VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Melrose Industries PLC vs O'Reilly Automotive, Inc.

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

O'Reilly Automotive, Inc.

ORLY · Nasdaq Global Select Market

Market cap (USD)
SectorConsumer
CountryUS
Data as of2025-12-31
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 O'Reilly Automotive, Inc.'s moat claims, evidence, and risks.

View ORLY analysis

Comparison highlights

  • Moat score gap: Melrose Industries PLC leads (77 / 100 vs 63 / 100 for O'Reilly Automotive, Inc.).
  • Segment focus: Melrose Industries PLC has 2 segments (57.9% in Structures); O'Reilly Automotive, Inc. has 2 segments (52% in DIY Aftermarket Retail).
  • Moat breadth: Melrose Industries PLC has 5 moat types across 2 domains; O'Reilly Automotive, Inc. has 7 across 2.

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%

O'Reilly Automotive, Inc.

DIY Aftermarket Retail

Market

Specialty automotive aftermarket parts retail (DIY channel)

Geography

United States, Puerto Rico, Mexico, Canada

Customer

Consumers (do-it-yourself vehicle owners)

Role

Specialty retailer

Revenue share

52%

Side-by-side metrics

Melrose Industries PLC
O'Reilly Automotive, Inc.
Ticker / Exchange
MRO - London Stock Exchange
ORLY - Nasdaq Global Select Market
Market cap (USD)
$10B
n/a
Sector
Industrials
Consumer
HQ country
GB
US
Primary segment
Structures
DIY Aftermarket Retail
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
63 / 100
Moat domains
Demand, Supply
Supply, Demand
Last update
2025-12-28
2025-12-31

Moat coverage

Shared moat types

Service Field Network

Melrose Industries PLC strengths

Long Term ContractsDesign In QualificationCapex Knowhow ScaleCapacity Moat

O'Reilly Automotive, Inc. strengths

Supply Chain ControlPhysical Network DensityBrand TrustHabit DefaultScope EconomiesProcurement Inertia

Segment mix

Melrose Industries PLC segments

Full profile >

Engines

Oligopoly

42.1%

Structures

Oligopoly

57.9%

O'Reilly Automotive, Inc. segments

Full profile >

DIY Aftermarket Retail

Oligopoly

52%

Professional (B2B) Aftermarket Distribution

Competitive

48%

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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.