WTM White Mountains Insurance Group Ltd.

XNYS
Find condors

Stock quote, options chain, IV rank, technicals, AI analysis, and institutional ownership. Iron condor setups Fibonacci levels Insider trading

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

WTM — —
Key stats
About
Industry (SIC)
FIRE, MARINE & CASUALTY INSURANCE (6331) · industry map
Exchange
XNYS
Market Cap
$5.2B
Employees
1,648
List Date
1985-10-23
CIK
0000776867
Next Earnings
2026-11-05
Headquarters
Hanover, NH
Homepage
https://www.whitemountains.com

White Mountains Insurance Group Ltd is engaged in the business of making opportunistic and value-oriented acquisitions of businesses and assets in the insurance, financial services, and related sectors, operating these businesses and assets through its subsidiaries and, if and when attractive exit valuations become available, disposing of these businesses and assets. The company conducts its business in five areas: property and casualty insurance and reinsurance, municipal bond reinsurance, capital solutions for asset and wealth management firms, property and casualty insurance distribution, a…

Summary
—
composite
—
No summary data available for this symbol yet.

Each spoke is this symbol's rank within its sector (0–100; the dotted ring marks the sector median at 50). Higher is more constructive for a long. One spoke — News sentiment — is an absolute reading, not a sector rank. Grayed spokes have no data. A fuller shape is a summary, not a recommendation.

Chart
Seasonality
Month'21'22'23'24'25'26Avg
Jan0.53%3.04%9.39%4.37%0.18%0.15%2.94%
Feb13.79%0.07%-3.38%9.57%-2.79%7.98%4.21%
Mar-6.86%10.25%-3.44%3.11%2.62%-2.10%0.60%
Apr3.38%-8.52%4.04%0.45%-7.07%2.46%-0.88%
May-0.17%18.55%-6.77%-0.92%2.17%-4.56%1.38%
Jun-3.43%-1.28%1.25%2.09%0.17%0.55%-0.11%
Jul-2.31%-1.57%11.79%1.25%-0.12%1.19%1.70%
Aug-0.11%8.40%0.30%3.49%3.12%0.03%2.54%
Sep-4.67%-4.18%-6.04%-6.98%-8.99%-4.41%-5.88%
Oct-1.31%7.87%-5.21%1.64%15.39%7.65%*4.34%
Nov-8.82%-2.69%5.18%11.34%6.55%--2.31%
Dec2.44%3.61%-1.40%-3.12%2.62%--0.83%
Total-8.94%35.33%3.80%28.03%12.41%8.43%13.18%
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
  • EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
  • MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
  • ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
  • +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
  • RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
  • Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
  • Williams %R — inverted scale: <−80 oversold, >−20 overbought.

Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.

Volume & Volatility
  • Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
  • OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
  • Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
  • ATR / True Range — average daily $ move; sizing and stop-loss reference.
  • HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.

Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →

Trend Indicators

SMA 20: $2058.91
SMA 50: $2083.59
SMA 200: $2129.19
Current: $2167.12
EMA 12: $2099.06
EMA 26: $2080.18
MACD: 18.8824 | Signal: 17.7379
BULLISH
ADX (14): 19.05
RANGE
+DI: 26.89
−DI: 11.20

Momentum Oscillators

RSI (14): 75.17
OVERBOUGHT
Stoch %K: 93.99
Stoch %D: 93.40
Williams %R: -5.82

Volume & Volatility

BB Upper: $2156.49
BB Lower: $1961.33
OVERBOUGHT
OBV: 230,582
Vol SMA 20: 17,690
Vol ROC: -16.54%
ATR: $35.14
True Range: $30.53
HV 20: 12.1%
HV 30: 13.8%
HV 60: 14.3%

Data Summary

Data Points: 500
Last Updated:
Date Range: 2024-10-21T00:00:00 – 2026-10-19T00:00:00
AI Analysis

Click Frenzy-Pro™ for an AI analysis of this ticker.

Analysis includes technical indicators, news sentiment, risk assessment, and specific price levels to watch.

WTM Options Activity & IV Rank

Loading options activity...
Spread Scanner GPU

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.

Stage 2 — Skew Adjustment (±25% cap)

RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • Min open interest across all legs
  • OI < 100 → −0.10 · OI < 500 → −0.05

score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →

Enter a ticker to scan for optimal spread opportunities.

Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.

Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.

  • Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
  • Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
  • Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
  • Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.

  • Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
  • Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
  • Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
  • Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together

Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:

  • High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
  • Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
  • Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d —
— pts EXTREME
ATM — / Wing —
30 DTE / 10d —
— pts EXTREME
ATM — / Wing —

Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.

