VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

W.W. Grainger, Inc. vs Teradyne, Inc.

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

Teradyne, Inc.

TER · Nasdaq Stock Market

Market cap (USD)$31B
SectorTechnology
CountryUS
Data as of2025-12-23
Moat score
79/ 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 Teradyne, Inc.'s moat claims, evidence, and risks.

View TER analysis

Comparison highlights

  • Moat score gap: Teradyne, Inc. leads (79 / 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.); Teradyne, Inc. has 3 segments (77.9% in Semiconductor Test).
  • Primary market structure: Competitive vs Duopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: W.W. Grainger, Inc. has 5 moat types across 2 domains; Teradyne, Inc. 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%

Teradyne, Inc.

Semiconductor Test

Market

Semiconductor automated test equipment (ATE) and system-level test (SLT)

Geography

Global

Customer

IDMs, foundries, fabless, OSATs

Role

Capital equipment supplier

Revenue share

77.9%

Side-by-side metrics

W.W. Grainger, Inc.
Teradyne, Inc.
Ticker / Exchange
GWW - New York Stock Exchange
TER - Nasdaq Stock Market
Market cap (USD)
n/a
$31B
Sector
Industrials
Technology
HQ country
US
US
Primary segment
High-Touch Solutions N.A.
Semiconductor Test
Market structure
Competitive
Duopoly
Market share
n/a
27%-30% (implied)
HHI estimate
n/a
3,565
Pricing power
Moderate
Moderate
Moat score
65 / 100
79 / 100
Moat domains
Supply, Demand
Demand, Supply, Network
Last update
2026-01-01
2025-12-23

Moat coverage

Shared moat types

No overlap yet.

W.W. Grainger, Inc. strengths

Service Field NetworkData Workflow LockinScale Economies Unit CostScope EconomiesOperational Excellence

Teradyne, Inc. strengths

Format Lock InCapex Knowhow ScaleDesign In QualificationSwitching Costs GeneralEcosystem ComplementsBrand Trust

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%

Teradyne, Inc. segments

Full profile >

Semiconductor Test

Duopoly

77.9%

Product Test

Competitive

11.7%

Robotics

Competitive

10.4%

Want the full wide moat stocks list?

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

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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.