VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Amazon.com, Inc. vs VINCI SA

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

Amazon.com, Inc.

AMZN · NASDAQ

Market cap (USD)$2.5T
Gross margin (TTM)50.1%
Operating margin (TTM)11%
Net margin (TTM)11.1%
SectorConsumer
IndustrySpecialty Retail
CountryUS
Data as of2025-12-29
Moat score
87/ 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 Amazon.com, Inc.'s moat claims, evidence, and risks.

View AMZN 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: Amazon.com, Inc. leads (87 / 100 vs 57 / 100 for VINCI SA).
  • Segment focus: Amazon.com, Inc. has 4 segments (73.5% in Amazon Stores (Retail, Marketplace, Prime Subscriptions)); VINCI SA has 7 segments (44.4% in VINCI Construction).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: Amazon.com, Inc. has 10 moat types across 4 domains; VINCI SA has 7 across 2.

Primary market context

Amazon.com, Inc.

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Market

US retail ecommerce marketplace and online retail (integrated fulfillment + membership shipping)

Geography

United States

Customer

Consumers and third-party merchants

Role

Marketplace operator, retailer, and fulfillment provider

Revenue share

73.5%

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

Amazon.com, Inc.
VINCI SA
Ticker / Exchange
AMZN - NASDAQ
DG - Euronext Paris
Market cap (USD)
$2.5T
$67.5B
Gross margin (TTM)
50.1%
16%
Operating margin (TTM)
11%
12.1%
Net margin (TTM)
11.1%
6.5%
Sector
Consumer
Industrials
Industry
Specialty Retail
Engineering & Construction
HQ country
US
FR
Primary segment
Amazon Stores (Retail, Marketplace, Prime Subscriptions)
VINCI Construction
Market structure
Oligopoly
Competitive
Market share
39%-42% (estimated)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
87 / 100
57 / 100
Moat domains
Supply, Demand, Network, Financial
Legal, Supply
Last update
2025-12-29
2026-01-03

Moat coverage

Shared moat types

Capex Knowhow Scale

Amazon.com, Inc. strengths

Scope EconomiesLong Term ContractsTwo Sided NetworkPhysical Network DensitySuite BundlingHabit DefaultNegative Working CapitalDistribution ControlData Network Effects

VINCI SA strengths

Concession LicensePermits Rights Of WayOperational ExcellenceService Field NetworkCapacity MoatCompliance Advantage

Segment mix

Amazon.com, Inc. segments

Full profile >

Amazon Web Services (AWS)

Oligopoly

16.9%

Amazon Stores (Retail, Marketplace, Prime Subscriptions)

Oligopoly

73.5%

Advertising Services (Amazon Ads / Retail Media)

Oligopoly

8.8%

Other (healthcare, content licensing/distribution, shipping services, co-branded credit card agreements, etc.)

Competitive

0.9%

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?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

View the moat stocks list

Looking for expansion-stage stocks?

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

View expansion-stage stocks

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.