Compare Stocks › AMT vs TMO
American Tower Corporation (AMT) vs Thermo Fisher Scientific Inc. (TMO)
AMT
American Tower Corporation
$182.76
VS
TMO
Thermo Fisher Scientific Inc.
$470.21
Rewards
AMT
- ★Gross margin of 74.2% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
- ★Free cash flow has grown at a 27.6% CAGR over the past 4 years, demonstrating strong earnings power growth.
- ★Return on equity has consistently exceeded 20% over 4 years, indicating efficient use of shareholder capital.
TMO
- ★Dividend yield of 0.37% with a consistent or growing payout over the past 4 years.
- ★Altman Z-Score of 3.85 indicates very low bankruptcy risk — the company is firmly in the safe zone.
Risks
AMT
- ⚠FCF yield of 5.3% suggests reasonable valuation assuming continued moderate growth.
- ⚠High leverage (4.34x debt/equity) combined with thin interest coverage (-1.0x) poses financial risk.
- ⚠Net debt/EBITDA of 6.3x indicates heavy leverage — it would take over 4 years of EBITDA to pay off net debt.
TMO
- ⚠Each dollar of retained earnings has produced only $0.17 of market value — shareholders may have been better served by dividends.
- ⚠PEG ratio of 2.85 indicates the stock is expensive relative to its expected growth — the market may be pricing in more growth than analysts project.
- ⚠Insiders have sold $8.2M worth of stock in the past 3 months — significant insider liquidation.
Key Valuation Metrics
Learn more →AMT
TMO
Valuation
$4.51B
Free Cash Flow
$6.29B
5.27%
FCF Yield
3.60%
33.91
Trailing P/E
26.52
26.45
Forward P/E
17.49
Quality & Moat
6.83%
ROIC
7.85%
24.43%
ROE
12.52%
74.18%
Gross Margin
41.08%
N/A
PEG Ratio
2.85
Balance Sheet Safety
4.34
Debt / Equity
0.77
N/A
Interest Coverage
N/A
6.30
Net Debt / EBITDA
2.81
3.77%
Dividend Yield
0.37%
AMT: 4Ties: 1TMO: 6
AMTTMO
Historical Fundamentals
Learn more →AMT
Price ÷ Earnings Per Share — how many years of current earnings you're paying for at today's price. Lower P/E may indicate undervaluation.
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.
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
Learn more →AMT
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-2.91B
Δ Market Cap
$-16.77B
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
> $1 created per $1 retained = Value Creator · < $1 created = Value Destroyer
TMO
$0.17
created per $1 retained over 3 years
Value Destroyer
Σ Retained
$17.29B
Δ Market Cap
+$2.95B
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
> $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 →AMT
1072.0% Overvalued
Price is 1072.0% above estimated fair value
Current Price: $182.76
Strongly undervalued
Strongly overvalued
Fair Value: $15.59
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
TMO
34.6% Overvalued
Price is 34.6% above estimated fair value
Current Price: $470.21
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Fair Value: $349.42
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
Reverse DCF — Market-Implied Growth
Learn more →AMT
What growth rate is the market pricing in at $183?
+20.5%
Market-Implied Owner Earnings Growth
Standard FCF implies +12.6%
The market implies +20.5% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +12.6%, reflecting heavy growth investment.
TMO
What growth rate is the market pricing in at $470?
+13.6%
Market-Implied Owner Earnings Growth
Standard FCF implies +14.4%
The market implies +13.6% Owner Earnings growth, above historical trends.
Standard FCF implies a demanding +14.4%, reflecting heavy growth investment.
Economic Moat Score
Learn more →AMT
51/100
Narrow Moat
70+ Wide · 40-69 Narrow · <40 None
Narrow moat with revenue predictability 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.
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.
Forensic Accounting
Learn more →AMT
-2.49
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.
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.
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 →AMT
Insiders 0.2%Institutions 96.1%Retail & Other 3.8%
No. of Institutional Holders2,413
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.
