VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, January 7, 2026

Stock Comparison

Costco Wholesale Corporation vs VINCI SA

Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.

Costco Wholesale Corporation

COST · Nasdaq Global Select Market

Market cap (USD)$388.7B
Gross margin (TTM)12.9%
Operating margin (TTM)3.8%
Net margin (TTM)3%
SectorConsumer
IndustryDiscount Stores
CountryUS
Data as of2025-12-21
Moat score
80/ 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 Costco Wholesale Corporation's moat claims, evidence, and risks.

View COST analysis

VINCI SA

DG · Euronext Paris

Market cap (USD)$67.5B
Gross margin (TTM)16%
Operating margin (TTM)12.1%
Net margin (TTM)6.5%
SectorIndustrials
IndustryEngineering & Construction
CountryFR
Data as of2026-01-03
Moat score
57/ 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 VINCI SA's moat claims, evidence, and risks.

View DG analysis

Comparison highlights

  • Moat score gap: Costco Wholesale Corporation leads (80 / 100 vs 57 / 100 for VINCI SA).
  • Segment focus: Costco Wholesale Corporation has 2 segments (98.1% in Warehouse club retail); VINCI SA has 7 segments (44.4% in VINCI Construction).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Weak vs Weak.
  • Moat breadth: Costco Wholesale Corporation has 6 moat types across 3 domains; VINCI SA has 7 across 2.

Primary market context

Costco Wholesale Corporation

Warehouse club retail

Market

Membership warehouse club retail (warehouse clubs, ancillary services, and e-commerce)

Geography

Global

Customer

Households and small businesses

Role

Retailer (membership club)

Revenue share

98.1%

VINCI SA

VINCI Construction

Market

Construction and civil engineering contracting (buildings, infrastructure and specialty networks)

Geography

Global

Customer

Public-sector project owners and private developers/industrial clients

Role

General contractor / civil engineering contractor

Revenue share

44.4%

Side-by-side metrics

Costco Wholesale Corporation
VINCI SA
Ticker / Exchange
COST - Nasdaq Global Select Market
DG - Euronext Paris
Market cap (USD)
$388.7B
$67.5B
Gross margin (TTM)
12.9%
16%
Operating margin (TTM)
3.8%
12.1%
Net margin (TTM)
3%
6.5%
Sector
Consumer
Industrials
Industry
Discount Stores
Engineering & Construction
HQ country
US
FR
Primary segment
Warehouse club retail
VINCI Construction
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Weak
Weak
Moat score
80 / 100
57 / 100
Moat domains
Supply, Financial, Demand
Legal, Supply
Last update
2025-12-21
2026-01-03

Moat coverage

Shared moat types

Operational Excellence

Costco Wholesale Corporation strengths

Scale Economies Unit CostNegative Working CapitalBrand TrustHabit DefaultFloat Prepayment

VINCI SA strengths

Concession LicensePermits Rights Of WayService Field NetworkCapex Knowhow ScaleCapacity MoatCompliance Advantage

Segment mix

Costco Wholesale Corporation segments

Full profile >

Warehouse club retail

Oligopoly

98.1%

Membership fees (subscription)

Oligopoly

1.9%

VINCI SA segments

Full profile >

VINCI Autoroutes

Monopoly

9.2%

VINCI Airports

Oligopoly

6.3%

Other concessions (incl. VINCI Highways and PPP assets)

Competitive

0.8%

VINCI Energies

Competitive

28.4%

Cobra IS

Competitive

9.9%

VINCI Construction

Competitive

44.4%

VINCI Immobilier

Competitive

1.6%

Want the full wide moat stocks list?

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Proven models entering the expansion stage with unit economics that work.

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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.