-03-12$583.38$716.3522,500
2014-03-11$582.05$714.7131,500
2014-03-10$585.98$719.5425,200
2014-03-07$581.97$714.6238,100
2014-03-06$579.16$711.1751,400
2014-03-05$580.88$713.2810,300
2014-03-04$578.16$709.9418,200
2014-03-03$578.00$709.7421,900
2014-02-28$579.56$711.667,700
2014-02-27$579.51$711.608,200
2014-02-26$576.75$708.219,400
2014-02-25$578.67$710.5613,200
2014-02-24$579.19$711.2014,400
2014-02-21$583.76$716.8112,700
2014-02-20$585.50$718.9512,400
2014-02-19$579.13$711.1320,000
2014-02-18$577.92$709.6417,400
2014-02-14$578.58$710.4510,100
2014-02-13$583.59$716.6117,300
2014-02-12$583.46$716.4512,300
2014-02-11$580.49$712.8046,700
2014-02-10$582.00$714.6531,400
2014-02-07$579.69$711.8220,100
2014-02-06$565.93$694.9212,000
2014-02-05$563.00$691.3229,400
2014-02-04$559.26$686.7319,300
2014-02-03$561.61$689.628,200
2014-01-31$564.70$693.4113,500
2014-01-30$573.31$703.9812,800
2014-01-29$575.00$706.0625,100
2014-01-28$588.92$723.158,300
2014-01-27$587.65$721.5911,400
2014-01-24$588.47$722.6016,500
2014-01-23$594.85$730.4313,500
2014-01-22$593.75$729.086,800
2014-01-21$592.91$728.059,600
2014-01-17$592.78$727.896,300
2014-01-16$590.70$725.3410,000
2014-01-15$592.73$727.836,000
2014-01-14$590.45$725.039,900
2014-01-13$589.05$723.315,200
2014-01-10$590.54$725.1412,100
2014-01-09$589.87$724.3211,500
2014-01-08$596.73$732.7422,000
2014-01-07$594.69$730.249,500
2014-01-06$589.00$723.2512,000
2014-01-03$593.82$729.1710,700
2014-01-02$600.86$737.819,900