VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Monday, December 29, 2025
Stock Comparison
Costco Wholesale Corporation vs MercadoLibre, 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 analysisMercadoLibre, Inc.
MELI · 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 MercadoLibre, Inc.'s moat claims, evidence, and risks.
View MELI analysisComparison highlights
- Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 73 / 100 for MercadoLibre, Inc.).
- Segment focus: Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail); MercadoLibre, Inc. has 2 segments (58.5% in Commerce (Marketplace, logistics, ads, classifieds)).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Weak vs Moderate.
- Moat breadth: Costco Wholesale Corporation has 6 moat types across 3 domains; MercadoLibre, 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%
MercadoLibre, Inc.
Commerce (Marketplace, logistics, ads, classifieds)
Latin American e-commerce marketplace and commerce services (online marketplace, 1P retail, fulfillment/logistics, advertising)
Latin America (Brazil, Mexico, Argentina and other countries)
Consumers (buyers) and merchants/brands (sellers), including MSMEs
Marketplace operator + retailer + logistics orchestrator
58.5%
Side-by-side metrics
Moat coverage
Shared moat types
No overlap yet.
Costco Wholesale Corporation strengths
MercadoLibre, Inc. strengths
Segment mix
Costco Wholesale Corporation segments
Full profile >Warehouse club retail
Oligopoly
Membership fees (subscription)
Oligopoly
MercadoLibre, Inc. segments
Full profile >Commerce (Marketplace, logistics, ads, classifieds)
Oligopoly
Fintech (Mercado Pago & credit)
Competitive
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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.