Compare StocksLMT vs MRK

Lockheed Martin Corporation (LMT) vs Merck & Co., Inc. (MRK)

LMT
Lockheed Martin Corporation
$512.77
VS
MRK
Merck & Co., Inc.
$112.16

Rewards

LMT
  • Lockheed Martin Corporation has maintained ROIC above 15% for 4 consecutive years, indicating a durable competitive advantage.
  • Lockheed Martin Corporation scores 74/100 on the Economic Moat Score (Wide Moat), with revenue predictability as the strongest competitive dimension.
  • Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
MRK
  • Gross margin of 76.6% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Each dollar of retained earnings has created $3.38 of earning power — management is an exceptional capital allocator.
  • Dividend yield of 3.03% with a consistent or growing payout over the past 4 years.

Risks

LMT
  • Gross margin of 9.9% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • FCF yield of 5.8% suggests reasonable valuation assuming continued moderate growth.
  • High leverage (2.76x debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
MRK
  • PEG ratio of 3.43 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
  • 12 insider sales totaling $40.7M with no purchases in the past 3 months — insiders are reducing their exposure.
  • Free cash flow has declined at a 5.6% CAGR over the past 4 years — a concerning trend.

Key Valuation Metrics

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LMT
MRK
Valuation
$6.91B
Free Cash Flow
N/A
5.84%
FCF Yield
N/A
24.82
Trailing P/E
31.51
15.97
Forward P/E
11.52
Quality & Moat
23.16%
ROIC
19.18%
66.99%
ROE
34.66%
9.91%
Gross Margin
76.60%
1.08
PEG Ratio
3.43
Balance Sheet Safety
2.76
Debt / Equity
0.96
N/A
Interest Coverage
N/A
2.35
Net Debt / EBITDA
1.23
2.63%
Dividend Yield
3.03%
LMT: 4Ties: 1MRK: 5
LMTMRK

Historical Fundamentals

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LMT

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

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.

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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LMT
$-1.60
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$8.03B
Δ Market Cap
$-12.81B
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
$-1.72
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$12.28B
Δ Market Cap
$-21.09B
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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LMT
35.6% Overvalued
Price is 35.6% above estimated fair value
Current Price: $512.77
Fair Value: $378.20
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
MRK
78.5% Margin of Safety
Price is 78.5% below estimated fair value
Current Price: $112.16
Fair Value: $522.77
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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LMT

What growth rate is the market pricing in at $513?

+11.9%
Market-Implied Owner Earnings Growth
Standard FCF implies +7.6%

The market implies +11.9% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +7.6%, reflecting heavy growth investment.

MRK

Requires positive FCF to compute implied growth rate.

Economic Moat Score

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LMT
74/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by revenue predictability. Margin Stability is the area most vulnerable to competitive pressure.

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

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LMT
-2.23
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

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LMT
Insiders 0.1%Institutions 75.0%Retail & Other 24.9%
No. of Institutional Holders3,257
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 81.3%Retail & Other 18.6%
No. of Institutional Holders4,628
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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LMT
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
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

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LMT
3
Sells (3M)
4
Sells (12M)
Total value (12M): $10.29M
CAHILL TIMOTHY S
Officer
$3.00M
@ $649.47 · 2026-03-11
ULMER GREGORY M
Officer
$1.87M
@ $658.08 · 2026-02-27
HILL STEPHANIE C
Officer
$1.59M
@ $660.64 · 2026-02-24
ST JOHN FRANK A
Chief Operating Officer
$3.83M
@ $491.04 · 2025-10-23
PAUL HARRY EDWARD III
Officer
$312,923
@ $442.61 · 2025-02-26
HILL STEPHANIE C
Officer
$2.12M
@ $442.51 · 2025-02-26
LIGHTFOOT ROBERT M JR
Officer
$1.42M
@ $442.42 · 2025-02-26
HILL STEPHANIE C
Officer
$1.78M
@ $542.72 · 2024-08-01
CAHILL TIMOTHY S
Officer
$2.05M
@ $515.36 · 2024-07-24
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
MRK
12
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
DELUCA RICHARD ROBERT JR.
Officer
$4.56M
@ $120.92 · 2026-02-06
WILLIAMS DAVID MICHAEL
Chief Technology Officer
$609,525
@ $121.91 · 2026-02-06
OOSTHUIZEN JOHANNES JACOBUS
Officer
$1.83M
@ $121.87 · 2026-02-06
GUINDO CHIRFI
Officer
$2.44M
@ $121.88 · 2026-02-05
LI DEAN Y
Officer
$1.79M
@ $118.77 · 2026-02-04
DAVIS ROBERT M
Chief Executive Officer
$5.60M
@ $118.04 · 2026-02-04
LITCHFIELD CAROLINE
Chief Financial Officer
$5.02M
@ $119.61 · 2026-02-04
SMART DALTON E. III
Officer
$765,920
@ $119.67 · 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

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LMT
FearGreed
😨Fear(39/100)

"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.
MRK
FearGreed
😐Neutral(55/100)

"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.

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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LMT
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 (39)
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: Neutral (55)
View LMT Full AnalysisView MRK Full Analysis
LMT vs MRK: Which Is the Better Buy? | SafetyMargin.io