VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Auto Trader Group plc vs Huntington Ingalls Industries, Inc.

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

Auto Trader Group plc

AUTO · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorCommunication Services
Industry
CountryGB
Data as of2026-01-10
Moat score
96/ 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 Auto Trader Group plc's moat claims, evidence, and risks.

View AUTO analysis

Huntington Ingalls Industries, Inc.

HII · New York Stock Exchange

Market cap (USD)$15.2B
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

Comparison highlights

  • Moat score gap: Auto Trader Group plc leads (96 / 100 vs 83 / 100 for Huntington Ingalls Industries, Inc.).
  • Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); Huntington Ingalls Industries, Inc. has 3 segments (51.7% in Newport News Shipbuilding (Nuclear Shipbuilding)).
  • Primary market structure: Quasi-Monopoly vs Quasi-Monopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Auto Trader Group plc has 4 moat types across 2 domains; Huntington Ingalls Industries, Inc. has 6 across 3.

Primary market context

Auto Trader Group plc

Autotrader (UK automotive marketplace & data platform)

Market

UK digital automotive marketplace (new & used) with retailer advertising/data products

Geography

United Kingdom

Customer

Consumers, vehicle retailers, OEMs/advertising agencies

Role

Two-sided marketplace + advertising/data & workflow tools

Revenue share

93.3%

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%

Side-by-side metrics

Auto Trader Group plc
Huntington Ingalls Industries, Inc.
Ticker / Exchange
AUTO - London Stock Exchange
HII - New York Stock Exchange
Market cap (USD)
n/a
$15.2B
Gross margin (TTM)
n/a
12.5%
Operating margin (TTM)
n/a
4.8%
Net margin (TTM)
n/a
4.7%
Sector
Communication Services
Industrials
Industry
n/a
Aerospace & Defense
HQ country
GB
US
Primary segment
Autotrader (UK automotive marketplace & data platform)
Newport News Shipbuilding (Nuclear Shipbuilding)
Market structure
Quasi-Monopoly
Quasi-Monopoly
Market share
75%-80% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
96 / 100
83 / 100
Moat domains
Network, Demand
Legal, Supply, Demand
Last update
2026-01-10
2025-12-23

Moat coverage

Shared moat types

No overlap yet.

Auto Trader Group plc strengths

Two Sided NetworkData Workflow LockinHabit DefaultEcosystem Complements

Huntington Ingalls Industries, Inc. strengths

Contractual ExclusivityCapex Knowhow ScaleCompliance AdvantageDesign In QualificationLong Term ContractsGovernment Contracting Relationships

Segment mix

Auto Trader Group plc segments

Full profile >

Autotrader (UK automotive marketplace & data platform)

Quasi-Monopoly

93.3%

Autorama (vehicle leasing marketplace)

Competitive

6.7%

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%

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

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

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.