VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

AMETEK, Inc. vs Northrop Grumman Corporation

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

AMETEK, Inc.

AME · New York Stock Exchange

Market cap (USD)$47.3B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorIndustrials
Industry
CountryUS
Data as of2026-01-02
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 AMETEK, Inc.'s moat claims, evidence, and risks.

View AME analysis

Northrop Grumman Corporation

NOC · New York Stock Exchange

Market cap (USD)$82.5B
Gross margin (TTM)19.4%
Operating margin (TTM)10.6%
Net margin (TTM)9.8%
SectorIndustrials
IndustryAerospace & Defense
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

Comparison highlights

  • Moat score gap: Northrop Grumman Corporation leads (72 / 100 vs 66 / 100 for AMETEK, Inc.).
  • Segment focus: AMETEK, Inc. has 2 segments (67.1% in Electronic Instruments Group (EIG)); Northrop Grumman Corporation has 4 segments (28.7% in Aeronautics Systems).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: AMETEK, Inc. has 3 moat types across 1 domains; Northrop Grumman Corporation has 6 across 3.

Primary market context

AMETEK, Inc.

Electronic Instruments Group (EIG)

Market

Advanced analytical, test and measurement instruments

Geography

Global

Customer

B2B (process, industrial, aerospace, medical, research)

Role

Instrument/OEM supplier

Revenue share

67.1%

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%

Side-by-side metrics

AMETEK, Inc.
Northrop Grumman Corporation
Ticker / Exchange
AME - New York Stock Exchange
NOC - New York Stock Exchange
Market cap (USD)
$47.3B
$82.5B
Gross margin (TTM)
n/a
19.4%
Operating margin (TTM)
n/a
10.6%
Net margin (TTM)
n/a
9.8%
Sector
Industrials
Industrials
Industry
n/a
Aerospace & Defense
HQ country
US
US
Primary segment
Electronic Instruments Group (EIG)
Aeronautics Systems
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
66 / 100
72 / 100
Moat domains
Supply
Legal, Demand, Supply
Last update
2026-01-02
2025-12-26

Moat coverage

Shared moat types

Capex Knowhow Scale

AMETEK, Inc. strengths

Operational ExcellenceScope Economies

Northrop Grumman Corporation strengths

Government Contracting RelationshipsDesign In QualificationCompliance AdvantageCapacity MoatSwitching Costs General

Segment mix

AMETEK, Inc. segments

Full profile >

Electronic Instruments Group (EIG)

Oligopoly

67.1%

Electromechanical Group (EMG)

Competitive

32.9%

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%

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.