Compare StocksTMO vs XOM

Thermo Fisher Scientific Inc (TMO) vs ExxonMobil Holdings Corporation (XOM): Which Is the Better Buy in 2026?

As of 2026-08-03, TMO is undervalued at $574, with a DCF intrinsic value of $151245065994 and a margin of safety of 100%. XOM is undervalued at $155, with an intrinsic value of $459379071521 and a margin of safety of 100%. Of the two, XOM has the wider margin of safety.

TMO
Thermo Fisher Scientific Inc
$574.30
VS
XOM
ExxonMobil Holdings Corporation
$155.44

Risks

TMO
  • Altman Z-Score of 1.54 places the company in the distress zone — financial patterns resemble those of companies that experienced bankruptcy.
  • 21 insider sales with no purchases over the past 12 months — a persistent pattern of insider selling.
XOM
  • ROIC has declined by 12.0 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 26.2x is 104% above the historical average of 12.8x — the stock trades at a premium to its own history.

Key Valuation Metrics

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TMO
XOM
Valuation
$6.24B
Free Cash Flow
$20.67B
N/A
FCF Yield
N/A
30.86
Trailing P/E
26.17
20.88
Forward P/E
14.69
Quality & Moat
7.20%
ROIC
14.66%
13.51%
ROE
12.58%
40.99%
Gross Margin
29.77%
1.87
PEG Ratio
1.32
Balance Sheet Safety
0.73
Net Debt / Equity
0.12
N/A
Interest Coverage
N/A
3.28
Net Debt / EBITDA
0.47
0.33%
Dividend Yield
2.65%
TMO: 2Ties: 1XOM: 8
TMOXOM

Historical Fundamentals

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TMO

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.

XOM

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

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TMO
$0.00
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$17.29B
Δ Market Cap
+$28.76
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
XOM
$0.00
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$49.66B
Δ Market Cap
+$10.04
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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TMO
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $574.30
Fair Value: $151245065993.58
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
XOM
100.0% Margin of Safety
Price is 100.0% below estimated fair value
Current Price: $155.44
Fair Value: $459379071520.71
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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TMO

What growth rate is the market pricing in at $574?

-12.7%
Market-Implied Owner Earnings Growth
Standard FCF implies -8.9%

The market implies -12.7% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding -8.9%, reflecting heavy growth investment expected to generate future returns.

XOM

What growth rate is the market pricing in at $155?

-30.0%
Market-Implied FCF Growth Rate

Market below historical growth — potential opportunity.

Economic Moat Score

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TMO
60/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None

Narrow moat with margin stability as the key competitive advantage. Improving roic consistency 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.
XOM
48/100
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.

