VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

AstraZeneca PLC vs Boston Scientific Corporation

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

AstraZeneca PLC

AZN · London Stock Exchange

Market cap (USD)$211.1B
Gross margin (TTM)75.2%
Operating margin (TTM)22%
Net margin (TTM)16.3%
SectorHealthcare
IndustryDrug Manufacturers - General
CountryGB
Data as of2026-01-02
Moat score
71/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into AstraZeneca PLC's moat claims, evidence, and risks.

View AZN analysis

Boston Scientific Corporation

BSX · New York Stock Exchange

Market cap (USD)$141.5B
Gross margin (TTM)65.1%
Operating margin (TTM)17.3%
Net margin (TTM)14.4%
SectorHealthcare
IndustryMedical - Devices
CountryUS
Data as of2026-01-04
Moat score
65/ 100

Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.

Full stock profile

Dive deeper into Boston Scientific Corporation's moat claims, evidence, and risks.

View BSX analysis

Comparison highlights

  • Moat score gap: AstraZeneca PLC leads (71 / 100 vs 65 / 100 for Boston Scientific Corporation).
  • Segment focus: AstraZeneca PLC has 6 segments (41% in Oncology); Boston Scientific Corporation has 5 segments (49.8% in Cardiology).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: AstraZeneca PLC has 4 moat types across 3 domains; Boston Scientific Corporation has 6 across 3.

Primary market context

AstraZeneca PLC

Oncology

Market

Innovator oncology therapeutics (branded prescription medicines)

Geography

Global

Customer

Hospitals, oncology clinics, payers

Role

Innovator biopharmaceutical company

Revenue share

41%

Boston Scientific Corporation

Cardiology

Market

Cardiology devices (interventional cardiology, structural heart, electrophysiology, cardiac rhythm management and remote monitoring)

Geography

Global

Customer

Hospitals/cath labs/EP labs and specialty clinics (cardiologists, electrophysiologists)

Role

Medical device OEM / implantables + procedure devices + service-enabled monitoring

Revenue share

49.8%

Side-by-side metrics

AstraZeneca PLC
Boston Scientific Corporation
Ticker / Exchange
AZN - London Stock Exchange
BSX - New York Stock Exchange
Market cap (USD)
$211.1B
$141.5B
Gross margin (TTM)
75.2%
65.1%
Operating margin (TTM)
22%
17.3%
Net margin (TTM)
16.3%
14.4%
Sector
Healthcare
Healthcare
Industry
Drug Manufacturers - General
Medical - Devices
HQ country
GB
US
Primary segment
Oncology
Cardiology
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
71 / 100
65 / 100
Moat domains
Legal, Supply, Demand
Demand, Legal, Supply
Last update
2026-01-02
2026-01-04

Moat coverage

Shared moat types

Regulated Standards Pipe

AstraZeneca PLC strengths

IP Choke PointCapex Knowhow ScaleBrand Trust

Boston Scientific Corporation strengths

Installed Base ConsumablesProcurement InertiaTraining Org Change CostsReputation ReviewsDistribution Control

Segment mix

AstraZeneca PLC segments

Full profile >

Oncology

Oligopoly

41%

Cardiovascular, Renal and Metabolism (CVRM)

Competitive

23%

Respiratory & Immunology (R&I)

Oligopoly

15%

Vaccines & Immune Therapies (V&I)

Oligopoly

3%

Rare Disease

Oligopoly

16%

Other Medicines

Competitive

2%

Boston Scientific Corporation segments

Full profile >

Endoscopy

Oligopoly

16%

Urology

Competitive

13.1%

Neuromodulation

Oligopoly

6.6%

Cardiology

Oligopoly

49.8%

Peripheral Interventions

Competitive

14.4%

Want the full wide moat stocks list?

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Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.