Compare StocksFIX vs PFE

Comfort Systems USA, Inc. (FIX) vs Pfizer Inc. (PFE)

FIX
Comfort Systems USA, Inc.
$1444.60
VS
PFE
Pfizer Inc.
$27.41

Rewards

FIX
  • Comfort Systems USA, Inc. has maintained ROIC above 10% for 4 consecutive years, suggesting solid business economics.
  • Comfort Systems USA, Inc. scores 82/100 on the Economic Moat Score (Wide Moat), with roic consistency as the strongest competitive dimension.
  • Free cash flow has grown at a 59.7% CAGR over the past 4 years, demonstrating strong earnings power growth.
PFE
  • Gross margin of 75.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Dividend yield of 6.28% with a consistent or growing payout over the past 4 years.
  • FCF yield of 8.6% is historically attractive — the business generates significant cash relative to its price.

Risks

FIX
  • Gross margin of 24.1% is low, suggesting a competitive or commodity-like market with limited pricing power.
  • FCF yield of 2.0% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Trailing P/E of 50.0x is 98% above the historical average of 25.2x — the stock trades at a premium to its own history.
PFE
  • ROIC has declined by 13.9 percentage points over the observed period, which may signal competitive erosion.
  • Free cash flow has declined at a 29.6% CAGR over the past 4 years — a concerning trend.

Key Valuation Metrics

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FIX
PFE
Valuation
$1.03B
Free Cash Flow
$13.43B
2.02%
FCF Yield
8.61%
50.00
Trailing P/E
20.15
32.61
Forward P/E
9.69
Quality & Moat
39.51%
ROIC
7.67%
41.76%
ROE
8.96%
24.13%
Gross Margin
75.81%
0.39
PEG Ratio
N/A
Balance Sheet Safety
0.20
Debt / Equity
0.78
N/A
Interest Coverage
N/A
-0.37
Net Debt / EBITDA
2.10
0.16%
Dividend Yield
6.28%
FIX: 4Ties: 1PFE: 6
FIXPFE

Historical Fundamentals

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FIX

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

PFE

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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FIX
$16.63
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$1.73B
Δ Market Cap
+$28.72B
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
PFE
N/A
Net losses over 3 years — test not applicable
Company had negative cumulative retained earnings
Σ Retained
$-10.61B
Δ Market Cap
$-146.18B
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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FIX
9.8% Overvalued
Price is 9.8% above estimated fair value
Current Price: $1444.60
Fair Value: $1315.72
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued
PFE
140.2% Overvalued
Price is 140.2% above estimated fair value
Current Price: $27.41
Fair Value: $11.41
Strongly undervalued
Undervalued
Fairly valued
Overvalued
Strongly overvalued

Reverse DCF — Market-Implied Growth

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FIX

What growth rate is the market pricing in at $1445?

+20.0%
Market-Implied Owner Earnings Growth
Standard FCF implies +19.9%

The market implies +20.0% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +19.9%, reflecting heavy growth investment expected to generate future returns.

PFE

What growth rate is the market pricing in at $27?

+11.8%
Market-Implied Owner Earnings Growth
Standard FCF implies +4.3%

The market implies +11.8% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +4.3%, reflecting heavy growth investment.

Economic Moat Score

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FIX
82/100
Wide Moat
70+ Wide · 40-69 Narrow · <40 None

Wide moat driven primarily by roic consistency. 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.
PFE
35/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though reinvestment efficiency 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 5 years of fundamental data.