TMO
Insiders 0.2%Institutions 95.6%Retail & Other 4.3%
No. of Institutional Holders3,620
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 →AMT
1
Buys (3M)
2
Buys (12M)
Total value (12M): $1.49M
KALATHUR RAJESH
Director
$494,936
@ $185.30 · 2026-03-10
REILLY EUGENE F
Director
$994,110
@ $178.99 · 2025-10-31
Open market purchases · includes direct & indirect ownership · excludes option exercises
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
Open market purchases · includes direct & indirect ownership · excludes option exercises.
Insider Selling Activity
Learn more →AMT
6
Sells (3M)
7
Sells (12M)
Total value (12M): $22.01M
VONDRAN STEVEN OWEN
Chief Executive Officer
$6.31M
@ $188.46 · 2026-03-04
DOWLING RUTH T
General Counsel
$128,564
@ $188.51 · 2026-03-04
NOEL EUGENE M
Chief Operating Officer
$7.87M
@ $191.05 · 2026-03-02
MEYER ROBERT JOSEPH JR
Officer
$831,695
@ $186.73 · 2026-02-27
DOWLING RUTH T
General Counsel
$122,121
@ $186.16 · 2026-02-27
SMITH RODNEY M
Chief Financial Officer
$6.60M
@ $192.09 · 2026-02-17
FONT JUAN HERNANDEZ
Officer
$149,998
@ $208.33 · 2025-07-31
GOEL SANJAY
Officer
$863,680
@ $215.92 · 2025-03-17
MEYER ROBERT JOSEPH JR
Officer
$1.14M
@ $201.67 · 2025-02-27
REEVE PAMELA D A
Director
$1.01M
@ $202.97 · 2025-02-26
SMITH RODNEY M
Chief Financial Officer
$3.14M
@ $189.70 · 2025-02-13
SMITH RODNEY M
Chief Financial Officer
$3.00M
@ $181.10 · 2025-01-16
GOEL SANJAY
Officer
$1.19M
@ $238.00 · 2024-09-13
NOEL EUGENE M
Officer
$7.95M
@ $240.00 · 2024-09-10
PUECH OLIVIER
Officer
$4.37M
@ $230.00 · 2024-09-03
PUECH OLIVIER
Officer
$2.26M
@ $226.35 · 2024-08-26
MEYER ROBERT JOSEPH JR
Officer
$508,020
@ $232.93 · 2024-08-02
VONDRAN STEVEN OWEN
Chief Executive Officer
$4.95M
@ $230.00 · 2024-08-02
PUECH OLIVIER
Officer
$2.33M
@ $233.27 · 2024-08-02
GOEL SANJAY
Officer
$1.13M
@ $235.39 · 2024-08-02
GOEL SANJAY
Officer
$702,061
@ $200.36 · 2024-06-04
HORMATS ROBERT D.
Director
$128,450
@ $183.50 · 2024-05-03
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
TMO
4
Sells (3M)
22
Sells (12M)
Total value (12M): $110.68M
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
CASPER MARC N
Chief Executive Officer
$6.17M
@ $617.21 · 2024-07-31
CASPER MARC N
Chief Executive Officer
$9.88M
@ $606.12 · 2024-07-30
HOLMES JOSEPH R.
Officer
$525,484
@ $611.03 · 2024-07-26
BRITT LISA P
Officer
$2.22M
@ $613.02 · 2024-07-26
BOXER MICHAEL A
General Counsel
$1.20M
@ $600.85 · 2024-07-26
PETTITI GIANLUCA
Officer
$180,255
@ $600.85 · 2024-07-26
CASPER MARC N
Chief Executive Officer
$11.37M
@ $568.72 · 2024-06-04
LAGARDE MICHEL
Chief Operating Officer
$11.80M
@ $590.05 · 2024-05-14
WILLIAMSON STEPHEN
Chief Financial Officer
$12.96M
@ $591.27 · 2024-05-13
CASPER MARC N
Chief Executive Officer
$5.74M
@ $573.74 · 2024-05-01
CASPER MARC N
Chief Executive Officer
$11.48M
@ $574.18 · 2024-04-30
BOXER MICHAEL A
General Counsel
$1.14M
@ $567.94 · 2024-04-26
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 →AMT
😐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.
TMO
😨Fear(40/100)
"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
Learn more →AMT
⚪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)
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: Fear (40)