White Mountains Insurance Group, Ltd. (WTM) NYSE

Currency In USD

WTM Historical Return

If you invested $1000 in White Mountains Insurance Group, Ltd. (WTM) 10 years ago, it would be worth $2,431.57 as of June 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,803.99, while $1000 invested 1 year ago would be worth $1,129.05. This corresponds to total returns of 143.16%, 80.4%, 12.91%, respectively, with annualized returns of 9.29%, 12.52%, 12.91%.

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

WTM Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
June 22, 2026	2,023.03	2,010.75	2,010.75	2,035	1,999.84	13,169
June 18, 2026	1,997.36	2,013.36	2,013.36	2,019.89	1,990.78	25,485
June 17, 2026	2,021.6	2,003.49	2,003.49	2,045.5	1,990	21,196
June 16, 2026	2,037.76	2,032.37	2,032.37	2,051.66	2,010	20,369
June 15, 2026	2,026.1	2,030.64	2,030.64	2,059.62	2,000.35	31,018
June 12, 2026	1,995.5	2,024.05	2,024.05	2,030	1,991.3	17,746
June 11, 2026	2,021.1	1,989.54	1,989.54	2,041.42	1,987	17,043
June 10, 2026	2,014.35	2,018.89	2,018.89	2,037.79	2,006.15	23,503
June 09, 2026	2,029.5	2,004.76	2,004.76	2,050	1,991.29	26,468
June 08, 2026	2,060	2,023.7	2,023.7	2,070	2,020.03	28,818
June 05, 2026	2,016.8	2,065.14	2,065.14	2,084.71	2,016.8	22,318
June 04, 2026	2,035	2,015.54	2,015.54	2,065	2,010.54	29,875
June 03, 2026	2,050.81	2,034.02	2,034.02	2,066.05	2,018.29	39,988
June 02, 2026	2,060.03	2,050.81	2,050.81	2,087.91	2,050.62	23,501
June 01, 2026	2,052.25	2,062.03	2,062.03	2,077.2	2,052.25	24,247
May 29, 2026	2,093.14	2,064.82	2,064.82	2,096.55	2,060.92	25,693
May 28, 2026	2,090.39	2,084.31	2,084.31	2,106.05	2,072.01	23,512
May 27, 2026	2,138.97	2,101.94	2,101.94	2,159	2,094.47	26,949
May 26, 2026	2,140.4	2,129.17	2,129.17	2,166.05	2,129.17	16,926
May 22, 2026	2,136.84	2,146.85	2,146.85	2,159	2,136.84	16,554
May 21, 2026	2,130.13	2,139.09	2,139.09	2,152.18	2,130.03	22,424
May 20, 2026	2,152.05	2,144.81	2,144.81	2,175	2,142.5	18,203
May 19, 2026	2,127.27	2,144.19	2,144.19	2,159	2,125.02	29,147
May 18, 2026	2,139	2,138.35	2,138.35	2,177	2,121.03	17,881
May 15, 2026	2,119.07	2,136.76	2,136.76	2,149.99	2,105	21,164
May 14, 2026	2,138	2,111.18	2,111.18	2,196.09	2,096.23	23,651
May 13, 2026	2,105.14	2,120.55	2,120.55	2,150	2,105.14	18,201
May 12, 2026	2,141.68	2,109.2	2,109.2	2,162	2,099.94	22,395
May 11, 2026	2,143	2,133.58	2,133.58	2,173.11	2,110	20,958
May 08, 2026	2,103.9	2,128.4	2,128.4	2,136.45	2,075.05	18,776
May 07, 2026	2,080	2,092.5	2,092.5	2,106.28	2,050.01	26,154
May 06, 2026	2,151.3	2,080	2,080	2,175.17	2,071.88	31,824
May 05, 2026	2,173.37	2,151.67	2,151.67	2,193.71	2,147.77	17,258
May 04, 2026	2,153.87	2,167.41	2,167.41	2,203	2,132.76	26,776
May 01, 2026	2,213	2,163.5	2,163.5	2,216.52	2,158.18	19,453
April 30, 2026	2,201.09	2,231.99	2,231.99	2,235	2,190.66	10,938
April 29, 2026	2,261.29	2,206	2,206	2,270.21	2,188.44	12,698
April 28, 2026	2,284	2,263.69	2,263.69	2,303.48	2,256.57	16,529
April 27, 2026	2,260.6	2,267.56	2,267.56	2,286.66	2,245.31	15,978
April 24, 2026	2,279.54	2,259.27	2,259.27	2,279.54	2,243.94	13,485
April 23, 2026	2,283.32	2,285.39	2,285.39	2,301.53	2,268.15	9,393
April 22, 2026	2,292.87	2,269.19	2,269.19	2,292.87	2,261.1	14,692
April 21, 2026	2,278.1	2,276.34	2,276.34	2,290.97	2,261.03	10,234
April 20, 2026	2,309.96	2,275.01	2,275.01	2,326.45	2,275.01	14,113
April 17, 2026	2,292.2	2,319.41	2,319.41	2,333	2,270.05	14,192
April 16, 2026	2,290.79	2,294.72	2,294.72	2,300.5	2,273.24	10,753
April 15, 2026	2,301.1	2,291.46	2,291.46	2,310.12	2,280	15,809
April 14, 2026	2,282.2	2,300	2,300	2,318.57	2,282.2	17,461
April 13, 2026	2,280.08	2,297.99	2,297.99	2,307.25	2,254.22	14,856
April 10, 2026	2,307.1	2,301.14	2,301.14	2,307.1	2,270.62	13,109
April 09, 2026	2,277.22	2,309.92	2,309.92	2,325.78	2,255	17,084
April 08, 2026	2,235.44	2,277.21	2,277.21	2,290.66	2,205	17,636
April 07, 2026	2,192.96	2,215.73	2,215.73	2,242	2,192.96	15,948
April 06, 2026	2,169.31	2,203.96	2,203.96	2,206.24	2,067.21	27,441
April 02, 2026	2,176.4	2,169.76	2,169.76	2,191.19	2,156	17,990
April 01, 2026	2,197.2	2,178.44	2,178.44	2,206.25	2,160	22,249
March 31, 2026	2,212.63	2,196.96	2,196.96	2,224.11	2,163.41	25,094
March 30, 2026	2,164.39	2,193.86	2,193.86	2,210.86	2,150.8	14,760
March 27, 2026	2,219.27	2,153.86	2,153.86	2,223	2,134.68	19,170
March 26, 2026	2,185.51	2,220.71	2,220.71	2,224.51	2,185.51	10,873