VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Costco Wholesale Corporation vs Walmart Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Costco 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 analysisWalmart Inc.
WMT · 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 Walmart Inc.'s moat claims, evidence, and risks.
View WMT analysisComparison highlights
- Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 77 / 100 for Walmart Inc.).
- Segment focus: Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
- Primary market structure: Oligopoly vs Competitive. Pricing power: Weak vs Weak.
- Moat breadth: Costco Wholesale Corporation has 6 moat types across 3 domains; Walmart Inc. has 6 across 4.
Primary market context
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%
Walmart Inc.
Walmart U.S.
U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)
United States
Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)
Retailer / marketplace operator / last-mile fulfillment network
68.3%
Side-by-side metrics
Moat coverage
Shared moat types
Costco Wholesale Corporation strengths
Walmart Inc. strengths
Segment mix
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
Walmart Inc. segments
Full profile >Walmart U.S.
Competitive
Walmart International
Competitive
Sam's Club U.S.
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.