VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Fastenal Company vs Teradyne, Inc.

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

Fastenal Company

FAST · Nasdaq Stock Market

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
CountryUS
Data as of2026-01-01
Moat score
60/ 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 Fastenal Company's moat claims, evidence, and risks.

View FAST analysis

Teradyne, Inc.

TER · Nasdaq Stock Market

Market cap (USD)$31B
Gross margin (TTM)58.9%
Operating margin (TTM)17.9%
Net margin (TTM)15.5%
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 60 / 100 for Fastenal Company).
  • Segment focus: Fastenal Company has 3 segments (54.5% in Branch-based distribution (in-market branches)); Teradyne, Inc. has 3 segments (77.9% in Semiconductor Test).
  • Primary market structure: Competitive vs Duopoly. Pricing power: Weak vs Moderate.
  • Moat breadth: Fastenal Company has 5 moat types across 2 domains; Teradyne, Inc. has 6 across 3.

Primary market context

Fastenal Company

Branch-based distribution (in-market branches)

Market

Industrial & construction supplies distribution (MRO/OEM consumables) via local branches

Geography

North America (primary) + select international

Customer

B2B

Role

Distributor / MRO supplier

Revenue share

54.5%

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

Fastenal Company
Teradyne, Inc.
Ticker / Exchange
FAST - Nasdaq Stock Market
TER - Nasdaq Stock Market
Market cap (USD)
n/a
$31B
Gross margin (TTM)
n/a
58.9%
Operating margin (TTM)
n/a
17.9%
Net margin (TTM)
n/a
15.5%
Sector
Industrials
Technology
HQ country
US
US
Primary segment
Branch-based distribution (in-market branches)
Semiconductor Test
Market structure
Competitive
Duopoly
Market share
n/a
27%-30% (implied)
HHI estimate
n/a
3,565
Pricing power
Weak
Moderate
Moat score
60 / 100
79 / 100
Moat domains
Supply, Demand
Demand, Supply, Network
Last update
2026-01-01
2025-12-23

Moat coverage

Shared moat types

Switching Costs General

Fastenal Company strengths

Physical Network DensityOperational ExcellenceData Workflow LockinScope Economies

Teradyne, Inc. strengths

Format Lock InCapex Knowhow ScaleDesign In QualificationEcosystem ComplementsBrand Trust

Segment mix

Fastenal Company segments

Full profile >

Branch-based distribution (in-market branches)

Competitive

54.5%

Onsite solutions (embedded customer locations)

Competitive

42.4%

Other / non-traditional sales (services & custom manufacturing)

Competitive

3.1%

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.