WTM — White Mountains Insurance Group Ltd

✨ Hidden Gem

Stock analysis, trade plans, and proprietary indicators by Trend Edge.

Trend Edge Setup Score

Trend Edge rates WTM Bullish with a Setup Score of 43, net conviction 30, actionability 62. How the Setup Score works →

Total Setup Score43
Directional BiasBullish
Net Conviction30
Actionability62 (in range)

Key signals behind this score

About White Mountains Insurance Group Ltd

White Mountains Insurance Group, Ltd. provides insurance services in the United States, the United Kingdom, Bermuda, and internationally. It operates through Ark/WM Outrigger, HG Global, Kudu, Distinguished, and Other Operations segments. The company offers property insurance and reinsurance; specialty insurance and reinsurance consisting of aviation, contingency, cyber, fine art and specie, mortgage, nuclear, political and credit, space, surety,… Read full Trend Edge analysis →

Trend Edge Proprietary Indicators

Key Metrics

Current Price$2132.30
Market Cap$5.05B
Float2.3M
Shares Outstanding2.4M
P/E (Forward)13.87
P/E (TTM)4.85
Price/Sales (TTM)1.70
vs. Analyst Target-83.1% to analyst PT
Profit Margin37.66%
Operating Margin (TTM)36.41%
Revenue (TTM)$2.98B
Earnings Growth (YoY)68.80%
Dividend Rate1.0%
Analyst Target Price$360.00

Financial History

Annual Revenue & Earnings History

YearRevenueNet IncomeGross ProfitEBITDA
2020 $896M $709M $813M $677M
2021 $614M -$275M $33.1M -$232M
2022 $1.16B $793M $371M -$105M
2023 $2.17B $509M $1.15B $610M
2024 $2.35B $230M $1.07B $371M
2025 $2.71B $1.11B $1.45B $1.41B

Recent Quarterly Revenue & Net Income

QuarterRevenueNet Income
Sep 2025 $864M $114M
Dec 2025 $576M $836M
Mar 2026 $515M -$31.1M
Jun 2026 $845M $200M

Ownership & Float

Insider Ownership3.2%
Institutional Ownership96.3%
Short Float6.0%
% of All Funds Holding4.00%
Number of Funds Holding352

Current Moving Averages

Trend Edge tracks near-term, medium-term, cyclical, and secular moving averages across weekly and monthly timeframes to identify trend structure at every horizon.

TimeframeSMAValueTrend Context
Weekly10-Week SMA$2149.87Near-term / short-term trend
Weekly40-Week SMA$2131.20Medium-term trend
Weekly80-Week SMA$1976.26Cyclical trend (business cycle)
Weekly200-Week SMA$1761.30Secular trend (multi-year)
Monthly10-Month SMA$2116.49Near-term monthly trend
Monthly20-Month SMA$1970.74Medium-term monthly trend
Monthly40-Month SMA$1821.85Secular monthly trend

Volume Shelves — Support & Resistance

Trend Edge identifies volume shelves: price zones where historically elevated trading volume creates structural support or resistance. A volume shelf forms when a disproportionate share of cumulative volume was transacted at a specific price level, making it a high-conviction anchor for future price reactions.

Price LevelTypeVolume RatioAge
$1670.00 support 1.56x 9 months ago

Historical Earnings Reactions (112 events)

TimeframeAvg ReturnMedianWin RateBestWorst
Gap 0.02% 0.00% 43.75% 5.84% -4.27%
1 Day 0.08% 0.14% 54.46% 7.94% -11.83%
1 Week 0.12% 0.18% 54.46% 11.65% -15.19%
2 Weeks 0.72% 0.94% 58.93% 14.38% -14.81%
1 Month 1.08% 1.05% 59.46% 18.99% -24.12%

Next earnings: October 25, 2026 (61 days away)

Seasonality & Day-of-Week Patterns

Monthly Seasonality

MonthAvg ReturnWin RateSamples
Jan0.8%53.7%41
Feb2.4%61.0%41
Mar0.7%58.5%41
Apr0.2%51.2%41
May2.5%68.3%41
Jun0.5%58.5%41
Jul1.0%48.8%41
Aug2.6%65.0%40
Sep-0.2%42.5%40
Oct1.0%57.5%40
Nov1.0%70.7%41
Dec0.7%53.7%41

Day-of-Week Tendencies

DayAvg ReturnWin RateSamples
Monday -0.03% 46.6% 1941
Tuesday 0.07% 47.6% 2111
Wednesday 0.06% 49.0% 2107
Thursday 0.07% 48.6% 2069
Friday 0.10% 50.5% 2057

Top Institutional Holders

Institutional holder breakdown coming soon.

Total institutional ownership: 96.3%

Insider Transactions — Smart Summary

Total insider ownership: 3.2%

12-Month Insider Activity Summary

Total Filings3
Net Value-$10.3M
Net Shares Change-10,165
% of Float-0.4%
C-Suite Filings1
Clusters Detected1

Key Insiders

NameTitleNet ValueFilingsActivity
Rountree George Manning Chief Executive Officer -$10.3M 1 1 sell
CAMPBELL REID TARLTON -$10.3M 1 1 sell
Gelston Philip A -$338,004.15 1 1 sell

Transaction Clusters

PeriodFilingsInsidersNet ValueSeniority
2025-12-16 – 2025-12-22 3 3 -$20.8M 1 C-suite

Significant Filings

DateInsiderTitleNet ValuePrice After
2025-12-22 Rountree George Manning Chief Executive Officer -$10.3M Transaction at $2050.00, now +4.0%
2025-12-22 CAMPBELL REID TARLTON -$10.3M Transaction at $2050.00, now +4.0%
2025-12-16 Gelston Philip A -$338,004.15 Transaction at $2048.51, now +4.1%

View full insider transaction history on Trend Edge →

AI Consult Analysis

Trend Edge's AI Consult feature delivers a comprehensive, multi-layer trade plan for White Mountains Insurance Group Ltd (WTM) powered by Claude Opus — Anthropic's most capable AI model. The analysis covers five layers: technical analysis (near-term, medium-term, cyclical, and secular trend, momentum, volume shelf support and resistance, breakout and breakdown signals), qualitative analysis (business model, competitive moat, sector dynamics), insider sentiment (buy and sell signals from executive and director transactions), share stats analysis (institutional accumulation, fund positioning, short float squeeze potential), and fundamental analysis (valuation, revenue growth, profit margin, earnings quality).

AI Consult synthesizes all five layers into a single bullish or bearish thesis with explicit entry, exit, stop loss, and take profit levels — giving you a complete, AI-powered trade plan with defined risk/reward. Whether you are building a long position, initiating a short, or looking for a reversal setup, AI Consult identifies the highest-probability signal from the current trend.

Get the full AI Consult analysis for WTM on Trend Edge →