VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Judges Scientific plc vs Transurban Group

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

Transurban Group

TCL · Australian Securities Exchange

Market cap (USD)$42.6B
Gross margin (TTM)43.4%
Operating margin (TTM)39.4%
Net margin (TTM)5.8%
SectorIndustrials
IndustryIndustrial - Infrastructure Operations
CountryAU
Data as of2026-01-04
Moat score
91/ 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 Transurban Group's moat claims, evidence, and risks.

View TCL analysis

Comparison highlights

  • Moat score gap: Transurban Group leads (91 / 100 vs 63 / 100 for Judges Scientific plc).
  • Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); Transurban Group has 4 segments (49.5% in Sydney toll roads).
  • Primary market structure: Competitive vs Quasi-Monopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Judges Scientific plc has 3 moat types across 1 domains; Transurban Group has 3 across 3.

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%

Transurban Group

Sydney toll roads

Market

Urban toll-road concessions (Sydney)

Geography

Sydney, New South Wales, Australia

Customer

Motorists and commercial fleet operators

Role

Concessionaire / operator and developer

Revenue share

49.5%

Side-by-side metrics

Judges Scientific plc
Transurban Group
Ticker / Exchange
JDG - London Stock Exchange - AIM
TCL - Australian Securities Exchange
Market cap (USD)
n/a
$42.6B
Gross margin (TTM)
n/a
43.4%
Operating margin (TTM)
n/a
39.4%
Net margin (TTM)
n/a
5.8%
Sector
Technology
Industrials
Industry
n/a
Industrial - Infrastructure Operations
HQ country
GB
AU
Primary segment
Vacuum
Sydney toll roads
Market structure
Competitive
Quasi-Monopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
63 / 100
91 / 100
Moat domains
Demand
Legal, Financial, Demand
Last update
2026-01-06
2026-01-04

Moat coverage

Shared moat types

No overlap yet.

Judges Scientific plc strengths

Brand TrustSwitching Costs GeneralBuy-and-build acquisition engine

Transurban Group strengths

Concession LicenseBenchmark Pricing PowerDynamic congestion pricing

Segment mix

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

Transurban Group segments

Full profile >

Sydney toll roads

Quasi-Monopoly

49.5%

Melbourne toll roads

Quasi-Monopoly

26.5%

Brisbane toll roads

Quasi-Monopoly

16%

North America managed lanes and concessions

Quasi-Monopoly

8.1%

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.

View expansion-stage stocks

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.