VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

ASML Holding N.V. vs TransDigm Group Incorporated

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

ASML Holding N.V.

ASML · Euronext Amsterdam

Market cap (USD)$417.7B
SectorTechnology
CountryNL
Data as of2025-12-21
Moat score
76/ 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 ASML Holding N.V.'s moat claims, evidence, and risks.

View ASML analysis

TransDigm Group Incorporated

TDG · New York Stock Exchange

Market cap (USD)$74.1B
SectorIndustrials
CountryUS
Data as of2025-12-31
Moat score
84/ 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 TransDigm Group Incorporated's moat claims, evidence, and risks.

View TDG analysis

Comparison highlights

  • Moat score gap: TransDigm Group Incorporated leads (84 / 100 vs 76 / 100 for ASML Holding N.V.).
  • Segment focus: ASML Holding N.V. has 3 segments (23% in Installed Base Management (service, upgrades, field options)); TransDigm Group Incorporated has 3 segments (51.6% in Power & Control).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: Strong vs Strong.
  • Moat breadth: ASML Holding N.V. has 6 moat types across 2 domains; TransDigm Group Incorporated has 5 across 3.

Primary market context

ASML Holding N.V.

Installed Base Management (service, upgrades, field options)

Market

Service, upgrades and field options for installed ASML lithography tools

Geography

Global

Customer

Owners/operators of ASML lithography systems

Role

Aftermarket service provider

Revenue share

23%

TransDigm Group Incorporated

Power & Control

Market

Highly engineered aerospace power & control components (OEM and aftermarket)

Geography

Global

Customer

Commercial airlines, aircraft OEMs, defense OEMs, governments, aerospace distributors

Role

Tier 2/3 component OEM, aftermarket spares, repair/overhaul

Revenue share

51.6%

Side-by-side metrics

ASML Holding N.V.
TransDigm Group Incorporated
Ticker / Exchange
ASML - Euronext Amsterdam
TDG - New York Stock Exchange
Market cap (USD)
$417.7B
$74.1B
Sector
Technology
Industrials
HQ country
NL
US
Primary segment
Installed Base Management (service, upgrades, field options)
Power & Control
Market structure
Quasi-Monopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
76 / 100
84 / 100
Moat domains
Supply, Demand
Demand, Legal, Supply
Last update
2025-12-21
2025-12-31

Moat coverage

Shared moat types

Installed Base Consumables

ASML Holding N.V. strengths

Supply Chain ControlCapex Knowhow ScaleBrand TrustSwitching Costs GeneralService Field Network

TransDigm Group Incorporated strengths

Design In QualificationRegulated Standards PipeOperational ExcellenceSmall legacy non-aviation portfolio

Segment mix

ASML Holding N.V. segments

Full profile >

EUV lithography systems (incl. High-NA)

Monopoly

n/a

DUV lithography systems

Oligopoly

n/a

Installed Base Management (service, upgrades, field options)

Quasi-Monopoly

23%

TransDigm Group Incorporated segments

Full profile >

Power & Control

Competitive

51.6%

Airframe

Competitive

46.6%

Non-aviation

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

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.