VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Atlas Copco AB (publ) vs O'Reilly Automotive, Inc.

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

Atlas Copco AB (publ)

ATCO-A · Nasdaq Stockholm

Market cap (USD)$839.9B
Gross margin (TTM)42.7%
Operating margin (TTM)21%
Net margin (TTM)16.1%
SectorIndustrials
IndustryIndustrial - Machinery
CountrySE
Data as of2026-01-05
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 Atlas Copco AB (publ)'s moat claims, evidence, and risks.

View ATCO-A analysis

O'Reilly Automotive, Inc.

ORLY · Nasdaq Global Select Market

Market cap (USD)$76.5B
Gross margin (TTM)51.5%
Operating margin (TTM)19.3%
Net margin (TTM)14.2%
SectorConsumer
IndustryAuto - Parts
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: both at 63 / 100.
  • Segment focus: Atlas Copco AB (publ) has 4 segments (43.8% in Compressor Technique); O'Reilly Automotive, Inc. has 2 segments (52% in DIY Aftermarket Retail).
  • Moat breadth: Atlas Copco AB (publ) has 6 moat types across 2 domains; O'Reilly Automotive, Inc. has 7 across 2.

Primary market context

Atlas Copco AB (publ)

Compressor Technique

Market

Industrial compressors, air/gas systems (including air treatment) and related aftermarket service

Geography

Global

Customer

Industrial and process customers; distributors; service-contract customers

Role

Equipment OEM + aftermarket service provider

Revenue share

43.8%

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

Atlas Copco AB (publ)
O'Reilly Automotive, Inc.
Ticker / Exchange
ATCO-A - Nasdaq Stockholm
ORLY - Nasdaq Global Select Market
Market cap (USD)
$839.9B
$76.5B
Gross margin (TTM)
42.7%
51.5%
Operating margin (TTM)
21%
19.3%
Net margin (TTM)
16.1%
14.2%
Sector
Industrials
Consumer
Industry
Industrial - Machinery
Auto - Parts
HQ country
SE
US
Primary segment
Compressor Technique
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
63 / 100
63 / 100
Moat domains
Supply, Demand
Supply, Demand
Last update
2026-01-05
2025-12-31

Moat coverage

Shared moat types

Service Field Network

Atlas Copco AB (publ) strengths

Data Workflow LockinDesign In QualificationLearning Curve YieldInstalled Base ConsumablesCapacity Moat

O'Reilly Automotive, Inc. strengths

Supply Chain ControlPhysical Network DensityBrand TrustHabit DefaultScope EconomiesProcurement Inertia

Segment mix

Atlas Copco AB (publ) segments

Full profile >

Compressor Technique

Oligopoly

43.8%

Vacuum Technique

Oligopoly

22.9%

Industrial Technique

Oligopoly

16.7%

Power Technique

Competitive

16.7%

O'Reilly Automotive, Inc. segments

Full profile >

DIY Aftermarket Retail

Oligopoly

52%

Professional (B2B) Aftermarket Distribution

Competitive

48%

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.