VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Monday, December 29, 2025

Stock Comparison

ASM International N.V. vs GSK plc

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

ASM International N.V.

ASM · Euronext Amsterdam

Market cap (USD)
SectorTechnology
CountryNL
Data as of2025-12-29
Moat score
74/ 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 ASM International N.V.'s moat claims, evidence, and risks.

View ASM analysis

GSK plc

GSK · London Stock Exchange

Market cap (USD)$98.8B
SectorHealthcare
CountryGB
Data as of2025-12-28
Moat score
62/ 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 GSK plc's moat claims, evidence, and risks.

View GSK analysis

Comparison highlights

  • Moat score gap: ASM International N.V. leads (74 / 100 vs 62 / 100 for GSK plc).
  • Segment focus: ASM International N.V. has 3 segments; GSK plc has 3 segments (37.6% in Specialty Medicines).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: n/a vs Strong.
  • Moat breadth: ASM International N.V. has 5 moat types across 3 domains; GSK plc has 4 across 3.

Primary market context

ASM International N.V.

ALD equipment

Market

Single-wafer atomic layer deposition (ALD) equipment for semiconductor manufacturing

Geography

Global

Customer

Semiconductor manufacturers (logic/foundry, memory)

Role

Wafer fab equipment supplier

GSK plc

Specialty Medicines

Market

Branded specialty pharmaceuticals (HIV, oncology, immunology/respiratory)

Geography

Global

Customer

Hospitals, specialist physicians, payers

Role

Innovator & branded manufacturer

Revenue share

37.6%

Side-by-side metrics

ASM International N.V.
GSK plc
Ticker / Exchange
ASM - Euronext Amsterdam
GSK - London Stock Exchange
Market cap (USD)
n/a
$98.8B
Sector
Technology
Healthcare
HQ country
NL
GB
Primary segment
ALD equipment
Specialty Medicines
Market structure
Quasi-Monopoly
Oligopoly
Market share
55%-60% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
n/a
Strong
Moat score
74 / 100
62 / 100
Moat domains
Supply, Demand, Legal
Supply, Legal, Demand
Last update
2025-12-29
2025-12-28

Moat coverage

Shared moat types

IP Choke Point

ASM International N.V. strengths

Learning Curve YieldDesign In QualificationInstalled Base ConsumablesService Field Network

GSK plc strengths

Capex Knowhow ScaleCompliance AdvantageSwitching Costs General

Segment mix

ASM International N.V. segments

Full profile >

ALD equipment

Quasi-Monopoly

n/a

Silicon epitaxy equipment

Oligopoly

n/a

Spares and services

Quasi-Monopoly

n/a

GSK plc segments

Full profile >

Vaccines

Oligopoly

29.1%

Specialty Medicines

Oligopoly

37.6%

General Medicines

Competitive

33.2%

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.