VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

ASML Holding N.V. vs Judges Scientific plc

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

ASML Holding N.V.

ASML · Euronext Amsterdam

Market cap (USD)$407.9B
Gross margin (TTM)52.7%
Operating margin (TTM)34.9%
Net margin (TTM)29.4%
SectorTechnology
IndustrySemiconductors
CountryNL
Data as of2025-12-21
Moat score
76/ 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 ASML Holding N.V.'s moat claims, evidence, and risks.

View ASML analysis

Judges Scientific plc

JDG · London Stock Exchange - AIM

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorTechnology
Industry
CountryGB
Data as of2026-01-06
Moat score
63/ 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 Judges Scientific plc's moat claims, evidence, and risks.

View JDG analysis

Comparison highlights

  • Moat score gap: ASML Holding N.V. leads (76 / 100 vs 63 / 100 for Judges Scientific plc).
  • Segment focus: ASML Holding N.V. has 3 segments (23% in Installed Base Management (service, upgrades, field options)); Judges Scientific plc has 2 segments (51.7% in Vacuum).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: Strong vs Moderate.
  • Moat breadth: ASML Holding N.V. has 6 moat types across 2 domains; Judges Scientific plc has 3 across 1.

Primary market context

ASML Holding N.V.

Installed Base Management (service, upgrades, field options)

Market

Service, upgrades and field options for installed ASML lithography tools

Geography

Global

Customer

Owners/operators of ASML lithography systems

Role

Aftermarket service provider

Revenue share

23%

Judges Scientific plc

Vacuum

Market

Vacuum and surface-science related instrumentation (e.g., UHV/vacuum components and systems, thin-film/surface engineering adjacent tools)

Geography

Global

Customer

Research labs and high-tech manufacturing

Role

Equipment manufacturer

Revenue share

51.7%

Side-by-side metrics

ASML Holding N.V.
Judges Scientific plc
Ticker / Exchange
ASML - Euronext Amsterdam
JDG - London Stock Exchange - AIM
Market cap (USD)
$407.9B
n/a
Gross margin (TTM)
52.7%
n/a
Operating margin (TTM)
34.9%
n/a
Net margin (TTM)
29.4%
n/a
Sector
Technology
Technology
Industry
Semiconductors
n/a
HQ country
NL
GB
Primary segment
Installed Base Management (service, upgrades, field options)
Vacuum
Market structure
Quasi-Monopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
76 / 100
63 / 100
Moat domains
Supply, Demand
Demand
Last update
2025-12-21
2026-01-06

Moat coverage

Shared moat types

Brand TrustSwitching Costs General

ASML Holding N.V. strengths

Supply Chain ControlCapex Knowhow ScaleService Field NetworkInstalled Base Consumables

Judges Scientific plc strengths

Buy-and-build acquisition engine

Segment mix

ASML Holding N.V. segments

Full profile >

EUV lithography systems (incl. High-NA)

Monopoly

n/a

DUV lithography systems

Oligopoly

n/a

Installed Base Management (service, upgrades, field options)

Quasi-Monopoly

23%

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

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.