★ WIDE MOAT STOCKS COMPARISON ★
VOL. XCIV, NO. 247
Stock Comparison
Amazon.com, Inc. vs Costco Wholesale Corporation
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Amazon.com, Inc.
AMZN · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Amazon.com, Inc.'s moat claims, evidence, and risks.
View AMZN analysisCostco Wholesale Corporation
COST · The 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: Amazon.com, Inc. leads (95 / 100 vs 86 / 100 for Costco Wholesale Corporation).
- Segment focus: Amazon.com, Inc. has 4 segments (68.2% in Amazon Stores (Retail, Marketplace and Prime)); Costco Wholesale Corporation has 2 segments (98% in Warehouse club retail).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Weak.
- Moat breadth: Amazon.com, Inc. has 6 moat types across 3 domains; Costco Wholesale Corporation has 6 across 3.
Primary market context
Amazon.com, Inc.
Amazon Stores (Retail, Marketplace and Prime)
Online and physical retail, third-party marketplace, fulfillment and membership commerce
Global
Consumers and third-party merchants
Marketplace operator, retailer, membership provider and fulfillment network
68.2%
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%
Side-by-side metrics
Moat coverage
Shared moat types
No overlap yet.
Amazon.com, Inc. strengths
Costco Wholesale Corporation strengths
Segment mix
Amazon.com, Inc. segments
Full profile >Amazon Web Services (AWS)
Oligopoly
Amazon Stores (Retail, Marketplace and Prime)
Oligopoly
Advertising Services (Amazon Ads and Retail Media)
Oligopoly
Other Services and Adjacencies
Competitive
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
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View expansion-stage stocksCuration & 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.