VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

AutoZone, Inc. vs IDEX Corporation

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

IDEX Corporation

IEX · New York Stock Exchange

Market cap (USD)$13.4B
SectorIndustrials
CountryUS
Data as of2025-12-23
Moat score
58/ 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 IDEX Corporation's moat claims, evidence, and risks.

View IEX analysis

Comparison highlights

  • Moat score gap: AutoZone, Inc. leads (59 / 100 vs 58 / 100 for IDEX Corporation).
  • Segment focus: AutoZone, Inc. has 2 segments (88% in U.S. Auto Parts Retail & Commercial Distribution); IDEX Corporation has 3 segments (39.6% in Health & Science Technologies (HST)).
  • Moat breadth: AutoZone, Inc. has 6 moat types across 3 domains; IDEX Corporation has 7 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%

IDEX Corporation

Health & Science Technologies (HST)

Market

Precision fluidics, optics/photonics, microfluidics, sealing solutions, pneumatic components, and process technologies for life science/diagnostics, semiconductor, aerospace/defense, and industrial markets

Geography

Global

Customer

Life science & diagnostic instrument OEMs, semiconductor/industrial OEMs, specialty industrial customers

Role

Component/subsystem supplier and specialty equipment provider

Revenue share

39.6%

Side-by-side metrics

AutoZone, Inc.
IDEX Corporation
Ticker / Exchange
AZO - New York Stock Exchange
IEX - New York Stock Exchange
Market cap (USD)
$56.3B
$13.4B
Sector
Consumer
Industrials
HQ country
US
US
Primary segment
U.S. Auto Parts Retail & Commercial Distribution
Health & Science Technologies (HST)
Market structure
Competitive
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
59 / 100
58 / 100
Moat domains
Supply, Demand, Financial
Demand, Supply, Legal
Last update
2025-12-31
2025-12-23

Moat coverage

Shared moat types

Brand Trust

AutoZone, Inc. strengths

Distribution ControlPhysical Network DensityService Field NetworkOperational ExcellenceNegative Working Capital

IDEX Corporation strengths

Design In QualificationData Workflow LockinInstalled Base ConsumablesLearning Curve YieldIP Choke PointProcurement Inertia

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%

IDEX Corporation segments

Full profile >

Fluid & Metering Technologies (FMT)

Competitive

37.7%

Health & Science Technologies (HST)

Competitive

39.6%

Fire & Safety/Diversified Products (FSDP)

Competitive

22.7%

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.