Compare StocksBSX vs PFE

Boston Scientific Corporation (BSX) vs Pfizer Inc. (PFE)

BSX
Boston Scientific Corporation
$69.89
VS
PFE
Pfizer Inc.
$27.41

Rewards

BSX
  • Gross margin of 68.8% indicates strong pricing power — typical of businesses with significant intellectual property or brand strength.
  • Free cash flow has grown at a 55.0% CAGR over the past 4 years, demonstrating strong earnings power growth.
  • Each dollar of retained earnings has created $11.89 of market value — management is an exceptional capital allocator.
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

BSX
  • Insiders have sold $15.0M worth of stock in the past 3 months — significant insider liquidation.
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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BSX
PFE
Valuation
$3.24B
Free Cash Flow
$13.43B
3.13%
FCF Yield
8.61%
36.03
Trailing P/E
20.15
17.85
Forward P/E
9.69
Quality & Moat
8.57%
ROIC
7.67%
11.84%
ROE
8.96%
68.78%
Gross Margin
75.81%
1.95
PEG Ratio
N/A
Balance Sheet Safety
0.49
Debt / Equity
0.78
N/A
Interest Coverage
N/A
1.87
Net Debt / EBITDA
2.10
N/A
Dividend Yield
6.28%
BSX: 4Ties: 1PFE: 5
BSXPFE

Historical Fundamentals

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BSX

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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BSX
$11.89
created per $1 retained over 3 years
Exceptional Value Creator
Σ Retained
$6.32B
Δ Market Cap
+$75.08B
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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BSX
40.3% Overvalued
Price is 40.3% above estimated fair value
Current Price: $69.89
Fair Value: $49.80
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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BSX

What growth rate is the market pricing in at $70?

+16.9%
Market-Implied Owner Earnings Growth
Standard FCF implies +15.3%

The market implies +16.9% Owner Earnings growth, below historical trends — potential opportunity.

Standard FCF implies a more demanding +15.3%, 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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BSX
66/100
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 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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BSX
-2.51
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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BSX
Insiders 0.2%Institutions 95.0%Retail & Other 4.7%
No. of Institutional Holders2,511
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 Holders3,692
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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BSX
0
Buys (3M)
0
Buys (12M)
FITZGERALD JOSEPH MICHAEL
Officer
$4,515
@ $90.30 · 2024-12-03
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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BSX
1
Sells (3M)
22
Sells (12M)
Total value (12M): $107.94M
MAHONEY MICHAEL F
Chief Executive Officer
$15.04M
@ $93.49 · 2026-02-02
BUTCHER ARTHUR C
Officer
$1.76M
@ $101.55 · 2025-12-01
ZANE ELLEN M
Director
$1.27M
@ $98.28 · 2025-11-06
FITZGERALD JOSEPH MICHAEL
Officer
$4.97M
@ $99.47 · 2025-11-03
ZANE ELLEN M
Director
$1.31M
@ $101.38 · 2025-10-28
FITZGERALD JOSEPH MICHAEL
Officer
$4.92M
@ $98.47 · 2025-10-01
FITZGERALD JOSEPH MICHAEL
Officer
$5.27M
@ $105.43 · 2025-09-02
FITZGERALD JOSEPH MICHAEL
Officer
$5.23M
@ $104.63 · 2025-08-01
BUTCHER ARTHUR C
Officer
$1.81M
@ $104.63 · 2025-08-01
FUJIMORI YOSHIAKI
Director
$310,378
@ $106.99 · 2025-07-29
LUDWIG EDWARD J.
Director
$424,120
@ $106.03 · 2025-07-25
FITZGERALD JOSEPH MICHAEL
Officer
$5.35M
@ $106.97 · 2025-07-01
FITZGERALD JOSEPH MICHAEL
President
$5.80M
@ $102.88 · 2025-06-04
MAHONEY MICHAEL F
Chief Executive Officer
$17.05M
@ $103.69 · 2025-06-02
LUDWIG EDWARD J.
Director
$418,368
@ $104.59 · 2025-05-29
BROWN VANCE R
General Counsel
$513,583
@ $106.42 · 2025-05-21
SORENSON JOHN BRADLEY
Officer
$477,957
@ $104.54 · 2025-05-05
BUTCHER ARTHUR C
Officer
$1.77M
@ $102.06 · 2025-05-01
MAHONEY MICHAEL F
Chief Executive Officer
$16.85M
@ $102.48 · 2025-05-01
BROWN VANCE R
General Counsel
$458,904
@ $95.09 · 2025-04-21
MAHONEY MICHAEL F
Chief Executive Officer
$16.45M
@ $100.01 · 2025-04-01
BROWN VANCE R
General Counsel
$486,702
@ $100.85 · 2025-03-21
WOODWORTH EMILY
General Counsel
$800,897
@ $104.95 · 2025-03-04
WOODWORTH EMILY
Officer
$999,872
@ $101.13 · 2025-02-28
MIRVISS JEFFREY B
Officer
$766,921
@ $104.16 · 2025-02-25
ZANE ELLEN M
Director
$1.42M
@ $104.23 · 2025-02-24
BROWN VANCE R
General Counsel
$504,993
@ $104.64 · 2025-02-21
BRENNAN DANIEL J
Chief Financial Officer
$8.92M
@ $105.10 · 2025-02-19
SORENSON JOHN BRADLEY
Officer
$624,861
@ $104.84 · 2025-02-19
MIRVISS JEFFREY B
Officer
$159,078
@ $105.35 · 2025-02-19
SORENSON JOHN BRADLEY
Officer
$127,678
@ $106.31 · 2025-02-14
BRENNAN DANIEL J
Chief Financial Officer
$1.59M
@ $105.07 · 2025-02-12
SORENSON JOHN BRADLEY
Officer
$671,249
@ $105.06 · 2025-02-12
MIRVISS JEFFREY B
Officer
$1.37M
@ $105.06 · 2025-02-12
LUDWIG EDWARD J.
Director
$1.27M
@ $105.48 · 2025-02-11
SORENSON JOHN BRADLEY
Officer
$685,244
@ $104.97 · 2025-02-07
BUTCHER ARTHUR C
Officer
$1.76M
@ $101.80 · 2025-02-03
BRENNAN DANIEL J
Chief Financial Officer
$870,636
@ $89.86 · 2025-01-03
SORENSON JOHN BRADLEY
Officer
$581,241
@ $89.96 · 2025-01-03
MIRVISS JEFFREY B
Officer
$642,658
@ $89.86 · 2025-01-03
FITZGERALD JOSEPH MICHAEL
Officer
$1,799
@ $89.95 · 2024-12-10
CARRUTHERS WENDY
Officer
$633,917
@ $90.78 · 2024-12-02
WOODWORTH EMILY
Officer
$121,105
@ $90.65 · 2024-11-27
BUTCHER ARTHUR C
Officer
$1.25M
@ $89.27 · 2024-11-25
LUDWIG EDWARD J.
Director
$446,902
@ $91.63 · 2024-11-21
SORENSON JOHN BRADLEY
Officer
$2.68M
@ $87.66 · 2024-11-08
MAHONEY MICHAEL F
Chief Executive Officer
$13.79M
@ $84.75 · 2024-11-05
CARRUTHERS WENDY
Officer
$588,876
@ $84.33 · 2024-11-01
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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BSX
FearGreed
😨Fear(33/100)

"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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BSX
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 (33)
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 BSX Full AnalysisView PFE Full Analysis