VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Mastercard Incorporated vs Walmart Inc.

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

Mastercard Incorporated

MA · New York Stock Exchange

Market cap (USD)$516.9B
SectorFinancials
CountryUS
Data as of2025-12-21
Moat score
77/ 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 Mastercard Incorporated's moat claims, evidence, and risks.

View MA analysis

Walmart Inc.

WMT · New York Stock Exchange

Market cap (USD)$894.3B
SectorConsumer
CountryUS
Data as of2025-12-30
Moat score
77/ 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 Walmart Inc.'s moat claims, evidence, and risks.

View WMT analysis

Comparison highlights

  • Moat score: both at 77 / 100.
  • Segment focus: Mastercard Incorporated has 2 segments (61.5% in Payment Network); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: Mastercard Incorporated has 6 moat types across 3 domains; Walmart Inc. has 6 across 4.

Primary market context

Mastercard Incorporated

Payment Network

Market

Four-party card payment network (switching, acceptance, and network-related services)

Geography

Global

Customer

Issuers, acquirers, merchants, account holders

Role

Network operator (authorization, clearing, settlement) and rules/standards steward

Revenue share

61.5%

Walmart Inc.

Walmart U.S.

Market

U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)

Geography

United States

Customer

Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)

Role

Retailer / marketplace operator / last-mile fulfillment network

Revenue share

68.3%

Side-by-side metrics

Mastercard Incorporated
Walmart Inc.
Ticker / Exchange
MA - New York Stock Exchange
WMT - New York Stock Exchange
Market cap (USD)
$516.9B
$894.3B
Sector
Financials
Consumer
HQ country
US
US
Primary segment
Payment Network
Walmart U.S.
Market structure
Oligopoly
Competitive
Market share
29.7% (reported)
20%-22% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
77 / 100
77 / 100
Moat domains
Network, Demand, Legal
Supply, Demand, Network, Financial
Last update
2025-12-21
2025-12-30

Moat coverage

Shared moat types

No overlap yet.

Mastercard Incorporated strengths

Two Sided NetworkClearing SettlementBrand TrustRegulated Standards PipeData Network EffectsData Workflow Lockin

Walmart Inc. strengths

Scale Economies Unit CostPhysical Network DensityHabit DefaultSupply Chain ControlEcosystem ComplementsFloat Prepayment

Segment mix

Mastercard Incorporated segments

Full profile >

Payment Network

Oligopoly

61.5%

Value-Added Services and Solutions

Competitive

38.5%

Walmart Inc. segments

Full profile >

Walmart U.S.

Competitive

68.3%

Walmart International

Competitive

18.1%

Sam's Club U.S.

Oligopoly

13.6%

Want the full wide moat stocks list?

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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.