VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Judges Scientific plc vs Moody's 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

Moody's Corporation

MCO · New York Stock Exchange

Market cap (USD)$94.7B
Gross margin (TTM)67.5%
Operating margin (TTM)43.5%
Net margin (TTM)29.9%
SectorFinancials
IndustryFinancial - Data & Stock Exchanges
CountryUS
Data as of2025-12-21
Moat score
79/ 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 Moody's Corporation's moat claims, evidence, and risks.

View MCO analysis

Comparison highlights

  • Moat score gap: Moody's Corporation leads (79 / 100 vs 63 / 100 for Judges Scientific plc).
  • Segment focus: Judges Scientific plc has 2 segments (51.7% in Vacuum); Moody's Corporation has 2 segments (53.5% in Moody's Investors Service (Credit Ratings)).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Judges Scientific plc has 3 moat types across 1 domains; Moody's Corporation has 5 across 4.

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%

Moody's Corporation

Moody's Investors Service (Credit Ratings)

Market

Credit ratings and ratings-related research

Geography

Global

Customer

Issuers, investors, regulators

Role

Credit rating agency / research provider

Revenue share

53.5%

Side-by-side metrics

Judges Scientific plc
Moody's Corporation
Ticker / Exchange
JDG - London Stock Exchange - AIM
MCO - New York Stock Exchange
Market cap (USD)
n/a
$94.7B
Gross margin (TTM)
n/a
67.5%
Operating margin (TTM)
n/a
43.5%
Net margin (TTM)
n/a
29.9%
Sector
Technology
Financials
Industry
n/a
Financial - Data & Stock Exchanges
HQ country
GB
US
Primary segment
Vacuum
Moody's Investors Service (Credit Ratings)
Market structure
Competitive
Oligopoly
Market share
n/a
29%-32% (estimated)
HHI estimate
n/a
3,568
Pricing power
Moderate
Strong
Moat score
63 / 100
79 / 100
Moat domains
Demand
Legal, Network, Demand, Supply
Last update
2026-01-06
2025-12-21

Moat coverage

Shared moat types

Brand Trust

Judges Scientific plc strengths

Switching Costs GeneralBuy-and-build acquisition engine

Moody's Corporation strengths

Regulated Standards PipeDe Facto StandardData Workflow LockinScope Economies

Segment mix

Judges Scientific plc segments

Full profile >

Materials Sciences

Competitive

48.4%

Vacuum

Competitive

51.7%

Moody's Corporation segments

Full profile >

Moody's Investors Service (Credit Ratings)

Oligopoly

53.5%

Moody's Analytics (Risk & Data/Software)

Competitive

46.5%

Want the full wide moat stocks list?

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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.