VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Huntington Ingalls Industries, Inc. vs Martin Marietta Materials, Inc.

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

Huntington Ingalls Industries, Inc.

HII · New York Stock Exchange

Market cap (USD)$13.6B
Gross margin (TTM)12.5%
Operating margin (TTM)4.8%
Net margin (TTM)4.7%
SectorIndustrials
IndustryAerospace & Defense
CountryUS
Data as of2025-12-23
Moat score
83/ 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 Huntington Ingalls Industries, Inc.'s moat claims, evidence, and risks.

View HII analysis

Martin Marietta Materials, Inc.

MLM · NYSE

Market cap (USD)$37.9B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
78/ 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 Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.

View MLM analysis

Comparison highlights

  • Moat score gap: Huntington Ingalls Industries, Inc. leads (83 / 100 vs 78 / 100 for Martin Marietta Materials, Inc.).
  • Segment focus: Huntington Ingalls Industries, Inc. has 3 segments (51.7% in Newport News Shipbuilding (Nuclear Shipbuilding)); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Huntington Ingalls Industries, Inc. has 6 moat types across 3 domains; Martin Marietta Materials, Inc. has 4 across 2.

Primary market context

Huntington Ingalls Industries, Inc.

Newport News Shipbuilding (Nuclear Shipbuilding)

Market

U.S. Navy nuclear shipbuilding and carrier lifecycle services (CVN construction/RCOH/inactivation + SSN/SSBN construction)

Geography

United States

Customer

U.S. Government (U.S. Navy)

Role

Prime contractor shipyard / integrator

Revenue share

51.7%

Martin Marietta Materials, Inc.

East Group

Market

Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets

Geography

United States (East/Southeast and adjacent regions)

Customer

Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)

Role

Quarry/mining operator and building materials producer/distributor

Revenue share

52.4%

Side-by-side metrics

Huntington Ingalls Industries, Inc.
Martin Marietta Materials, Inc.
Ticker / Exchange
HII - New York Stock Exchange
MLM - NYSE
Market cap (USD)
$13.6B
$37.9B
Gross margin (TTM)
12.5%
n/a
Operating margin (TTM)
4.8%
n/a
Net margin (TTM)
4.7%
n/a
Sector
Industrials
Materials
Industry
Aerospace & Defense
Construction Materials
HQ country
US
US
Primary segment
Newport News Shipbuilding (Nuclear Shipbuilding)
East Group
Market structure
Quasi-Monopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
83 / 100
78 / 100
Moat domains
Legal, Supply, Demand
Supply, Financial
Last update
2025-12-23
2026-01-01

Moat coverage

Shared moat types

Capex Knowhow Scale

Huntington Ingalls Industries, Inc. strengths

Contractual ExclusivityCompliance AdvantageDesign In QualificationLong Term ContractsGovernment Contracting Relationships

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalBenchmark Pricing Power

Segment mix

Huntington Ingalls Industries, Inc. segments

Full profile >

Newport News Shipbuilding (Nuclear Shipbuilding)

Quasi-Monopoly

51.7%

Ingalls Shipbuilding (Non-Nuclear Shipbuilding)

Quasi-Monopoly

23.9%

Mission Technologies (Defense Tech & Services)

Competitive

24.4%

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

Oligopoly

6.7%

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.