VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Judges Scientific plc vs Parker-Hannifin Corporation

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

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

Parker-Hannifin Corporation

PH · New York Stock Exchange

Market cap (USD)$115.9B
Gross margin (TTM)37.1%
Operating margin (TTM)20.8%
Net margin (TTM)18.2%
SectorIndustrials
IndustryIndustrial - Machinery
CountryUS
Data as of2025-12-31
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 Parker-Hannifin Corporation's moat claims, evidence, and risks.

View PH analysis

Comparison highlights

  • Moat score gap: Parker-Hannifin Corporation leads (71 / 100 vs 63 / 100 for Judges Scientific plc).
  • Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); Parker-Hannifin Corporation has 2 segments (68.8% in Diversified Industrial).
  • Moat breadth: Judges Scientific plc has 3 moat types across 1 domains; Parker-Hannifin Corporation has 5 across 2.

Primary market context

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%

Parker-Hannifin Corporation

Diversified Industrial

Market

Motion and control components & systems (industrial and mobile applications)

Geography

Global

Customer

OEMs and industrial distributors/aftermarket channels

Role

Component and system designer/manufacturer with aftermarket support

Revenue share

68.8%

Side-by-side metrics

Judges Scientific plc
Parker-Hannifin Corporation
Ticker / Exchange
JDG - London Stock Exchange - AIM
PH - New York Stock Exchange
Market cap (USD)
n/a
$115.9B
Gross margin (TTM)
n/a
37.1%
Operating margin (TTM)
n/a
20.8%
Net margin (TTM)
n/a
18.2%
Sector
Technology
Industrials
Industry
n/a
Industrial - Machinery
HQ country
GB
US
Primary segment
Vacuum
Diversified Industrial
Market structure
Competitive
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
63 / 100
71 / 100
Moat domains
Demand
Supply, Demand
Last update
2026-01-06
2025-12-31

Moat coverage

Shared moat types

No overlap yet.

Judges Scientific plc strengths

Brand TrustSwitching Costs GeneralBuy-and-build acquisition engine

Parker-Hannifin Corporation strengths

Distribution ControlDesign In QualificationScope EconomiesOperational ExcellenceInstalled Base Consumables

Segment mix

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

Parker-Hannifin Corporation segments

Full profile >

Diversified Industrial

Competitive

68.8%

Aerospace Systems

Oligopoly

31.2%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.