Compare StocksCOF vs UNH

Capital One Financial Corporation (COF) vs UnitedHealth Group Incorporated (UNH)

COF
Capital One Financial Corporation
$179.73
VS
UNH
UnitedHealth Group Incorporated
$280.44

Rewards

COF
  • Free cash flow has grown at a 26.6% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Each dollar of retained earnings has created $14.50 of market value — management is an exceptional capital allocator.
UNH
  • 5 insider purchases over the past 12 months with a buy/sell ratio above 3:1 — a sustained pattern of insider confidence.
  • Dividend yield of 3.15% with a consistent or growing payout over the past 4 years.

Risks

COF
  • Gross margin of 0.0% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • Share count has increased by 64% over the past 4 years, diluting existing shareholders.
  • Buybacks have been poorly timed — 3 out of 4 years involved repurchases at relatively expensive valuations.
UNH
  • ROIC has declined by 7.9 percentage points over the observed period, which may signal competitive erosion.
  • Gross margin of 18.5% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • FCF yield of 5.4% suggests reasonable valuation assuming continued moderate growth.

Key Valuation Metrics

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COF
UNH
Valuation
N/A
Free Cash Flow
$13.86B
N/A
FCF Yield
5.45%
53.49
Trailing P/E
21.18
7.31
Forward P/E
14.08
Quality & Moat
11.02%
ROIC
0.64%
N/A
ROE
11.85%
0.00%
Gross Margin
18.53%
2.41
PEG Ratio
N/A
Balance Sheet Safety
N/A
Debt / Equity
0.82
N/A
Interest Coverage
N/A
N/A
Net Debt / EBITDA
2.54
1.78%
Dividend Yield
3.15%
COF: 2Ties: 1UNH: 3
COFUNH

Historical Fundamentals

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COF

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

UNH

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.

$1 Retained Earnings Test

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COF
$14.50
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$8.00B
Δ Market Cap
+$116.05B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
UNH
$-7.37
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$26.63B
Δ Market Cap
$-196.16B
Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Buffett's "$1 Test": For every $1 of earnings retained, has management created at least $1 of market value?
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer

Discounted Cash Flow (DCF) Analysis

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COF
5.8% Margin of Safety
Price is 5.8% below estimated fair value
Current Price: $179.73
Fair Value: $190.88
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
UNH
4.9% Margin of Safety
Price is 4.9% below estimated fair value
Current Price: $280.44
Fair Value: $294.90
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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COF

Requires positive FCF to compute implied growth rate.

UNH

What growth rate is the market pricing in at $280?

+11.1%
Market-Implied Owner Earnings Growth
Standard FCF implies +9.2%

The market implies +11.1% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +9.2%, reflecting heavy growth investment.

Economic Moat Score

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COF
30/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though reinvestment efficiency shows some competitive positioning. The business lacks consistent evidence of sustainable advantages.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.
UNH
64/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with revenue predictability as the key competitive advantage. Improving margin stability would strengthen the moat.

Composite score measuring competitive advantage durability across four dimensions: returns above cost of capital, pricing power stability, revenue predictability, and capital efficiency. Based on 4 years of fundamental data.

Forensic Accounting

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COF
-2.27
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.
UNH
-2.45
Unlikely Manipulator
Above -1.78 = likely manipulator · -2.22 to -1.78 = grey zone

M-Score Trend

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Beneish's 8-variable model estimates the probability of earnings manipulation. An M-Score above -1.78 signals elevated risk — companies in this range have historically been 3-5× more likely to be manipulating earnings. Scores between -2.22 and -1.78 fall in a grey zone warranting further investigation.

Ownership Breakdown

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COF
Insiders 1.9%Institutions 88.6%Retail & Other 9.6%
No. of Institutional Holders2,706
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.
UNH
Insiders 0.8%Institutions 84.2%Retail & Other 14.9%
No. of Institutional Holders4,244
High insider ownership aligns management incentives with shareholders — a key signal in Buffett-style analysis. Institutional concentration can indicate smart-money conviction but also crowding risk.

High insider ownership aligns management incentives with shareholders. Institutional concentration can indicate smart-money conviction but also crowding risk.

Insider Buying Activity

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COF
0
Buys (3M)
1
Buys (12M)
Total value (12M): $1,972
ZAMSKY MICHAEL
Officer
$1,972
@ $197.20 · 2025-05-16
Open market purchases · includes direct & indirect ownership · excludes option exercises
UNH
0
Buys (3M)
5
Buys (12M)
Total value (12M): $31.61M
REX JOHN F
President
$5.00M
@ $291.12 · 2025-05-16
HEMSLEY STEPHEN J
Chief Executive Officer
$25.02M
@ $288.57 · 2025-05-16
GIL KRISTEN
Director
$1.00M
@ $271.17 · 2025-05-15
FLYNN TIMOTHY PATRICK
Director
$491,786
@ $320.80 · 2025-05-14
NOSEWORTHY JOHN H
Director
$93,647
@ $312.16 · 2025-05-14
FLYNN TIMOTHY PATRICK
Director
$511,575
@ $511.57 · 2025-01-17
Open market purchases · includes direct & indirect ownership · excludes option exercises

Open market purchases · includes direct & indirect ownership · excludes option exercises.

