Compare StocksMMM vs UNH

3M Company (MMM) vs UnitedHealth Group Incorporated (UNH)

MMM
3M Company
$142.71
VS
UNH
UnitedHealth Group Incorporated
$280.44

Rewards

MMM
  • Altman Z-Score of 4.26 indicates very low bankruptcy risk — the company is firmly in the safe zone.
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

MMM
  • FCF yield of 1.7% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Trailing P/E of 23.8x is 34% above the historical average of 17.8x — the stock trades at a premium to its own history.
  • High leverage (2.77x debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
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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MMM
UNH
Valuation
$1.26B
Free Cash Flow
$13.86B
1.68%
FCF Yield
5.45%
23.82
Trailing P/E
21.18
15.18
Forward P/E
14.08
Quality & Moat
13.68%
ROIC
0.64%
68.46%
ROE
11.85%
39.91%
Gross Margin
18.53%
N/A
PEG Ratio
N/A
Balance Sheet Safety
2.77
Debt / Equity
0.82
N/A
Interest Coverage
N/A
0.86
Net Debt / EBITDA
2.54
2.19%
Dividend Yield
3.15%
MMM: 4Ties: 1UNH: 6
MMMUNH

Historical Fundamentals

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MMM

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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MMM
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-6.43B
Δ Market Cap
+$29.83B
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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MMM
10.7% Overvalued
Price is 10.7% above estimated fair value
Current Price: $142.71
Fair Value: $128.87
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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MMM

What growth rate is the market pricing in at $143?

+10.6%
Market-Implied Owner Earnings Growth
Standard FCF implies +23.6%

The market implies +10.6% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +23.6%, reflecting heavy growth investment.

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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MMM
40/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with reinvestment efficiency 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.
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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MMM
-2.28
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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MMM
Insiders 0.1%Institutions 76.3%Retail & Other 23.6%
No. of Institutional Holders2,821
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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MMM
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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MMM
4
Sells (3M)
12
Sells (12M)
Total value (12M): $21.69M
REINSETH THERESA E
Officer
$888,796
@ $172.75 · 2026-02-11
DICKSON ZOE L
Officer
$4.27M
@ $170.34 · 2026-02-09
DICKSON ZOE L
Officer
$3.49M
@ $169.97 · 2026-02-09
CHAVEZ RODRIGUEZ BEATRIZ KARINA
Officer
$203,645
@ $171.13 · 2026-02-09
DICKSON ZOE L
Officer
$2.35M
@ $169.78 · 2025-11-13
DICKSON ZOE L
Officer
$2.31M
@ $169.82 · 2025-11-13
MURPHY MARK W
Chief Technology Officer
$3.17M
@ $166.55 · 2025-10-29
GORALSKI CHRISTIAN T JR
President
$925,860
@ $150.18 · 2025-08-07
REINSETH THERESA E
Officer
$523,741
@ $150.63 · 2025-08-05
BANOVETZ JOHN PATRICK
Officer
$1.15M
@ $148.37 · 2025-05-23
RHODES KEVIN H
Officer
$1.23M
@ $154.02 · 2025-05-20
DICKSON ZOE L
Officer
$1.18M
@ $149.02 · 2025-05-15
CLARKE VICTORIA
Officer
$269,878
@ $154.22 · 2025-01-31
ROMAN MICHAEL F
Chairman of the Board
$7.55M
@ $152.30 · 2025-01-29
BANOVETZ JOHN PATRICK
Officer
$726,249
@ $151.36 · 2025-01-27
DICKSON ZOE L
Officer
$542,957
@ $149.41 · 2025-01-27
CHAVEZ RODRIGUEZ BEATRIZ KARINA
President
$247,163
@ $150.25 · 2025-01-27
RHODES KEVIN H
Officer
$1.01M
@ $149.85 · 2025-01-27
REINSETH THERESA E
Officer
$346,241
@ $149.95 · 2025-01-24
GORALSKI CHRISTIAN T JR
Officer
$944,070
@ $149.43 · 2025-01-24
ROMAN MICHAEL F
Chairman of the Board
$6.79M
@ $150.01 · 2025-01-24
REINSETH THERESA E
Officer
$131,925
@ $127.71 · 2024-11-20
ROMAN MICHAEL F
Chairman of the Board
$700,608
@ $123.46 · 2024-08-07
REINSETH THERESA E
Chief Financial Officer
$260,652
@ $124.12 · 2024-08-06
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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MMM
FearGreed
😐Neutral(41/100)

"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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MMM
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 (41)
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 MMM Full AnalysisView UNH Full Analysis