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White Mountains Insurance Group WTM · USD

Financials · US listing · 🇺🇸 United States

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2,256.20

+0.67%

Close of 9 Nov 2026, in USD

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
DIMENSIONAL FUND ADVISORS LP156.6k6.19%+1431 Mar 2026
NEUBERGER BERMAN GROUP LLC124.7k4.93%−4.9k31 Mar 2026
RIVER ROAD ASSET MANAGEMENT, LLC120.5k4.76%−36131 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC115.6k4.56%+115.6k31 Mar 2026
BLACKROCK, INC.113.3k4.48%+1k31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC109.2k4.31%+109.2k31 Mar 2026
COOKE & BIELER LP104.9k4.14%−1.7k31 Mar 2026
FULLER & THALER ASSET MANAGEMENT, INC.104.6k4.13%−3.6k31 Mar 2026
FIDUCIARY MANAGEMENT INC /WI/85.1k3.36%−5.3k31 Mar 2026
WALLACE CAPITAL MANAGEMENT INC.78.8k3.11%−1.6k31 Mar 2026
MORGAN STANLEY59.3k2.34%−22.9k31 Mar 2026
BOSTON PARTNERS57.5k2.27%−19.5k31 Mar 2026
LONDON CO OF VIRGINIA57.1k2.26%−1.6k31 Mar 2026
STATE STREET CORP49.2k1.94%−1.5k31 Mar 2026
GEODE CAPITAL MANAGEMENT, LLC42.1k1.66%+60131 Mar 2026

Short interest

Shares sold short, 15 Oct 2026. US exchange data.

146.9k

+5.2% on the period before. 7.3 days to cover.

Short volume

Share of the day's trading sold short, 4 Nov 2026

73.6%

Last 60 trading days.

Sources and methodology

Data on this tab
Our data supplier
Chart on the Overview
TradingView

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