Insider Selling Activity

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COF
12
Sells (3M)
28
Sells (12M)
Total value (12M): $85.26M
DEAN LIA
Officer
$627,244
@ $191.00 · 2026-03-02
KARAM CELIA EDWARDS
Officer
$312,476
@ $191.00 · 2026-03-02
MOUADEB MARK DANIEL
Officer
$334,530
@ $210.00 · 2026-02-26
MOUADEB MARK DANIEL
Officer
$305,755
@ $202.62 · 2026-02-25
HANSON JASON P
Officer
$764,445
@ $205.00 · 2026-02-25
BLINDE NEAL A
Officer
$7.27M
@ $190.51 · 2026-02-24
DEAN LIA
Officer
$734,565
@ $223.68 · 2026-02-04
KARAM CELIA EDWARDS
Officer
$460,071
@ $218.25 · 2026-02-02
COOPER MATTHEW W.
General Counsel
$500,000
@ $250.00 · 2026-01-06
RAGHU RAVI
Officer
$3.36M
@ $250.00 · 2026-01-05
KARAM CELIA EDWARDS
Officer
$504,338
@ $244.35 · 2026-01-02
DEAN LIA
Officer
$772,879
@ $244.35 · 2026-01-02
COOPER MATTHEW W.
General Counsel
$443,080
@ $221.54 · 2025-12-02
KARAM CELIA EDWARDS
Officer
$640,488
@ $218.15 · 2025-12-01
DEAN LIA
Officer
$713,132
@ $218.15 · 2025-12-01
LAPRADE FRANK G. III
Officer
$3.96M
@ $222.03 · 2025-11-13
BLINDE NEAL A
Officer
$9.58M
@ $221.83 · 2025-11-06
COOPER MATTHEW W.
General Counsel
$438,820
@ $219.41 · 2025-11-04
FAIRBANK RICHARD D
Chief Executive Officer
$22.84M
@ $220.68 · 2025-11-04
FAIRBANK RICHARD D
Chief Executive Officer
$23.35M
@ $225.68 · 2025-10-27
COOPER MATTHEW W.
General Counsel
$423,980
@ $211.99 · 2025-10-02
COOPER MATTHEW W.
General Counsel
$446,800
@ $223.40 · 2025-09-02
GOLDEN TIMOTHY P.
Officer
$44,590
@ $215.41 · 2025-08-19
GOLDEN TIMOTHY P.
Officer
$727,989
@ $210.28 · 2025-08-12
ZAMSKY MICHAEL
Officer
$1.16M
@ $209.59 · 2025-08-04
ALEXANDER ROBERT M.
Chief Technology Officer
$2.30M
@ $227.86 · 2025-07-23
ZAMSKY MICHAEL
Officer
$1.91M
@ $199.40 · 2025-05-12
HACKETT ANN FRITZ
Director
$329,445
@ $198.70 · 2025-05-12
ZAMSKY MICHAEL
Officer
$2.01M
@ $190.26 · 2024-11-12
YOUNG ANDREW M
Chief Financial Officer
$1.08M
@ $183.51 · 2024-11-08
WEST KARA
Officer
$133,189
@ $184.73 · 2024-11-07
ALEXANDER ROBERT M.
Chief Technology Officer
$3.11M
@ $187.12 · 2024-11-07
RAGHU RAVI
Officer
$4.09M
@ $165.00 · 2024-11-05
MOUADEB MARK DANIEL
Officer
$323,766
@ $162.37 · 2024-11-05
LAPRADE FRANK G. III
Officer
$2.52M
@ $160.00 · 2024-10-17
BORGMANN KEVIN S
Officer
$8.18M
@ $132.86 · 2024-08-06
ALEXANDER ROBERT M.
Chief Technology Officer
$4.61M
@ $150.00 · 2024-07-17
KARAM CELIA EDWARDS
Officer
$2.42M
@ $142.88 · 2024-05-08
WEST KARA
Officer
$171,946
@ $141.87 · 2024-05-02
DEAN LIA
Officer
$2.21M
@ $143.00 · 2024-05-01
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
UNH
0
Sells (3M)
1
Sells (12M)
Total value (12M): $179,645
CONWAY PATRICK HUGH M.D.
Chief Executive Officer
$179,645
@ $305.00 · 2025-06-10
MCSWEENEY ERIN L
Officer
$438,987
@ $626.23 · 2024-11-11
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives

Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives.

🎭 Mr. Market's Mood

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COF
FearGreed
😨Fear(34/100)

"Market is pessimistic — investigate whether fears are temporary or structural"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.
UNH
FearGreed
😨Fear(37/100)

"Market is pessimistic — investigate whether fears are temporary or structural"

Composite sentiment score based on 6 market signals. Inspired by Buffett's "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

Composite sentiment score based on market signals. Inspired by Buffett’s "Mr. Market" allegory — fear = potential opportunity, greed = potential risk. Must be used alongside fundamental analysis, not in isolation.

⚖️ Buffett Signal

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COF
Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Fear (34)
UNH
Awaiting DCF Data

The Buffett Signal cross-references market sentiment with DCF valuation. Configure the DCF Analysis above to generate a signal.

DCF Margin of Safety: N/AMr. Market's Mood: Fear (37)
View COF Full AnalysisView UNH Full Analysis
Capital One Financial Corporation (COF) vs UnitedHealth Group Incorporated (UNH) Stock Comparison | SafetyMargin.io