Forensic Accounting

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FIX
-2.40
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.
PFE
-2.53
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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FIX
Insiders 1.3%Institutions 97.0%Retail & Other 1.7%
No. of Institutional Holders1,397
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.
PFE
Insiders 0.1%Institutions 67.7%Retail & Other 32.2%
No. of Institutional Holders3,693
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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FIX
0
Buys (3M)
0
Buys (12M)
No open market insider purchases found.
Open market purchases · includes direct & indirect ownership · excludes option exercises
PFE
0
Buys (3M)
0
Buys (12M)
BLAYLOCK RONALD E
Director
$499,072
@ $25.65 · 2025-02-13
GOTTLIEB SCOTT
Director
$28,240
@ $28.24 · 2024-10-30
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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FIX
9
Sells (3M)
32
Sells (12M)
Total value (12M): $126.81M
ANDERSON DARCY G
Director
$6.16M
@ $1369.74 · 2026-03-03
SHAEFF JULIE S
Officer
$3.16M
@ $1382.15 · 2026-03-03
REED TERRENCE M
Officer
$2.54M
@ $1419.80 · 2026-03-03
MYERS FRANKLIN
Director
$12.72M
@ $1472.56 · 2026-02-25
LANE BRIAN E
Chief Executive Officer
$13.61M
@ $1453.12 · 2026-02-25
SANDBROOK WILLIAM J
Director
$3.61M
@ $1443.32 · 2026-02-24
SKIDMORE CONSTANCE ELLEN
Director
$1.43M
@ $1425.00 · 2026-02-24
GEORGE WILLIAMIII
Chief Financial Officer
$12.91M
@ $1434.97 · 2026-02-23
MERCADO PABLO G
Director
$702,500
@ $1405.00 · 2026-02-23
HOWELL LAURA FINLEY
General Counsel
$996,163
@ $996.16 · 2025-12-04
GEORGE WILLIAMIII
Chief Financial Officer
$4.19M
@ $958.88 · 2025-12-01
LANE BRIAN E
Chief Executive Officer
$6.79M
@ $947.98 · 2025-11-24
ANDERSON DARCY G
Director
$3.83M
@ $958.72 · 2025-10-31
MYERS FRANKLIN
Director
$5.03M
@ $1006.68 · 2025-10-29
BULLS HERMAN E
Director
$2.03M
@ $1013.62 · 2025-10-29
MERCADO PABLO G
Director
$2.51M
@ $1005.41 · 2025-10-29
SANDBROOK WILLIAM J
Director
$1.08M
@ $721.89 · 2025-09-10
BULLS HERMAN E
Director
$2.13M
@ $710.00 · 2025-08-27
SANDBROOK WILLIAM J
Director
$482,702
@ $689.57 · 2025-08-25
MERCADO PABLO G
Director
$750,159
@ $695.88 · 2025-08-22
SHAEFF JULIE S
Officer
$964,460
@ $704.50 · 2025-08-12
GEORGE WILLIAMIII
Chief Financial Officer
$5.84M
@ $692.60 · 2025-08-08
LANE BRIAN E
Chief Executive Officer
$6.92M
@ $691.74 · 2025-08-07
MYERS FRANKLIN
Chairman of the Board
$3.08M
@ $683.57 · 2025-08-06
MCKENNA TRENT TIMOTHY
Chief Operating Officer
$3.15M
@ $716.63 · 2025-07-31
BULLS HERMAN E
Director
$1.25M
@ $500.01 · 2025-06-09
ANDERSON DARCY G
Director
$4.05M
@ $506.82 · 2025-06-06
GEORGE WILLIAMIII
Chief Financial Officer
$5.88M
@ $470.11 · 2025-05-13
SKIDMORE CONSTANCE ELLEN
Director
$452,980
@ $452.98 · 2025-05-12
ANDERSON DARCY G
Director
$1.29M
@ $431.66 · 2025-05-07
LANE BRIAN E
Chief Executive Officer
$6.47M
@ $431.66 · 2025-05-07
MERCADO PABLO G
Director
$784,980
@ $436.10 · 2025-05-05
MCKENNA TRENT TIMOTHY
Chief Operating Officer
$1.94M
@ $484.81 · 2024-11-22
LANE BRIAN E
Chief Executive Officer
$6.73M
@ $448.88 · 2024-11-13
GEORGE WILLIAMIII
Chief Financial Officer
$2.50M
@ $459.72 · 2024-11-08
MERCADO PABLO G
Director
$1.02M
@ $409.46 · 2024-11-05
MYERS FRANKLIN
Chairman of the Board
$4.68M
@ $390.18 · 2024-10-30
SHAEFF JULIE S
Officer
$814,881
@ $351.85 · 2024-08-29
ANDERSON DARCY G
Director
$1.19M
@ $336.19 · 2024-08-27
GEORGE WILLIAMIII
Chief Financial Officer
$1.94M
@ $332.16 · 2024-08-20
LANE BRIAN E
Chief Executive Officer
$4.94M
@ $329.55 · 2024-08-14
BULLS HERMAN E
Director
$1.18M
@ $337.41 · 2024-05-16
ANDERSON DARCY G
Director
$1.21M
@ $344.90 · 2024-05-07
Direct ownership only · excludes indirect, option exercises, planned (10b5-1) sales & derivatives
PFE
0
Sells (3M)
0
Sells (12M)
DAMICO JENNIFER B.
Officer
$64,825
@ $25.93 · 2025-03-04
DAMICO JENNIFER B.
Officer
$147,714
@ $28.66 · 2024-08-13
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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FIX
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.
PFE
FearGreed
😏Greed(64/100)

"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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FIX
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)
PFE
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 (64)
View FIX Full AnalysisView PFE Full Analysis
Comfort Systems USA, Inc. (FIX) vs Pfizer Inc. (PFE) Stock Comparison | SafetyMargin.io