Compare StocksCOP vs MRK

ConocoPhillips (COP) vs Merck & Company, Inc. (MRK): Which Is the Better Buy in 2026?

As of 2026-08-03, COP is fairly valued at $120, with a DCF intrinsic value of $113 and a margin of safety of -7%. MRK is undervalued at $130, with an intrinsic value of $1474147659576 and a margin of safety of 100%. Of the two, MRK has the wider margin of safety.

COP
ConocoPhillips
$120.48
VS
MRK
Merck & Company, Inc.
$130.20

Rewards

COP
    MRK
    • Gross margin of 76.7% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
    • Each dollar of retained earnings has created $4.94 of earning power — management is an exceptional capital allocator.
    • Management has timed buybacks well — 2 out of 3 years showed value-accretive repurchases.

    Risks

    COP
    • ROIC has declined by 17.9 percentage points over the past 4 years, which may signal competitive erosion.
    • Buybacks have been poorly timed — 3 out of 4 years involved repurchases at relatively expensive valuations.
    • Trailing P/E of 20.4x is 69% above the historical average of 12.1x — the stock trades at a premium to its own history.
    MRK
    • PEG ratio of 12.06 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
    • 14 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
    • Free cash flow has declined at a 5.6% CAGR over the past 4 years — a concerning trend.

    Key Valuation Metrics

    Learn more →
    COP
    MRK
    Valuation
    $7.24B
    Free Cash Flow
    $14.05B
    4.93%
    FCF Yield
    N/A
    20.42
    Trailing P/E
    36.68
    13.38
    Forward P/E
    13.45
    Quality & Moat
    11.77%
    ROIC
    21.10%
    11.28%
    ROE
    18.94%
    45.59%
    Gross Margin
    76.73%
    1.02
    PEG Ratio
    12.06
    Balance Sheet Safety
    0.26
    Net Debt / Equity
    0.95
    N/A
    Interest Coverage
    N/A
    0.73
    Net Debt / EBITDA
    1.47
    2.79%
    Dividend Yield
    2.61%
    COP: 5Ties: 2MRK: 4
    COPMRK

    Historical Fundamentals

    Learn more →
    COP

    Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

    MRK

    Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

    Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation. The dashed forward point is the forward P/E — today's price ÷ analyst consensus EPS.

    $1 Retained Earnings Test

    Learn more →
    COP
    $-1.99
    created per $1 retained over 3 years
    Market Cap Declined
    Σ Retained
    $14.97B
    Δ Market Cap
    $-29.73B
    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
    MRK
    $-0.00
    created per $1 retained over 3 years
    Market Cap Declined
    Σ Retained
    $12.28B
    Δ Market Cap
    $-5.69
    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

    Learn more →
    COP
    39.4% Overvalued
    Price is 39.4% above estimated fair value
    Current Price: $120.48
    Fair Value: $86.45
    Strongly undervalued
    Undervalued
    Fairly valued
    Overvalued
    Strongly overvalued
    MRK
    100.0% Margin of Safety
    Price is 100.0% below estimated fair value
    Current Price: $130.20
    Fair Value: $1474147659576.45
    Strongly undervalued
    Undervalued
    Fairly valued
    Overvalued
    Strongly overvalued

    Reverse DCF — Market-Implied Growth

    Learn more →
    COP

    What growth rate is the market pricing in at $120?

    +8.1%
    Market-Implied Owner Earnings Growth
    Standard FCF implies +9.4%

    The market implies +8.1% Owner Earnings growth, above historical trends.

    Standard FCF implies a demanding +9.4%, reflecting heavy growth investment.

    MRK

    What growth rate is the market pricing in at $130?

    -26.9%
    Market-Implied Owner Earnings Growth
    Standard FCF implies -20.2%

    The market implies -26.9% Owner Earnings growth, below historical trends — potential opportunity.

    Standard FCF implies a more demanding -20.2%, reflecting heavy growth investment expected to generate future returns.

    Economic Moat Score

    Learn more →
    COP
    38/100
    No Moat
    70+ Wide · 40-69 Narrow · <40 None

    No durable moat detected, though roic consistency 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.
    MRK
    68/100
    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

    Learn more →
    COP
    -2.89
    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.
    MRK
    -2.31
    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

    Learn more →
    COP
    Insiders 0.1%Institutions 87.3%Retail & Other 12.6%
    No. of Institutional Holders3,062
    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.
    MRK
    Insiders 0.1%Institutions 82.1%Retail & Other 17.8%
    No. of Institutional Holders4,770
    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

    Learn more →
    COP
    0
    Buys (3M)
    1
    Buys (12M)
    Total value (12M): $500,000
    MCRAVEN WILLIAM H.
    Director
    $500,000
    @ $86.69 · 2025-11-10
    JOHNSON KIRK L
    Officer
    $499,472
    @ $94.24 · 2025-06-16
    MURTI ARJUN N
    Director
    $239,675
    @ $95.87 · 2024-12-20
    WALKER R A
    Director
    $1.02M
    @ $97.80 · 2024-12-17
    Open market purchases · includes direct & indirect ownership · excludes option exercises
    MRK
    0
    Buys (3M)
    0
    Buys (12M)
    THULIN INGE G
    Director
    $250,000
    @ $88.28 · 2025-02-06
    BAKER DOUGLAS M JR
    Director
    $1.33M
    @ $88.50 · 2025-02-05
    Open market purchases · includes direct & indirect ownership · excludes option exercises

