VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Judges Scientific plc vs Northrop Grumman 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

Northrop Grumman Corporation

NOC · New York Stock Exchange

Market cap (USD)$87.2B
Gross margin (TTM)19.4%
Operating margin (TTM)10.6%
Net margin (TTM)9.8%
SectorIndustrials
IndustryAerospace & Defense
CountryUS
Data as of2025-12-26
Moat score
72/ 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 Northrop Grumman Corporation's moat claims, evidence, and risks.

View NOC analysis

Comparison highlights

  • Moat score gap: Northrop Grumman Corporation leads (72 / 100 vs 63 / 100 for Judges Scientific plc).
  • Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); Northrop Grumman Corporation has 4 segments (28.7% in Aeronautics Systems).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Judges Scientific plc has 3 moat types across 1 domains; Northrop Grumman Corporation has 6 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%

Northrop Grumman Corporation

Aeronautics Systems

Market

Military aircraft systems (manned & unmanned) plus sustainment/modernization

Geography

Global (primarily United States and allies)

Customer

U.S. government and allied governments

Role

Prime contractor and major subsystem supplier

Revenue share

28.7%

Side-by-side metrics

Judges Scientific plc
Northrop Grumman Corporation
Ticker / Exchange
JDG - London Stock Exchange - AIM
NOC - New York Stock Exchange
Market cap (USD)
n/a
$87.2B
Gross margin (TTM)
n/a
19.4%
Operating margin (TTM)
n/a
10.6%
Net margin (TTM)
n/a
9.8%
Sector
Technology
Industrials
Industry
n/a
Aerospace & Defense
HQ country
GB
US
Primary segment
Vacuum
Aeronautics Systems
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
63 / 100
72 / 100
Moat domains
Demand
Legal, Demand, Supply
Last update
2026-01-06
2025-12-26

Moat coverage

Shared moat types

Switching Costs General

Judges Scientific plc strengths

Brand TrustBuy-and-build acquisition engine

Northrop Grumman Corporation strengths

Government Contracting RelationshipsDesign In QualificationCompliance AdvantageCapacity MoatCapex Knowhow Scale

Segment mix

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

Northrop Grumman Corporation segments

Full profile >

Aeronautics Systems

Oligopoly

28.7%

Defense Systems

Oligopoly

18.8%

Mission Systems

Oligopoly

24.9%

Space Systems

Oligopoly

27.6%

Want the full wide moat stocks list?

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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.