Volatility Surface

Enter a ticker to render the implied volatility surface.

Volatility Smile

Enter a ticker to render the implied volatility smile.

IV Rank (7 DTE)
IV Rank (30 DTE)
Straddle Price (30 DTE)
Beta Analysis

Risk Metrics

Beta: 0.0951
Alpha: 12.86%
Correlation: 0.0638
R-Squared: 0.4%
Stock Volatility: 19.0%
Market Volatility: 12.7%

Analysis Details

Benchmark: SPY
Data Points: 251
Period: 252 trading days
Interpretation:
Low volatility - stock moves less than market
Beta & Alpha Over Time

WTM Institutional Ownership (13F)

Latest filings — 2026-09-30

Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.

  • Shares — long equity positions in this name, aggregated across share classes.
  • Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
  • % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
  • Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.

Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.

372 filers4,921,550 shares$10.20B value
# Filer Shares Value % of Total % of Float Period
1 Vanguard Group Inc Custodian 471,396 $979.58M 9.60% — 2025-12-31
2 Dimensional Fund Advisors LP Custodian 317,908 $659.16M 6.46% — 2026-06-30
3 Neuberger Berman Group LLC 238,282 $494.05M 4.84% — 2026-06-30
4 BlackRock, Inc. Custodian 235,742 $488.79M 4.79% — 2026-06-30
5 River Road Asset Management, LLC 231,760 $480.53M 4.71% — 2026-06-30
6 Vanguard Portfolio Management LLC 223,938 $464.31M 4.55% — 2026-06-30
7 Vanguard Capital Management LLC 214,958 $445.69M 4.37% — 2026-06-30
8 FULLER & THALER ASSET MANAGEMENT, INC. 203,784 $422.52M 4.14% — 2026-06-30
9 COOKE & BIELER LP 170,240 $352.97M 3.46% — 2026-06-30
10 Wallace Capital Management Inc. 160,134 $332.02M 3.25% — 2026-06-30
11 FIDUCIARY MANAGEMENT INC /WI/ 133,100 $275.97M 2.70% — 2026-06-30
12 GENDELL JEFFREY L 118,486 $245.67M 2.41% — 2026-06-30
13 Boston Partners 111,138 $230.55M 2.26% — 2026-06-30
14 LONDON CO OF VIRGINIA 108,050 $224.15M 2.20% — 2026-06-30
15 State Street Corp 100,514 $208.40M 2.04% — 2026-06-30
16 Geode Capital Management, LLC Custodian 98,824 $204.95M 2.01% — 2026-06-30
17 Morgan Stanley Custodian 93,732 $194.35M 1.90% — 2026-06-30
18 REINHART PARTNERS, LLC. 87,918 $176.41M 1.73% — 2026-09-30
19 T. Rowe Price Investment Management, Inc. 68,474 $141.97M 1.39% — 2026-06-30
20 LORD, ABBETT & CO. LLC 65,658 $136.13M 1.33% — 2026-06-30
21 American Century Companies, Inc. 62,216 $129.00M 1.26% — 2026-06-30
22 Norges Bank 55,912 $115.93M 1.14% — 2026-06-30
23 Cannell & Spears LLC 55,154 $114.35M 1.12% — 2026-06-30
24 Bank of America Corp Custodian 50,056 $103.79M 1.02% — 2026-06-30
25 Charles Schwab Investment Management, Inc. 47,010 $97.47M 0.96% — 2026-06-30
# Filer Notional Value % of Total Period
1 filers$592.99K notional
# Filer Notional Value % of Total Period
1 Chapman Investment Management, LLC $592.99K 100.00% 2026-06-30

WTM Insider Trading (Form 4)

Latest: 2026-08-31
Form 4 filings — insider beneficial-ownership changes by officers, directors, and 10%+ holders. Filed within 2 business days of transaction.
Filed Reporter Role Action Shares Avg Price Net $ Link
2026-08-31 David Allen Tanner Director Gift (G) −2 — EDGAR
2026-08-27 Stephen Klar Director Award (A) +113 — EDGAR
2026-05-22 Reid Tarlton Campbell Director Award (A) +135 — EDGAR
2026-05-22 Peter M Carlson Director Award (A) +135 — EDGAR
2026-05-22 Mary C Choksi Director Award (A) +135 — EDGAR
2026-05-22 John Chu Director Award (A) +135 — EDGAR
2026-05-22 Margaret Dillon Director Award (A) +135 — EDGAR
2026-05-22 Philip A Gelston Director Award (A) +135 — EDGAR
2026-05-22 Weston M Hicks Director Award (A) +190 — EDGAR
2026-05-22 Suzanne F. Shank Director Award (A) +135 — EDGAR
2026-05-22 David Allen Tanner Director Award (A) +135 — EDGAR
2026-03-20 Robert Lawrence Seelig EVP & General Counsel Gift (G) −50 — EDGAR
2026-03-05 David Allen Tanner Director Gift (G) −225 — EDGAR
2026-02-27 Robert Lawrence Seelig EVP & General Counsel Award (A) +775 — EDGAR
2026-02-27 Michael A Papamichael Chief Financial Officer Award (A) +500 — EDGAR
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (described in filing footnote — typically 401(k), trust, inheritance) · W = will/inheritance. Only P / S codes carry directional signal.

