VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

W.W. Grainger, Inc. vs Mastercard Incorporated

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

W.W. Grainger, Inc.

GWW · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2026-01-01
Moat score
65/ 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 W.W. Grainger, Inc.'s moat claims, evidence, and risks.

View GWW analysis

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

Comparison highlights

  • Moat score gap: Mastercard Incorporated leads (77 / 100 vs 65 / 100 for W.W. Grainger, Inc.).
  • Segment focus: W.W. Grainger, Inc. has 3 segments (79.9% in High-Touch Solutions N.A.); Mastercard Incorporated has 2 segments (61.5% in Payment Network).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: W.W. Grainger, Inc. has 5 moat types across 2 domains; Mastercard Incorporated has 6 across 3.

Primary market context

W.W. Grainger, Inc.

High-Touch Solutions N.A.

Market

MRO (maintenance, repair and operations) products distribution and value-added inventory/procurement solutions

Geography

North America (U.S., Canada, Mexico, Puerto Rico)

Customer

Mid-size and large businesses with complex purchasing operations; also government and institutions

Role

Distributor / wholesaler + onsite inventory services

Revenue share

79.9%

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%

Side-by-side metrics

W.W. Grainger, Inc.
Mastercard Incorporated
Ticker / Exchange
GWW - New York Stock Exchange
MA - New York Stock Exchange
Market cap (USD)
n/a
$516.9B
Sector
Industrials
Financials
HQ country
US
US
Primary segment
High-Touch Solutions N.A.
Payment Network
Market structure
Competitive
Oligopoly
Market share
n/a
29.7% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
65 / 100
77 / 100
Moat domains
Supply, Demand
Network, Demand, Legal
Last update
2026-01-01
2025-12-21

Moat coverage

Shared moat types

Data Workflow Lockin

W.W. Grainger, Inc. strengths

Service Field NetworkScale Economies Unit CostScope EconomiesOperational Excellence

Mastercard Incorporated strengths

Two Sided NetworkClearing SettlementBrand TrustRegulated Standards PipeData Network Effects

Segment mix

W.W. Grainger, Inc. segments

Full profile >

High-Touch Solutions N.A.

Competitive

79.9%

Endless Assortment

Competitive

18.3%

Other (Cromwell U.K. + captive insurance)

Competitive

1.8%

Mastercard Incorporated segments

Full profile >

Payment Network

Oligopoly

61.5%

Value-Added Services and Solutions

Competitive

38.5%

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.