Compare StocksDXCM vs UNH

DexCom, Inc. (DXCM) vs UnitedHealth Group Incorporated (UNH)

DXCM
DexCom, Inc.
$67.27
VS
UNH
UnitedHealth Group Incorporated
$280.44

Rewards

DXCM
  • Gross margin of 60.1% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Free cash flow has grown at a 52.3% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Trailing P/E of 32.2x is 57% below the historical average of 75.4x — potentially undervalued relative to its own history.
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

DXCM
    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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    DXCM
    UNH
    Valuation
    $1.08B
    Free Cash Flow
    $13.86B
    4.11%
    FCF Yield
    5.45%
    32.19
    Trailing P/E
    21.18
    22.51
    Forward P/E
    14.08
    Quality & Moat
    22.80%
    ROIC
    0.64%
    30.46%
    ROE
    11.85%
    60.10%
    Gross Margin
    18.53%
    0.41
    PEG Ratio
    N/A
    Balance Sheet Safety
    0.51
    Debt / Equity
    0.82
    N/A
    Interest Coverage
    N/A
    -0.52
    Net Debt / EBITDA
    2.54
    N/A
    Dividend Yield
    3.15%
    DXCM: 5Ties: 1UNH: 4
    DXCMUNH

    Historical Fundamentals

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    DXCM

    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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    DXCM
    $-9.32
    created per $1 retained over 3 years
    Market Cap Declined
    Σ Retained
    $1.95B
    Δ Market Cap
    $-18.21B
    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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    DXCM
    27.9% Margin of Safety
    Price is 27.9% below estimated fair value
    Current Price: $67.27
    Fair Value: $93.28
    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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    DXCM

    What growth rate is the market pricing in at $67?

    +13.5%
    Market-Implied Owner Earnings Growth
    Standard FCF implies +10.1%

    The market implies +13.5% Owner Earnings growth, below historical trends — potential opportunity.

    Standard FCF implies a more demanding +10.1%, reflecting heavy growth investment expected to generate future returns.

