Compare StocksCSGP vs PFE

CoStar Group, Inc. (CSGP) vs Pfizer Inc. (PFE)

CSGP
CoStar Group, Inc.
$42.82
VS
PFE
Pfizer Inc.
$27.41

Rewards

CSGP
  • Gross margin of 78.9% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • 4 insider purchases totaling $3.5M with no sells in the past 3 months — insiders are putting their own money in.
  • Altman Z-Score of 8.53 indicates very low bankruptcy risk — the company is firmly in the safe zone.
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

CSGP
  • ROIC has declined by 5.1 percentage points over the observed period, which may signal competitive erosion.
  • FCF yield of 0.8% is below 3%, meaning the market is pricing in substantial future growth to justify the current price.
  • Trailing P/E of 2141.0x is 128% above the historical average of 937.7x — 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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CSGP
PFE
Valuation
$143.75M
Free Cash Flow
$13.43B
0.79%
FCF Yield
8.61%
2141.00
Trailing P/E
20.15
24.11
Forward P/E
9.69
Quality & Moat
1.48%
ROIC
7.67%
0.08%
ROE
8.96%
78.87%
Gross Margin
75.81%
N/A
PEG Ratio
N/A
Balance Sheet Safety
0.14
Debt / Equity
0.78
N/A
Interest Coverage
N/A
-2.34
Net Debt / EBITDA
2.10
N/A
Dividend Yield
6.28%
CSGP: 2Ties: 2PFE: 6
CSGPPFE

Historical Fundamentals

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CSGP

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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CSGP
$-6.39
created per $1 retained over 3 years
Market Cap Declined
Σ Retained
$521.0M
Δ Market Cap
$-3.33B
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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CSGP
1718.6% Overvalued
Price is 1718.6% above estimated fair value
Current Price: $42.82
Fair Value: $2.35
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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CSGP

What growth rate is the market pricing in at $43?

+60.0%
Market-Implied Owner Earnings Growth
Standard FCF implies +32.8%

The market implies +60.0% Owner Earnings growth, above historical trends.

Standard FCF implies a demanding +32.8%, reflecting heavy growth investment.

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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CSGP
37/100
No Moat
70+ Wide · 40-69 Narrow · <40 None

No durable moat detected, though revenue predictability 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.
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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CSGP
-2.07
Possible 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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CSGP
Insiders 1.2%Institutions 104.8%
No. of Institutional Holders1,218
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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CSGP
4
Buys (3M)
4
Buys (12M)
Total value (12M): $3.48M
SAMS LOUISE S.
Director
$48,360
@ $48.36 · 2026-03-06
GLASER RACHEL C
Director
$44,940
@ $44.94 · 2026-03-02
SAINT FREDERICK G
Officer
$906,600
@ $45.33 · 2026-03-02
FLORANCE ANDREW COLDEN
Chief Executive Officer
$2.48M
@ $44.52 · 2026-02-27
FLORANCE ANDREW COLDEN
Chief Executive Officer
$1.10M
@ $74.67 · 2024-10-25
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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CSGP
0
Sells (3M)
6
Sells (12M)
Total value (12M): $7.09M
HILL JOHN W
Director
$154,530
@ $68.68 · 2025-11-13
CANN CYNTHIA CAMMETT
Officer
$126,642
@ $68.79 · 2025-11-13
SAINT FREDERICK G
Officer
$2.26M
@ $90.33 · 2025-08-28
CANN CYNTHIA CAMMETT
Officer
$188,764
@ $92.85 · 2025-07-28
SAINT FREDERICK G
Officer
$2.33M
@ $93.23 · 2025-07-28
SAINT FREDERICK G
Officer
$2.03M
@ $81.10 · 2025-06-11
CANN CYNTHIA CAMMETT
Officer
$334,259
@ $78.48 · 2025-03-10
HILL JOHN W
Director
$209,939
@ $76.76 · 2024-12-10
NASSETTA CHRISTOPHER J
Director
$135,136
@ $80.39 · 2024-11-27
DESMARAIS MICHAEL J
Officer
$439,340
@ $79.88 · 2024-11-26
KLEIN MICHAEL R
Director
$5.35M
@ $74.69 · 2024-10-25
HILL JOHN W
Director
$103,562
@ $78.16 · 2024-07-30
SAINT FREDERICK G
Officer
$221,075
@ $88.43 · 2024-05-16
RUGGLES LISA C.
Officer
$1.82M
@ $91.15 · 2024-05-09
WHEELER SCOTT T
Chief Financial Officer
$11.37M
@ $92.61 · 2024-04-26
DESMARAIS MICHAEL J
Officer
$352,146
@ $92.67 · 2024-04-26
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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CSGP
FearGreed
😨Fear(27/100)

"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.
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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CSGP
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 (27)
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 CSGP Full AnalysisView PFE Full Analysis
CoStar Group, Inc. (CSGP) vs Pfizer Inc. (PFE) Stock Comparison | SafetyMargin.io