VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

Eaton Corporation plc vs Teradyne, Inc.

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

Eaton Corporation plc

ETN · New York Stock Exchange

Market cap (USD)$124.6B
SectorIndustrials
CountryIE
Data as of2025-12-31
Moat score
66/ 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 Eaton Corporation plc's moat claims, evidence, and risks.

View ETN 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 66 / 100 for Eaton Corporation plc).
  • Segment focus: Eaton Corporation plc has 5 segments (46% in Electrical Americas); Teradyne, Inc. has 3 segments (77.9% in Semiconductor Test).
  • Primary market structure: Oligopoly vs Duopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Eaton Corporation plc has 7 moat types across 3 domains; Teradyne, Inc. has 6 across 3.

Primary market context

Eaton Corporation plc

Electrical Americas

Market

Electrical components, power distribution systems/assemblies, and related services (Americas)

Geography

North and South America

Customer

Industrial, commercial/institutional, utilities, residential, and IT/data center customers (end users and channel partners)

Role

Manufacturer + systems/assembly provider + service provider

Revenue share

46%

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

Eaton Corporation plc
Teradyne, Inc.
Ticker / Exchange
ETN - New York Stock Exchange
TER - Nasdaq Stock Market
Market cap (USD)
$124.6B
$31B
Sector
Industrials
Technology
HQ country
IE
US
Primary segment
Electrical Americas
Semiconductor Test
Market structure
Oligopoly
Duopoly
Market share
n/a
27%-30% (implied)
HHI estimate
n/a
3,565
Pricing power
Moderate
Moderate
Moat score
66 / 100
79 / 100
Moat domains
Supply, Demand, Legal
Demand, Supply, Network
Last update
2025-12-31
2025-12-23

Moat coverage

Shared moat types

Design In Qualification

Eaton Corporation plc strengths

Distribution ControlScope EconomiesCompliance AdvantageInstalled Base ConsumablesLong Term ContractsService Field Network

Teradyne, Inc. strengths

Format Lock InCapex Knowhow ScaleSwitching Costs GeneralEcosystem ComplementsBrand Trust

Segment mix

Eaton Corporation plc segments

Full profile >

Electrical Americas

Oligopoly

46%

Electrical Global

Oligopoly

25.1%

Aerospace

Oligopoly

15%

Vehicle

Competitive

11.2%

eMobility

Competitive

2.7%

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?

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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.