    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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    DXCM
    65/100
    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.
    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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    DXCM
    -2.62
    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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    DXCM
    Insiders 0.4%Institutions 101.0%
    No. of Institutional Holders1,386
    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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    DXCM
    0
    Buys (3M)
    1
    Buys (12M)
    Total value (12M): $1.00M
    LEACH JACOB STEVEN
    President
    $1.00M
    @ $55.04 · 2025-11-10
    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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    DXCM
    1
    Sells (3M)
    12
    Sells (12M)
    Total value (12M): $2.41M
    HELLER BRIDGETTE P
    Director
    $68,826
    @ $68.01 · 2026-02-12
    HELLER BRIDGETTE P
    Director
    $58,767
    @ $58.07 · 2025-11-12
    MALADY KYLE
    Director
    $53,934
    @ $80.86 · 2025-09-05
    STERN SADIE
    Officer
    $117,280
    @ $80.00 · 2025-09-04
    SYLVAIN JEREME M
    Chief Financial Officer
    $357,796
    @ $74.17 · 2025-09-02
    BROWN MICHAEL JON
    Officer
    $40,145
    @ $80.29 · 2025-08-15
    STERN SADIE
    Officer
    $130,459
    @ $88.99 · 2025-07-28
    BROWN MICHAEL JON
    Officer
    $43,015
    @ $86.03 · 2025-07-15
    STERN SADIE
    Officer
    $124,698
    @ $85.06 · 2025-06-26
    BROWN MICHAEL JON
    Officer
    $41,400
    @ $82.80 · 2025-06-16
    STERN SADIE
    Officer
    $526,318
    @ $85.11 · 2025-05-27
    BROWN MICHAEL JON
    Officer
    $842,849
    @ $84.28 · 2025-05-23
    HELLER BRIDGETTE P
    Director
    $24,756
    @ $70.33 · 2025-03-17
    SYLVAIN JEREME M
    Chief Financial Officer
    $844,632
    @ $70.38 · 2025-03-12
    STERN SADIE
    Officer
    $786,568
    @ $70.38 · 2025-03-12
    LEACH JACOB STEVEN
    Chief Operating Officer
    $990,670
    @ $70.38 · 2025-03-12
    SAYER KEVIN R
    Chief Executive Officer
    $2.29M
    @ $70.38 · 2025-03-12
    BROWN MICHAEL JON
    Officer
    $914,941
    @ $70.38 · 2025-03-12
    SYLVAIN JEREME M
    Chief Financial Officer
    $516,830
    @ $73.83 · 2025-03-10
    SYLVAIN JEREME M
    Chief Financial Officer
    $181,650
    @ $86.91 · 2025-01-29
    STERN SADIE
    Officer
    $181,911
    @ $86.91 · 2025-01-29
    LEACH JACOB STEVEN
    Chief Operating Officer
    $228,932
    @ $86.91 · 2025-01-29
    DOLAN MATTHEW VINCENT
    Officer
    $102,820
    @ $86.91 · 2025-01-29
    SAYER KEVIN R
    Chief Executive Officer
    $2.90M
    @ $86.91 · 2025-01-29
    STERN SADIE
    Officer
    $32,593
    @ $76.87 · 2024-12-16
    SYLVAIN JEREME M
    Chief Financial Officer
    $57,191
    @ $76.87 · 2024-12-16
    LEACH JACOB STEVEN
    Chief Operating Officer
    $57,191
    @ $76.87 · 2024-12-16
    HELLER BRIDGETTE P
    Director
    $76,870
    @ $76.87 · 2024-12-16
    STERN SADIE
    Officer
    $318,275
    @ $74.73 · 2024-11-20
    SYLVAIN JEREME M
    Chief Financial Officer
    $264,285
    @ $75.51 · 2024-11-15
    HELLER BRIDGETTE P
    Director
    $70,000
    @ $70.00 · 2024-09-16
    STERN SADIE
    Officer
    $29,458
    @ $69.15 · 2024-09-09
    SYLVAIN JEREME M
    Chief Financial Officer
    $51,586
    @ $69.15 · 2024-09-09
    LEACH JACOB STEVEN
    Chief Operating Officer
    $51,586
    @ $69.15 · 2024-09-09
    BROWN MICHAEL JON
    Officer
    $48,020
    @ $70.00 · 2024-08-30
    BROWN MICHAEL JON
    Officer
    $45,347
    @ $69.55 · 2024-07-31
    BROWN MICHAEL JON
    Officer
    $75,317
    @ $114.29 · 2024-06-28
    HELLER BRIDGETTE P
    Director
    $113,550
    @ $113.55 · 2024-06-14
    STERN SADIE
    Officer
    $49,127
    @ $115.05 · 2024-06-10
    SYLVAIN JEREME M
    Chief Financial Officer
    $85,713
    @ $115.05 · 2024-06-10
    LEACH JACOB STEVEN
    Chief Operating Officer
    $85,713
    @ $115.05 · 2024-06-10
    BROWN MICHAEL JON
    Officer
    $77,744
    @ $119.24 · 2024-05-31
    DOLAN MATTHEW VINCENT
    Officer
    $306,703
    @ $126.58 · 2024-05-15
    BROWN MICHAEL JON
    Officer
    $79,411
    @ $126.25 · 2024-04-30
    DOLAN MATTHEW VINCENT
    Officer
    $274,242
    @ $137.81 · 2024-04-15
    SAYER KEVIN R
    Chief Executive Officer
    $6.86M
    @ $138.30 · 2024-04-08
    BROWN MICHAEL JON
    Officer
    $367,472
    @ $140.04 · 2024-03-28
    STERN SADIE
    Officer
    $579,180
    @ $140.00 · 2024-03-25
    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

    Learn more →
    DXCM
    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.
    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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    DXCM
    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)
    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 DXCM Full AnalysisView UNH Full Analysis
    DexCom, Inc. (DXCM) vs UnitedHealth Group Incorporated (UNH) Stock Comparison | SafetyMargin.io