VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Sunday, January 11, 2026

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Stock Comparison

Fiserv, Inc. vs W.W. Grainger, Inc.

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

Fiserv, Inc.

FISV · NASDAQ

Market cap (USD)$37.7B
Gross margin (TTM)—
Operating margin (TTM)—
Net margin (TTM)—
SectorFinancials
Industry—
CountryUS
Data as of2026-01-10
Moat score
67/ 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 Fiserv, Inc.'s moat claims, evidence, and risks.

View FISV analysis

W.W. Grainger, Inc.

GWW · New York Stock Exchange

Market cap (USD)$49B
Gross margin (TTM)39.1%
Operating margin (TTM)14.1%
Net margin (TTM)9.8%
SectorIndustrials
IndustryIndustrial - Distribution
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

Comparison highlights

  • Moat score gap: Fiserv, Inc. leads (67 / 100 vs 65 / 100 for W.W. Grainger, Inc.).
  • Segment focus: Fiserv, Inc. has 2 segments (50.4% in Merchant); W.W. Grainger, Inc. has 3 segments (79.9% in High-Touch Solutions N.A.).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Fiserv, Inc. has 6 moat types across 3 domains; W.W. Grainger, Inc. has 5 across 2.

Primary market context

Fiserv, Inc.

Merchant

Market

Merchant acquiring and commerce enablement (SMB + enterprise omnichannel payments, POS, gateway/orchestration, and related software)

Geography

Global

Customer

Merchants (SMB and enterprise), plus channel partners (ISVs/ISOs/financial institutions) that serve or refer merchants

Role

Merchant acquirer / payment processor / commerce and POS platform provider

Revenue share

50.4%

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%

Side-by-side metrics

Fiserv, Inc.
W.W. Grainger, Inc.
Ticker / Exchange
FISV - NASDAQ
GWW - New York Stock Exchange
Market cap (USD)
$37.7B
$49B
Gross margin (TTM)
n/a
39.1%
Operating margin (TTM)
n/a
14.1%
Net margin (TTM)
n/a
9.8%
Sector
Financials
Industrials
Industry
n/a
Industrial - Distribution
HQ country
US
US
Primary segment
Merchant
High-Touch Solutions N.A.
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
67 / 100
65 / 100
Moat domains
Network, Supply, Demand
Supply, Demand
Last update
2026-01-10
2026-01-01

Moat coverage

Shared moat types

Scale Economies Unit Cost

Fiserv, Inc. strengths

Ecosystem ComplementsDistribution ControlTraining Org Change CostsTwo Sided NetworkSuite Bundling

W.W. Grainger, Inc. strengths

Service Field NetworkData Workflow LockinScope EconomiesOperational Excellence

Segment mix

Fiserv, Inc. segments

Full profile >

Merchant

Oligopoly

50.4%

Financial

Oligopoly

49.6%

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%

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.