WTM Insider Holdings

17 insiders · @ $2167.12
Officers, directors, and 10%+ owners who have filed a Form 4 in the past two years, ranked by current disclosed exposure (shares × today's price). Shares are direct + indirect (via trusts / LLCs / spouse). Excludes unvested RSU and option grants — those aren't beneficially owned until vest.
# Insider Role Shares Disclosed Exposure Lifetime OM Net Filings Last Filed
1 Robert Lawrence Seelig EVP & General Counsel 17,861 $38.71M -$8.81M 50 2026-03-20
2 George Manning Rountree Chief Executive Officer 13,931 $30.19M -$13.89M 34 2025-12-22
3 Reid Tarlton Campbell Director 10,694 $23.18M -$14.67M 50 2026-05-22
4 Liam P Caffrey Chief Executive Officer 3,658 $7.93M $0 6 2026-02-27
5 Weston M Hicks Director 2,936 $6.36M $2.96M 7 2026-05-22
6 Giles E Harrison President 2,677 $5.80M $0 3 2026-02-27
7 David Allen Tanner Director 2,012 $4.36M $459.2K 13 2026-08-31
8 Mary C Choksi Director 1,993 $4.32M $0 10 2026-05-22
9 Michaela Hildreth MD & Chief Accounting Officer 1,845 $4.00M -$264.3K 17 2026-02-27
10 Philip A Gelston Director 1,703 $3.69M -$338.0K 11 2026-05-22
Lifetime OM Net = signed sum of open-market buys (P) and sells (S) over their career; excludes grants, tax withholdings, and dispositions to issuer. A large negative number is normal for long-tenured executives — they've sold compensation grants over many years.
Recent SEC Filings
Latest: 2026-06-05
Current reports — material events the company must disclose within 4 business days (earnings releases, M&A, executive changes, etc.).
Filing Date Accession Link
2026-06-05 0001628280-26-041051 EDGAR
2026-05-21 0001628280-26-037284 EDGAR
2026-05-15 0001628280-26-035349 EDGAR
2026-05-06 0001628280-26-030930 EDGAR
2026-04-01 0001628280-26-022818 EDGAR
2026-02-26 0001628280-26-012417 EDGAR
2026-02-06 0001628280-26-005947 EDGAR
2026-01-07 0001628280-26-001102 EDGAR
2025-12-08 0001628280-25-055702 EDGAR
2025-11-06 0001628280-25-049888 EDGAR
Annual report — audited financial statements, MD&A, risk factors. Filed 60–90 days after fiscal year-end.
Filing Date Accession Link
2026-02-27 0001628280-26-012603 EDGAR
2025-02-28 0000776867-25-000003 EDGAR
2024-02-26 0000776867-24-000005 EDGAR
2023-02-27 0000776867-23-000004 EDGAR
2022-02-28 0000776867-22-000002 EDGAR
2021-02-26 0000776867-21-000004 EDGAR
2020-03-02 0000776867-20-000009 EDGAR
2019-02-27 0000776867-19-000008 EDGAR
2018-02-28 0000776867-18-000002 EDGAR
2017-02-27 0000776867-17-000005 EDGAR
Quarterly report — unaudited financials and MD&A. Filed 40–45 days after each of the first three fiscal quarters.
Filing Date Accession Link
2026-05-06 0001628280-26-030935 EDGAR
2025-11-06 0001628280-25-049910 EDGAR
2025-08-07 0000776867-25-000014 EDGAR
2025-05-07 0000776867-25-000006 EDGAR
2024-11-06 0000776867-24-000019 EDGAR
2024-08-07 0000776867-24-000015 EDGAR
2024-05-09 0000776867-24-000010 EDGAR
2023-11-06 0000776867-23-000017 EDGAR
2023-08-07 0000776867-23-000013 EDGAR
2023-05-09 0000776867-23-000006 EDGAR
ETF Holders
73 ETFs hold WTM
25 shown · $839.91M total exposure · 0.06% AUM-weighted avg weight
# ETF Provider Weight $ Exposure ETF AUM As Of
1 VTI Vanguard Morningstar Total Stock Market ETF Vanguard 0.01% $143.0M — 2026-09-30
