WTM · White Mountains Insurance Group Ltd · Off Exchange

$2,258.49 -35.68 (-1.56%)

Russell 1000 member Rebalance outlook locked

Market Cap

$5.48B

2.39M

Volume · Nov 6 8325 Avg daily vol (3M) 21.77K

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start	ATS Volume	Non-ATS OTC Volume	Total Off-Exchange	% of FINRA Weekly Volume
2026-09-28	19,559	11,628	31,187	42.1%
2026-09-21	14,556	12,517	27,073	40.2%
2026-09-14	31,903	20,851	52,754	39.7%
2026-09-07	22,202	11,155	33,357	35.6%
2026-08-31	24,733	16,826	41,559	37.5%
2026-08-24	18,839	18,042	36,881	40.4%
2026-08-17	25,916	17,909	43,825	39.6%
2026-08-10	23,025	23,471	46,496	39.3%
2026-08-03	26,570	26,647	53,217	43.6%
2026-07-27	25,190	19,206	44,396	50.0%
2026-07-20	17,820	7,730	25,550	36.5%
2026-07-13	27,530	7,411	34,941	40.5%
2026-07-06	27,207	7,714	34,921	38.1%
2026-06-29	18,357	7,403	25,760	35.3%
2026-06-22	21,502	9,845	31,347	37.3%
2026-06-15	25,203	11,339	36,542	37.0%
2026-06-08	27,411	12,557	39,968	35.1%
2026-06-01	31,438	18,774	50,212	34.7%
2026-05-25	15,041	14,396	29,437	31.3%
2026-05-18	20,592	10,528	31,120	29.9%
2026-05-11	24,776	8,312	33,088	28.7%
2026-05-04	25,134	13,843	38,977	30.6%
2026-04-27	14,789	9,374	24,163	32.0%
2026-04-20	11,751	9,027	20,778	32.6%
2026-04-13	15,019	14,420	29,439	40.1%
2026-04-06	18,439	13,477	31,916	32.6%
2026-03-30	19,841	11,828	31,669	39.5%
2026-03-23	16,874	8,255	25,129	31.8%
2026-03-16	18,596	10,219	28,815	29.9%
2026-03-09	21,811	24,351	46,162	42.6%
2026-03-02	27,506	21,201	48,707	47.0%
2026-02-23	20,750	25,234	45,984	50.7%
2026-02-16	15,000	12,959	27,959	50.0%
2026-02-09	26,152	20,476	46,628	49.3%
2026-02-02	24,569	14,622	39,191	46.8%
2026-01-26	21,819	12,125	33,944	39.2%
2026-01-19	10,245	18,116	28,361	51.4%
2026-01-12	17,889	17,275	35,164	45.9%
2026-01-05	19,731	24,293	44,024	42.4%
2025-12-29	11,775	16,955	28,730	45.4%
2025-12-22	16,329	15,073	31,402	45.6%
2025-12-15	27,681	13,634	41,315	36.5%
2025-12-08	32,999	14,730	47,729	40.9%
2025-12-01	24,619	11,859	36,478	35.4%
2025-11-24	15,758	11,396	27,154	44.1%
2025-11-17	23,783	30,653	54,436	50.3%
2025-11-10	25,670	15,303	40,973	45.5%

Showing 1–47 of 47 weeks

Key facts CIK 776867 CUSIP G9618E107 13F (30d) 173 filings 145 filers Visit website Investor relations