Compare StocksAFL vs UNH

Aflac Incorporated (AFL) vs UnitedHealth Group Incorporated (UNH)

AFL
Aflac Incorporated
$107.17
VS
UNH
UnitedHealth Group Incorporated
$280.44

Rewards

AFL
  • Share count has been reduced by 16% over the past 4 years through buybacks, increasing each share's claim on earnings.
  • Each dollar of retained earnings has created $1.23 of market value — management is creating shareholder value.
  • FCF yield of 9.4% is historically attractive — the business generates significant cash relative to its price.
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

AFL
  • Aflac Incorporated scores only 13/100 on the Economic Moat Score, suggesting limited durable competitive advantages.
  • Trailing P/E of 15.7x is 32% above the historical average of 11.9x — the stock trades at a premium to its own history.
  • Altman Z-Score of 1.20 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
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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AFL
UNH
Valuation
$5.18B
Free Cash Flow
$13.86B
9.35%
FCF Yield
5.45%
15.71
Trailing P/E
21.18
13.79
Forward P/E
14.08
Quality & Moat
10.81%
ROIC
0.64%
12.36%
ROE
11.85%
46.64%
Gross Margin
18.53%
N/A
PEG Ratio
N/A
Balance Sheet Safety
0.43
Debt / Equity
0.82
N/A
Interest Coverage
N/A
1.03
Net Debt / EBITDA
2.54
2.28%
Dividend Yield
3.15%
AFL: 6Ties: 3UNH: 2
AFLUNH

Historical Fundamentals

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AFL

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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AFL
$1.23
created per $1 retained over 3 years
Value Creator
Σ Retained
$10.50B
Δ Market Cap
+$12.93B
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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AFL
40.5% Margin of Safety
Price is 40.5% below estimated fair value
Current Price: $107.17
Fair Value: $180.13
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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AFL

What growth rate is the market pricing in at $107?

+0.3%
Market-Implied FCF Growth Rate

Market above historical growth — verify catalysts.

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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AFL
13/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though revenue predictability 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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AFL
-2.40
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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AFL
Insiders 10.9%Institutions 59.6%Retail & Other 29.5%
No. of Institutional Holders2,112
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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AFL
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
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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AFL
5
Sells (3M)
17
Sells (12M)
Total value (12M): $14.56M
KOIDE MASATOSHI
Officer
$1.70M
@ $109.93 · 2026-03-11
LAKE CHARLES D II
Officer
$1.71M
@ $109.93 · 2026-03-11
MOSKOWITZ JOSEPH L
Director
$66,054
@ $110.09 · 2026-03-09
BEAVER STEVEN KENT
Officer
$839,015
@ $113.58 · 2026-02-20
BRODEN MAX
Chief Financial Officer
$1.53M
@ $117.67 · 2026-02-06
BEAVER STEVEN KENT
Officer
$601,520
@ $109.53 · 2025-12-12
BEAVER STEVEN KENT
Officer
$377,166
@ $109.26 · 2025-12-05
TILLMAN AUDREY BOONE
Officer
$1.78M
@ $112.00 · 2025-11-18
MOSKOWITZ JOSEPH L
Director
$89,404
@ $113.75 · 2025-11-17
TILLMAN AUDREY BOONE
Officer
$397,325
@ $115.10 · 2025-11-14
MOSKOWITZ JOSEPH L
Director
$114,000
@ $114.00 · 2025-11-07
SIMARD FREDERIC JEAN GUY
Officer
$193,725
@ $112.50 · 2025-11-06
MOSKOWITZ JOSEPH L
Director
$102,570
@ $102.57 · 2025-08-08
KOIDE MASATOSHI
Officer
$3.91M
@ $105.59 · 2025-05-20
COLLINS ARTHUR REGINALD
Director
$290,689
@ $105.71 · 2025-05-15
KENNY THOMAS J
Director
$762,238
@ $106.34 · 2025-05-09
MOSKOWITZ JOSEPH L
Director
$106,790
@ $106.79 · 2025-05-08
LAKE CHARLES D II
Officer
$5.69M
@ $107.44 · 2025-03-10
MOSKOWITZ JOSEPH L
Director
$107,630
@ $107.63 · 2025-03-07
KOIDE MASATOSHI
Officer
$2.36M
@ $107.63 · 2025-03-07
TILLMAN AUDREY BOONE
Officer
$2.56M
@ $103.40 · 2024-12-27
MOSKOWITZ JOSEPH L
Director
$64,998
@ $108.33 · 2024-11-08
MOSKOWITZ JOSEPH L
Director
$59,730
@ $99.55 · 2024-08-08
KENNY THOMAS J
Director
$197,890
@ $98.94 · 2024-08-07
LAKE CHARLES D II
Officer
$1.96M
@ $87.47 · 2024-05-21
MOSKOWITZ JOSEPH L
Director
$50,904
@ $84.84 · 2024-05-08
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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AFL
FearGreed
😐Neutral(48/100)

"Market is pricing this stock without strong emotion in either direction"

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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AFL
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: Neutral (48)
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 AFL Full AnalysisView UNH Full Analysis
Aflac Incorporated (AFL) vs UnitedHealth Group Incorporated (UNH) Stock Comparison | SafetyMargin.io