VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

BAE Systems plc vs Berkshire Hathaway Inc.

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

BAE Systems plc

BA. · London Stock Exchange

Market cap (USD)
SectorIndustrials
CountryGB
Data as of2025-12-28
Moat score
75/ 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 BAE Systems plc's moat claims, evidence, and risks.

View BA. analysis

Berkshire Hathaway Inc.

BRK.B · New York Stock Exchange

Market cap (USD)
SectorFinancials
CountryUS
Data as of2025-12-30
Moat score
64/ 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 Berkshire Hathaway Inc.'s moat claims, evidence, and risks.

View BRK.B analysis

Comparison highlights

  • Moat score gap: BAE Systems plc leads (75 / 100 vs 64 / 100 for Berkshire Hathaway Inc.).
  • Segment focus: BAE Systems plc has 5 segments (26.6% in Electronic Systems); Berkshire Hathaway Inc. has 11 segments (28.3% in Insurance (underwriting + investment income)).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs n/a.
  • Moat breadth: BAE Systems plc has 8 moat types across 3 domains; Berkshire Hathaway Inc. has 17 across 4.

Primary market context

BAE Systems plc

Electronic Systems

Market

Defence electronics (electronic warfare, avionics, C4ISR, space payloads and mission systems)

Geography

Primarily US and UK; global programmes

Customer

Government defence and intelligence agencies; prime contractors

Role

Subsystem OEM and prime contractor for electronics/mission systems

Revenue share

26.6%

Berkshire Hathaway Inc.

Insurance (underwriting + investment income)

Market

Insurance and reinsurance (property and casualty + life/health), including float-funded investing

Geography

Global

Customer

Consumers and businesses (policyholders) and insurers (reinsurance cedents)

Role

Underwriter and reinsurer plus investment manager of float

Revenue share

28.3%

Side-by-side metrics

BAE Systems plc
Berkshire Hathaway Inc.
Ticker / Exchange
BA. - London Stock Exchange
BRK.B - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Industrials
Financials
HQ country
GB
US
Primary segment
Electronic Systems
Insurance (underwriting + investment income)
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
n/a
Moat score
75 / 100
64 / 100
Moat domains
Legal, Demand, Supply
Financial, Supply, Demand, Legal
Last update
2025-12-28
2025-12-30

Moat coverage

Shared moat types

Design In QualificationService Field NetworkLong Term ContractsCapex Knowhow ScaleCapacity Moat

BAE Systems plc strengths

Government Contracting RelationshipsCompliance AdvantageSwitching Costs General

Berkshire Hathaway Inc. strengths

Float PrepaymentBrand TrustPhysical Network DensityConcession LicensePermits Rights Of WayIP Choke PointScale Economies Unit CostDistribution ControlTraining Org Change CostsPreferential Input AccessScope EconomiesCost Of Capital Advantage

Segment mix

BAE Systems plc segments

Full profile >

Electronic Systems

Oligopoly

26.6%

Platforms & Services

Oligopoly

16.3%

Air

Oligopoly

26%

Maritime

Oligopoly

22.5%

Cyber & Intelligence

Competitive

8.6%

Berkshire Hathaway Inc. segments

Full profile >

Insurance (underwriting + investment income)

Competitive

28.3%

BNSF Railway (freight rail transportation)

Oligopoly

6.4%

Berkshire Hathaway Energy (regulated utilities, pipelines, renewables)

Monopoly

7.1%

Industrial products manufacturing (PCC, Lubrizol, IMC, Marmon, etc.)

Oligopoly

9.7%

Building products & housing (Clayton Homes, Shaw, Johns Manville, Benjamin Moore, etc.)

Competitive

7.2%

Consumer products manufacturing (Duracell, Forest River, apparel/footwear, toys, etc.)

Competitive

4%

Service businesses (FlightSafety, NetJets, TTI, Dairy Queen, etc.)

Competitive

5.6%

Retailing businesses (Berkshire Hathaway Automotive, home furnishings, jewelry, See's, etc.)

Competitive

5.2%

Pilot Travel Centers (travel centers + wholesale fuel marketing)

Oligopoly

12.6%

McLane (wholesale distribution to convenience stores and restaurants)

Oligopoly

14%

Holding company capital allocation and investing

Competitive

n/a

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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.