VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

BAE Systems plc vs Boston Scientific Corporation

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

BAE Systems plc

BA. · London Stock Exchange

Market cap (USD)$55.2B
Gross margin (TTM)8.6%
Operating margin (TTM)9.3%
Net margin (TTM)7.4%
SectorIndustrials
IndustryAerospace & Defense
CountryGB
Data as of2025-12-28
Moat score
75/ 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 BAE Systems plc's moat claims, evidence, and risks.

View BA. 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: BAE Systems plc leads (75 / 100 vs 65 / 100 for Boston Scientific Corporation).
  • Segment focus: BAE Systems plc has 5 segments (26.6% in Electronic Systems); Boston Scientific Corporation has 5 segments (49.8% in Cardiology).
  • Moat breadth: BAE Systems plc has 8 moat types across 3 domains; Boston Scientific Corporation has 6 across 3.

Primary market context

BAE Systems plc

Electronic Systems

Market

Defence electronics (electronic warfare, avionics, C4ISR, space payloads and mission systems)

Geography

Primarily US and UK; global programmes

Customer

Government defence and intelligence agencies; prime contractors

Role

Subsystem OEM and prime contractor for electronics/mission systems

Revenue share

26.6%

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

BAE Systems plc
Boston Scientific Corporation
Ticker / Exchange
BA. - London Stock Exchange
BSX - New York Stock Exchange
Market cap (USD)
$55.2B
$141.5B
Gross margin (TTM)
8.6%
65.1%
Operating margin (TTM)
9.3%
17.3%
Net margin (TTM)
7.4%
14.4%
Sector
Industrials
Healthcare
Industry
Aerospace & Defense
Medical - Devices
HQ country
GB
US
Primary segment
Electronic Systems
Cardiology
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
75 / 100
65 / 100
Moat domains
Legal, Demand, Supply
Demand, Legal, Supply
Last update
2025-12-28
2026-01-04

Moat coverage

Shared moat types

No overlap yet.

BAE Systems plc strengths

Government Contracting RelationshipsDesign In QualificationCompliance AdvantageService Field NetworkLong Term ContractsCapex Knowhow ScaleCapacity MoatSwitching Costs General

Boston Scientific Corporation strengths

Installed Base ConsumablesProcurement InertiaTraining Org Change CostsRegulated Standards PipeReputation ReviewsDistribution Control

Segment mix

BAE Systems plc segments

Full profile >

Electronic Systems

Oligopoly

26.6%

Platforms & Services

Oligopoly

16.3%

Air

Oligopoly

26%

Maritime

Oligopoly

22.5%

Cyber & Intelligence

Competitive

8.6%

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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Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

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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.