VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Melrose Industries PLC vs TransDigm Group Incorporated

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

Melrose Industries PLC

MRO · London Stock Exchange

Market cap (USD)$10B
SectorIndustrials
CountryGB
Data as of2025-12-28
Moat score
77/ 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 Melrose Industries PLC's moat claims, evidence, and risks.

View MRO analysis

TransDigm Group Incorporated

TDG · New York Stock Exchange

Market cap (USD)$74.1B
SectorIndustrials
CountryUS
Data as of2025-12-31
Moat score
84/ 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 TransDigm Group Incorporated's moat claims, evidence, and risks.

View TDG analysis

Comparison highlights

  • Moat score gap: TransDigm Group Incorporated leads (84 / 100 vs 77 / 100 for Melrose Industries PLC).
  • Segment focus: Melrose Industries PLC has 2 segments (57.9% in Structures); TransDigm Group Incorporated has 3 segments (51.6% in Power & Control).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Strong.
  • Moat breadth: Melrose Industries PLC has 5 moat types across 2 domains; TransDigm Group Incorporated has 5 across 3.

Primary market context

Melrose Industries PLC

Structures

Market

Aerostructures and aircraft electrical wiring systems (EWIS)

Geography

Global

Customer

Airframe OEMs; defence primes

Role

Tier-1 aerospace supplier

Revenue share

57.9%

TransDigm Group Incorporated

Power & Control

Market

Highly engineered aerospace power & control components (OEM and aftermarket)

Geography

Global

Customer

Commercial airlines, aircraft OEMs, defense OEMs, governments, aerospace distributors

Role

Tier 2/3 component OEM, aftermarket spares, repair/overhaul

Revenue share

51.6%

Side-by-side metrics

Melrose Industries PLC
TransDigm Group Incorporated
Ticker / Exchange
MRO - London Stock Exchange
TDG - New York Stock Exchange
Market cap (USD)
$10B
$74.1B
Sector
Industrials
Industrials
HQ country
GB
US
Primary segment
Structures
Power & Control
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
77 / 100
84 / 100
Moat domains
Demand, Supply
Demand, Legal, Supply
Last update
2025-12-28
2025-12-31

Moat coverage

Shared moat types

Design In Qualification

Melrose Industries PLC strengths

Long Term ContractsCapex Knowhow ScaleService Field NetworkCapacity Moat

TransDigm Group Incorporated strengths

Installed Base ConsumablesRegulated Standards PipeOperational ExcellenceSmall legacy non-aviation portfolio

Segment mix

Melrose Industries PLC segments

Full profile >

Engines

Oligopoly

42.1%

Structures

Oligopoly

57.9%

TransDigm Group Incorporated segments

Full profile >

Power & Control

Competitive

51.6%

Airframe

Competitive

46.6%

Non-aviation

Competitive

1.8%

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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.