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

    Insider Selling Activity

    Learn more →
    COP
    1
    Sells (3M)
    12
    Sells (12M)
    Total value (12M): $127.52M
    MULLIGAN SHARMILA
    Director
    $234,906
    @ $119.00 · 2026-06-10
    ROSE KELLY BRUNETTI
    General Counsel
    $1.00M
    @ $130.03 · 2026-03-24
    OLDS NICHOLAS G
    Officer
    $888,651
    @ $127.06 · 2026-03-23
    LANCE RYAN MICHAEL
    Chief Executive Officer
    $64.49M
    @ $127.26 · 2026-03-20
    LUNDQUIST ANDREW D
    Officer
    $4.13M
    @ $119.68 · 2026-03-13
    HRAP HEATHER GRACE
    Officer
    $317,631
    @ $119.68 · 2026-03-13
    OLDS NICHOLAS G
    Officer
    $1.73M
    @ $119.36 · 2026-03-12
    HAYNES-WELSH KONTESSA S.
    Officer
    $1.24M
    @ $120.07 · 2026-03-12
    OLDS NICHOLAS G
    Officer
    $1.41M
    @ $116.37 · 2026-03-11
    ROSE KELLY BRUNETTI
    General Counsel
    $1.00M
    @ $118.04 · 2026-03-09
    LEACH TIMOTHY ALLEN
    Director
    $4.75M
    @ $118.79 · 2026-03-06
    LANCE RYAN MICHAEL
    Chief Executive Officer
    $46.32M
    @ $92.50 · 2025-12-19
    LEACH TIMOTHY ALLEN
    Director
    $6.00M
    @ $108.11 · 2024-08-13
    Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
    MRK
    0
    Sells (3M)
    14
    Sells (12M)
    Total value (12M): $42.04M
    GUINDO CHIRFI
    Officer
    $1.21M
    @ $121.46 · 2026-02-12
    LI DEAN Y
    Officer
    $1.20M
    @ $117.52 · 2026-02-10
    GUINDO CHIRFI
    Officer
    $1.18M
    @ $118.41 · 2026-02-09
    ZACHARY JENNIFER L
    General Counsel
    $14.49M
    @ $119.15 · 2026-02-09
    OOSTHUIZEN JOHANNES JACOBUS
    Officer
    $1.83M
    @ $121.87 · 2026-02-06
    WILLIAMS DAVID MICHAEL
    Chief Technology Officer
    $609,525
    @ $121.91 · 2026-02-06
    DELUCA RICHARD ROBERT JR.
    Officer
    $4.56M
    @ $120.92 · 2026-02-06
    GUINDO CHIRFI
    Officer
    $2.44M
    @ $121.88 · 2026-02-05
    SMART DALTON E. III
    Officer
    $765,920
    @ $119.67 · 2026-02-04
    LI DEAN Y
    Officer
    $1.79M
    @ $118.77 · 2026-02-04
    LITCHFIELD CAROLINE
    Chief Financial Officer
    $5.02M
    @ $119.61 · 2026-02-04
    DAVIS ROBERT M
    Chief Executive Officer
    $5.60M
    @ $118.04 · 2026-02-04
    DOWNING CRISTAL N.
    Officer
    $616,395
    @ $87.00 · 2025-11-10
    WILLIAMS DAVID MICHAEL
    Chief Technology Officer
    $720,040
    @ $83.59 · 2025-11-03
    SMART DALTON E. III
    Officer
    $352,723
    @ $82.76 · 2025-04-25
    OOSTHUIZEN JOHANNES JACOBUS
    Officer
    $714,745
    @ $84.09 · 2025-02-19
    WILLIAMS DAVID MICHAEL
    Chief Technology Officer
    $512,057
    @ $85.34 · 2025-02-13
    DOWNING CRISTAL N.
    Officer
    $209,551
    @ $88.76 · 2025-02-06
    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 →
    COP
    FearGreed
    😏Greed(61/100)

    "Market is optimistic — be cautious and ensure you have a margin of safety"

    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.
    MRK
    FearGreed
    😏Greed(67/100)

    "Market is optimistic — be cautious and ensure you have a margin of safety"

    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

    Learn more →
    COP
    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: Greed (61)
    MRK
    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: Greed (67)
    View COP Full AnalysisView MRK Full Analysis

    Frequently Asked Questions: COP vs MRK

    Is ConocoPhillips or Merck & Company, Inc. more undervalued in 2026?

    Based on our discounted cash flow model, MRK trades at a 100.0% margin of safety (intrinsic value $1474147659576 vs. price $130), compared to COP's -6.6% margin of safety (intrinsic $113 vs. $120).

    Which stock has a wider economic moat, ConocoPhillips or Merck & Company, Inc.?

    MRK scores 68/100 (Narrow moat), while COP scores 38/100 (None moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

    Is Merck & Company, Inc. in financial distress?

    MRK's Altman Z-Score of 1.9 places it in the Grey zone, signaling elevated bankruptcy risk. COP scores 2.8 (Grey zone). The Altman Z-Score is a five-factor model that predicts insolvency within two years; scores below 1.81 indicate significant distress.

    Which stock has higher return on invested capital, ConocoPhillips or Merck & Company, Inc.?

    MRK earns 21.1% ROIC versus COP's 11.8%. A higher ROIC means the company generates more profit per dollar of capital employed, a hallmark of durable competitive advantage in Buffett-style analysis.

    Which dividend is safer, ConocoPhillips's or Merck & Company, Inc.'s?

    MRK's dividend earns a safety score of 79/100 (Safe), compared to COP's 78/100 (Safe). MRK has raised its dividend for 3 consecutive years.