VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Wednesday, January 7, 2026

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Stock Comparison

VINCI SA vs Judges Scientific plc

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

VINCI SA

DG · Euronext Paris

Market cap (USD)$67.5B

Gross margin (TTM)16%

Operating margin (TTM)12.1%

Net margin (TTM)6.5%

SectorIndustrials

IndustryEngineering & Construction

CountryFR

Data as of2026-01-03

Moat score

57/ 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 VINCI SA's moat claims, evidence, and risks.

View DG 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: Judges Scientific plc leads (63 / 100 vs 57 / 100 for VINCI SA).
Segment focus: VINCI SA has 7 segments (44.4% in VINCI Construction); Judges Scientific plc has 2 segments (51.7% in Vacuum).
Primary market structure: Competitive vs Competitive. Pricing power: Weak vs Moderate.
Moat breadth: VINCI SA has 7 moat types across 2 domains; Judges Scientific plc has 3 across 1.

Primary market context

VINCI SA

VINCI Construction

Market

Construction and civil engineering contracting (buildings, infrastructure and specialty networks)

Geography

Global

Customer

Public-sector project owners and private developers/industrial clients

Role

General contractor / civil engineering contractor

Revenue share

44.4%

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

VINCI SA

Judges Scientific plc

Ticker / Exchange

DG - Euronext Paris

JDG - London Stock Exchange - AIM

Market cap (USD)

$67.5B

n/a

Gross margin (TTM)

16%

n/a

Operating margin (TTM)

12.1%

n/a

Net margin (TTM)

6.5%

n/a

Sector

Industrials

Technology

Industry

Engineering & Construction

n/a

HQ country

Primary segment

VINCI Construction

Vacuum

Market structure

Competitive

Market share

n/a

HHI estimate

n/a

Pricing power

Weak

Moderate

Moat score

57 / 100

63 / 100

Moat domains

Legal, Supply

Demand

Last update

2026-01-03

2026-01-06

Moat coverage

Shared moat types

No overlap yet.

VINCI SA strengths

Concession LicensePermits Rights Of WayOperational ExcellenceService Field NetworkCapex Knowhow ScaleCapacity MoatCompliance Advantage

Judges Scientific plc strengths

Brand TrustSwitching Costs GeneralBuy-and-build acquisition engine

Segment mix

VINCI SA segments

Full profile >

VINCI Autoroutes

Monopoly

9.2%

VINCI Airports

Oligopoly

6.3%

Other concessions (incl. VINCI Highways and PPP assets)

Competitive

0.8%

VINCI Energies

Competitive

28.4%

Cobra IS

Competitive

9.9%

VINCI Construction

Competitive

44.4%

VINCI Immobilier

Competitive

1.6%

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

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.