VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
AutoZone, Inc. vs Costco Wholesale Corporation
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
AutoZone, Inc.
AZO · New York Stock Exchange
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 analysisCostco Wholesale Corporation
COST · Nasdaq Global Select Market
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Costco Wholesale Corporation's moat claims, evidence, and risks.
View COST analysisComparison highlights
- Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 59 / 100 for AutoZone, Inc.).
- Segment focus: AutoZone, Inc. has 2 segments (88% in U.S. Auto Parts Retail & Commercial Distribution); Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Weak.
- Moat breadth: AutoZone, Inc. has 6 moat types across 3 domains; Costco Wholesale Corporation has 6 across 3.
Primary market context
AutoZone, Inc.
U.S. Auto Parts Retail & Commercial Distribution
U.S. automotive aftermarket replacement parts & accessories retail and commercial distribution
United States
DIY consumers; professional repair shops (DIFM)
Retailer and distributor
88%
Costco Wholesale Corporation
Warehouse club retail
Membership warehouse club retail (warehouse clubs, ancillary services, and e-commerce)
Global
Households and small businesses
Retailer (membership club)
98.1%
Side-by-side metrics
Moat coverage
Shared moat types
AutoZone, Inc. strengths
Costco Wholesale Corporation strengths
Segment mix
AutoZone, Inc. segments
Full profile >U.S. Auto Parts Retail & Commercial Distribution
Competitive
International Auto Parts Retail & Commercial Distribution (Mexico & Brazil)
Competitive
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
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View the moat stocks listCuration & 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.