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$WTM

White Mountains Insurance Group Ltd.

XNYS

$2142.59+1.45%+$30.68Prev $2111.91LIVE Full chart Live alerts
No recent price bars, the chart lights up when WTM starts printing.

Why is WTM up today? It is at $2142.59 (+1.45%), and our scanner flagged it 5 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment WTM spikes, and full due diligence on WTM — key stats, earnings, dilution and insider activity. Free.

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Our scanner flagged $WTM 5 times in the last 30 days. Create a free account to track $WTM, build a watchlist, and get instant unusual-volume alerts — plus 5 free premium days, no card needed.

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Key Stats

Price & performance
Price
$2142.59
Change today
+1.45%
Previous close
$2111.91
52-week range
$1648.00 – $2333.00
Valuation & dividend
Market cap
$5.23B
Dividend yield
0.05% ($1.00)
Ownership & volume
Insider ownership
3.0%
DEF 14A · 2026-04-01
Institutional own.
99.35%
Total held
100.0%
Avg daily volume
22K
Classification
Exchange
XNYS
Relative volumevs this time of day
5m
1.2x
15m
1.4x
1hthin
1.2x
1D
0.0x

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Why is $WTM up today?

SEC filing

Here is the latest on WTM from our scanner (live price and day move above). Fresh from the SEC: WHITE MOUNTAINS INSURANCE GROUP LTD filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.

Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →
Why is $WTM moving? →▶ Replay the moveAuto-generated from live scanner data. Not investment advice.
Trading profile⚡ Ultra-low floatShortableEasy to borrowNo SSRBorrow via Alpaca · SSR from Reg SHO 201

Insiders

Insiders buying9 buys, 0 sells last 3 months (14/12 over 12 months)
Show 12 recent transactions
InsiderActionShares% of positionOwns afterValueDate
Campbell Reid Tarlton
Director
Acquired (grant/award)+135added 1.3%11Kn/aMay 21, 26
Carlson Peter M
Director
Acquired (grant/award)+135added 19%852n/aMay 21, 26
Choksi Mary C
Director
Acquired (grant/award)+135added 7.3%2Kn/aMay 21, 26
Chu John
Director
Acquired (grant/award)+135added 68%335n/aMay 21, 26
Dillon Margaret
Director
Acquired (grant/award)+135added 14%1Kn/aMay 21, 26
Gelston Philip A
Director
Acquired (grant/award)+135added 8.6%2Kn/aMay 21, 26
Hicks Weston M
Director
Acquired (grant/award)+190added 6.9%3Kn/aMay 21, 26
Shank Suzanne F.
Director
Acquired (grant/award)+135added 15%1Kn/aMay 21, 26
Tanner David Allen
Director
Acquired (grant/award)+135added 7.2%2Kn/aMay 21, 26
Seelig Robert Lawrence
Officer
Sold (automatic/other)-50sold 0.3%18Kn/aMar 19, 26
Tanner David Allen
Director
Sold (automatic/other)-225sold 11%2Kn/aMar 4, 26
Seelig Robert Lawrence
Officer
Acquired (grant/award)+775
0.03% of company
added 45%3Kn/aFeb 25, 26

Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.

$WTM Sentiment

Bullish
Bearish82Bullish
📰 News: 2 bull · 0 bearToday: +1.5%👥 Community: 0 bull · 0 bear

Blend of news sentiment, today’s move, and community votes. Not investment advice.

$WTM Activity

News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.

Also moving today

The tickers our scanner is lighting up most over the last 48 hours.

WTM stock FAQ

Why is $WTM up today?

Here is the latest on WTM from our scanner (live price and day move above). Fresh from the SEC: WHITE MOUNTAINS INSURANCE GROUP LTD filed a Quarterly report (10-Q). A material company disclosure like this is often the real catalyst behind a move of this size.

What is the WTM stock price today?

WTM last traded at $2142.59, up 1.45% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).

Does WTM pay a dividend?

Yes. WTM currently has a dividend yield of about 0.05% ($1.00 per share per year). Dividend figures can change; this is not investment advice.

Where can I see live WTM alerts?

The WTM Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged WTM 5 times in the last 30 days.

What exchange is WTM on?

WTM (White Mountains Insurance Group Ltd.) trades on XNYS, with a market cap of about $5.23B.

Is WTM good for day trading?

That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge WTM for yourself. This is not investment advice.

Live data from TheDesperateTrader scanner. Not investment advice.