VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

AutoZone, Inc. vs TransDigm Group Incorporated

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

AutoZone, Inc.

AZO · New York Stock Exchange

Market cap (USD)$56.3B
SectorConsumer
CountryUS
Data as of2025-12-31
Moat score
59/ 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 AutoZone, Inc.'s moat claims, evidence, and risks.

View AZO 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 59 / 100 for AutoZone, Inc.).
  • Segment focus: AutoZone, Inc. has 2 segments (88% in U.S. Auto Parts Retail & Commercial Distribution); TransDigm Group Incorporated has 3 segments (51.6% in Power & Control).
  • Primary market structure: Competitive vs Competitive. Pricing power: Moderate vs Strong.
  • Moat breadth: AutoZone, Inc. has 6 moat types across 3 domains; TransDigm Group Incorporated has 5 across 3.

Primary market context

AutoZone, Inc.

U.S. Auto Parts Retail & Commercial Distribution

Market

U.S. automotive aftermarket replacement parts & accessories retail and commercial distribution

Geography

United States

Customer

DIY consumers; professional repair shops (DIFM)

Role

Retailer and distributor

Revenue share

88%

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

AutoZone, Inc.
TransDigm Group Incorporated
Ticker / Exchange
AZO - New York Stock Exchange
TDG - New York Stock Exchange
Market cap (USD)
$56.3B
$74.1B
Sector
Consumer
Industrials
HQ country
US
US
Primary segment
U.S. Auto Parts Retail & Commercial Distribution
Power & Control
Market structure
Competitive
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
59 / 100
84 / 100
Moat domains
Supply, Demand, Financial
Demand, Legal, Supply
Last update
2025-12-31
2025-12-31

Moat coverage

Shared moat types

Operational Excellence

AutoZone, Inc. strengths

Distribution ControlPhysical Network DensityService Field NetworkBrand TrustNegative Working Capital

TransDigm Group Incorporated strengths

Design In QualificationInstalled Base ConsumablesRegulated Standards PipeSmall legacy non-aviation portfolio

Segment mix

AutoZone, Inc. segments

Full profile >

U.S. Auto Parts Retail & Commercial Distribution

Competitive

88%

International Auto Parts Retail & Commercial Distribution (Mexico & Brazil)

Competitive

12%

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.