2 VB Vanguard Morningstar Small-Cap ETF Vanguard 0.06% $102.3M — 2026-09-30
3 DFSV Dimensional US Small Cap Value ETF Dimensional 0.37% $100.1M — 2026-10-15
4 DFAT Dimensional US Targeted Value ETF Dimensional 0.25% $76.2M — 2026-10-15
5 AVUV Avantis U.S. Small Cap Value ETF Avantis 0.24% $75.5M $31.2B 2026-10-15
6 VBR Vanguard Morningstar Small-Cap Value ETF Vanguard 0.10% $66.6M — 2026-09-30
7 VXF Vanguard Extended Market ETF Vanguard 0.06% $52.9M — 2026-09-30
8 DFAS Dimensional US Small Cap ETF Dimensional 0.15% $50.9M — 2026-10-15
9 DFAC Dimensional US Core Equity 2 ETF Dimensional 0.03% $26.0M — 2026-10-15
10 IWR iShares Russell Mid-Cap ETF iShares (BlackRock) 0.04% $21.8M $56.3B 2026-10-15
11 FXO First Trust Financials AlphaDEX® Fund First Trust 1.73% $18.0M $1.0B 2026-10-16
12 DCOR Dimensional US Core Equity 1 ETF Dimensional 0.03% $13.0M — 2026-10-15
13 IWD iShares Russell 1000 Value ETF iShares (BlackRock) 0.01% $11.5M $83.7B 2026-10-15
14 KIE State Street® SPDR® S&P® Insurance ETF SPDR (State Street) 1.94% $10.3M $531.7M 2026-10-15
15 DFMC Dimensional US Micro Cap ETF Dimensional 0.14% $10.3M — 2026-10-15
16 USVM VictoryShares US Small Mid Cap Value Momentum ETF Nport 0.50% $8.8M — 2026-06-30
17 VFH Vanguard Financials ETF Vanguard 0.06% $8.0M — 2026-09-30
18 IWS iShares Russell Mid-Cap Value ETF iShares (BlackRock) 0.05% $7.9M $15.4B 2026-10-15
19 SMLF iShares U.S. Small-Cap Equity Factor ETF iShares (BlackRock) 0.16% $6.5M $4.1B 2026-10-15
20 ITOT iShares Core S&P Total U.S. Stock Market ETF iShares (BlackRock) 0.01% $6.4M $96.0B 2026-10-15
21 JQUA JPMorgan U.S. Quality Factor ETF JPMorgan 0.07% $6.3M $9.2B 2026-10-16
22 FNX First Trust Mid Cap Core AlphaDEX® Fund First Trust 0.39% $5.2M $1.3B 2026-10-16
23 DFUV Dimensional US Marketwide Value ETF Dimensional 0.03% $4.2M $15.4B 2026-10-15
24 AVSC Avantis U.S. Small Cap Equity ETF Avantis 0.13% $4.1M $3.1B 2026-10-15
25 VT Vanguard Total World Stock ETF Vanguard 0.00% $3.8M — 2026-09-30
Fundamentals

Quarterly filings sourced from SEC 10-Q / 10-K reports. TTM tiles aggregate the most recent four quarters; bars show the last ~12 quarters oldest → newest.

Metrics
  • Revenue — top-line sales. Look for consistent YoY growth; seasonal businesses need same-quarter comparisons (Q4 '24 vs Q4 '23).
  • Net Income — bottom-line profit after all expenses. Can be volatile from one-time items; red bars = net loss.
  • Diluted EPS — net income per share assuming options/converts are exercised. Direct input to the P/E ratio.
  • Operating Cash Flow — cash generated from core operations, before capex and financing. Harder to manipulate than net income; growing OCF is a quality signal.
How to read the bars
  • Sequential growth — quarter-over-quarter trend. Accelerating bars are a momentum signal.
  • YoY growth — compare to the same quarter a year earlier to remove seasonality.
  • Quality — OCF should roughly track Net Income over time. Large divergence (net income ≫ OCF) flags accruals risk.
  • Margins — scan the bar ratios: Net Income / Revenue tells you margin trend without needing a separate chart.

TTM (trailing-twelve-month) smooths seasonality and is used for the P/E calculation. Filings appear 30–90 days after the period closes.