As of August 28, 2026, White Mountains Insurance Group, Ltd. (WTM) has a DilutionWatch DilutionScore of 11/100, rated LOW dilution risk. This is a component-limited score because one or more material inputs are unavailable or not applicable. White Mountains Insurance Group, Ltd. has a market capitalization of $5.11B, 2.39M shares outstanding, 369 institutional holders tracked.
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Score Breakdown
💰Cash Runway—
Dilution Forecast
☀️
Clear
No significant dilution signals
model est. 0%
No significant dilution signals detected for WTM.
Market Data
Market Cap$5.11B
Shares Outstanding2.39M
Float2.37M
Cash$922.90M
Debt$932.50M
Short InterestN/A
Institutional Holdings
QoQ: ↑ 8.3% shares (2026Q1 vs prior)
369 institutional holders · 2.64M shares
#1
MORGAN STANLEY
280.3K shares
#2
VANGUARD CAPITAL MANAGEMENT LLC
218.3K shares
#3
DIMENSIONAL FUND ADVISORS LP
156.6K shares
Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.
Short Interest
Short Interest137.0K
Days to Cover8.5
% of Float5.8%
FINRA data as of Jul 31, 2026
Recent SEC Activity
No recent SEC insights
Recent News
No recent news
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Score Coverage Note
- Cash Runway is marked not applicable or unavailable while debt exceeds cash in stored market data; do not read the overall score as a complete balance-sheet risk assessment.