Forensic Accounting

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TMO
-2.47
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.
XOM
-2.74
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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TMO
Insiders 0.1%Institutions 93.5%Retail & Other 6.4%
No. of Institutional Holders3,509
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.
XOM
Insiders 0.1%Institutions 68.8%Retail & Other 31.2%
No. of Institutional Holders5,341
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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TMO
0
Buys (3M)
0
Buys (12M)
CHAI NELSON J
Director
$11,038
@ $551.90 · 2024-12-09
Open market purchases · includes direct & indirect ownership · excludes option exercises
XOM
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
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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TMO
1
Sells (3M)
21
Sells (12M)
Total value (12M): $110.60M
PETTITI GIANLUCA
President
$226,000
@ $565.00 · 2026-07-27
PETTITI GIANLUCA
President
$185,064
@ $462.66 · 2026-04-27
SHAFER MICHAEL D
Officer
$802,536
@ $499.40 · 2026-03-11
CASPER MARC N
Chief Executive Officer
$2.06M
@ $514.82 · 2026-03-05
CASPER MARC N
Chief Executive Officer
$5.08M
@ $507.75 · 2026-03-04
PETTITI GIANLUCA
Officer
$216,480
@ $541.20 · 2026-02-09
LAGARDE MICHEL
Chief Operating Officer
$12.42M
@ $563.56 · 2025-12-04
LAGARDE MICHEL
Chief Operating Officer
$36.13M
@ $582.68 · 2025-12-03
LOWERY FREDERICK M.
Officer
$8.15M
@ $589.81 · 2025-12-02
SHAFER MICHAEL D
Officer
$6.43M
@ $600.00 · 2025-11-25
LAGARDE MICHEL
Chief Operating Officer
$2.76M
@ $594.42 · 2025-11-13
BRITT LISA P
Officer
$622,136
@ $588.59 · 2025-11-12
PETTITI GIANLUCA
Officer
$1.73M
@ $580.00 · 2025-11-10
BRITT LISA P
Officer
$5.84M
@ $571.62 · 2025-11-07
CASPER MARC N
Chief Executive Officer
$13.91M
@ $571.33 · 2025-10-27
PETTITI GIANLUCA
Officer
$229,660
@ $574.15 · 2025-10-24
CASPER MARC N
Chief Executive Officer
$200,201
@ $500.50 · 2025-09-05
HOLMES JOSEPH R.
Officer
$189,662
@ $492.63 · 2025-08-29
CASPER MARC N
Chief Executive Officer
$5.01M
@ $500.96 · 2025-08-22
CASPER MARC N
Chief Executive Officer
$248,046
@ $500.09 · 2025-08-20
CASPER MARC N
Chief Executive Officer
$8.15M
@ $452.99 · 2025-08-07
PETTITI GIANLUCA
Officer
$191,992
@ $479.98 · 2025-07-25
PETTITI GIANLUCA
Officer
$164,444
@ $411.11 · 2025-05-12
PETTITI GIANLUCA
Officer
$128,979
@ $429.93 · 2025-04-28
BOXER MICHAEL A
General Counsel
$2.01M
@ $532.59 · 2025-03-10
CASPER MARC N
Chief Executive Officer
$9.33M
@ $518.16 · 2025-03-05
SHAFER MICHAEL D
Officer
$945,038
@ $530.92 · 2025-03-03
LOWERY FREDERICK M.
Officer
$9.73M
@ $531.81 · 2025-02-24
CHAI NELSON J
Director
$8,449
@ $528.06 · 2025-02-19
PETTITI GIANLUCA
Officer
$175,677
@ $585.59 · 2025-02-04
WILLIAMSON STEPHEN
Chief Financial Officer
$11.58M
@ $589.36 · 2025-02-04
CASPER MARC N
Chief Executive Officer
$10.62M
@ $531.23 · 2024-12-03
CASPER MARC N
Chief Executive Officer
$3.26M
@ $557.89 · 2024-11-01
CASPER MARC N
Chief Executive Officer
$11.01M
@ $550.51 · 2024-10-31
CASPER MARC N
Chief Executive Officer
$11.05M
@ $552.46 · 2024-10-29
BOXER MICHAEL A
General Counsel
$1.12M
@ $560.16 · 2024-10-25
PETTITI GIANLUCA
Officer
$168,048
@ $560.16 · 2024-10-25
CASPER MARC N
Chief Executive Officer
$12.17M
@ $608.45 · 2024-09-04
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
XOM
0
Sells (3M)
0
Sells (12M)
No open market insider sales found.
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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TMO
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.
XOM
FearGreed
😏Greed(65/100)

"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

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TMO
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)
XOM
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 (65)
View TMO Full AnalysisView XOM Full Analysis

Frequently Asked Questions: TMO vs XOM

Is Thermo Fisher Scientific Inc or ExxonMobil Holdings Corporation more undervalued in 2026?

Based on our discounted cash flow model, XOM trades at a 100.0% margin of safety (intrinsic value $459379071521 vs. price $155), compared to TMO's 100.0% margin of safety (intrinsic $151245065994 vs. $574).

Which stock has a wider economic moat, Thermo Fisher Scientific Inc or ExxonMobil Holdings Corporation?

TMO scores 60/100 (Narrow moat), while XOM scores 48/100 (Narrow moat). The moat score measures competitive advantage durability across ROIC consistency, margin stability, revenue predictability, and reinvestment efficiency.

Is Thermo Fisher Scientific Inc in financial distress?

TMO's Altman Z-Score of 1.5 places it in the Distress zone, signaling elevated bankruptcy risk. XOM scores 2.5 (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, Thermo Fisher Scientific Inc or ExxonMobil Holdings Corporation?

XOM earns 14.7% ROIC versus TMO's 7.2%. 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, Thermo Fisher Scientific Inc's or ExxonMobil Holdings Corporation's?

TMO's dividend earns a safety score of 94/100 (Very Safe), compared to XOM's 69/100 (Safe). TMO has raised its dividend for 3 consecutive years.