VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Northrop Grumman Corporation vs TransDigm Group Incorporated

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

Northrop Grumman Corporation

NOC · New York Stock Exchange

Market cap (USD)$83.1B
SectorIndustrials
CountryUS
Data as of2025-12-26
Moat score
72/ 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 Northrop Grumman Corporation's moat claims, evidence, and risks.

View NOC 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 72 / 100 for Northrop Grumman Corporation).
  • Segment focus: Northrop Grumman Corporation has 4 segments (28.7% in Aeronautics Systems); TransDigm Group Incorporated has 3 segments (51.6% in Power & Control).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Strong.
  • Moat breadth: Northrop Grumman Corporation has 6 moat types across 3 domains; TransDigm Group Incorporated has 5 across 3.

Primary market context

Northrop Grumman Corporation

Aeronautics Systems

Market

Military aircraft systems (manned & unmanned) plus sustainment/modernization

Geography

Global (primarily United States and allies)

Customer

U.S. government and allied governments

Role

Prime contractor and major subsystem supplier

Revenue share

28.7%

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

Northrop Grumman Corporation
TransDigm Group Incorporated
Ticker / Exchange
NOC - New York Stock Exchange
TDG - New York Stock Exchange
Market cap (USD)
$83.1B
$74.1B
Sector
Industrials
Industrials
HQ country
US
US
Primary segment
Aeronautics Systems
Power & Control
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
72 / 100
84 / 100
Moat domains
Legal, Demand, Supply
Demand, Legal, Supply
Last update
2025-12-26
2025-12-31

Moat coverage

Shared moat types

Design In Qualification

Northrop Grumman Corporation strengths

Government Contracting RelationshipsCompliance AdvantageCapacity MoatSwitching Costs GeneralCapex Knowhow Scale

TransDigm Group Incorporated strengths

Installed Base ConsumablesRegulated Standards PipeOperational ExcellenceSmall legacy non-aviation portfolio

Segment mix

Northrop Grumman Corporation segments

Full profile >

Aeronautics Systems

Oligopoly

28.7%

Defense Systems

Oligopoly

18.8%

Mission Systems

Oligopoly

24.9%

Space Systems

Oligopoly

27.6%

TransDigm Group Incorporated segments

Full profile >

Power & Control

Competitive

51.6%

Airframe

Competitive

46.6%

Non-aviation

Competitive

1.8%

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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.