VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Berkshire Hathaway Inc. vs REA Group Ltd

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

Berkshire Hathaway Inc.

BRK.B · New York Stock Exchange

Market cap (USD)$1.1T
Gross margin (TTM)28.7%
Operating margin (TTM)15.8%
Net margin (TTM)17.8%
SectorFinancials
IndustryInsurance - Diversified
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

REA Group Ltd

REA · ASX

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorCommunication Services
Industry
CountryAU
Data as of2026-01-09
Moat score
91/ 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 REA Group Ltd's moat claims, evidence, and risks.

View REA analysis

Comparison highlights

  • Moat score gap: REA Group Ltd leads (91 / 100 vs 64 / 100 for Berkshire Hathaway Inc.).
  • Segment focus: Berkshire Hathaway Inc. has 11 segments (28.3% in Insurance (underwriting + investment income)); REA Group Ltd has 3 segments (87.5% in Australia - Property & Online Advertising).
  • Primary market structure: Competitive vs Duopoly. Pricing power: n/a vs Strong.
  • Moat breadth: Berkshire Hathaway Inc. has 17 moat types across 4 domains; REA Group Ltd has 6 across 3.

Primary market context

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%

REA Group Ltd

Australia - Property & Online Advertising

Market

Australian online property classifieds & digital real estate advertising (residential + commercial listings)

Geography

Australia

Customer

Real estate agents/agencies and developers (advertisers) + property seekers (consumers)

Role

Marketplace operator / media & advertising platform

Revenue share

87.5%

Side-by-side metrics

Berkshire Hathaway Inc.
REA Group Ltd
Ticker / Exchange
BRK.B - New York Stock Exchange
REA - ASX
Market cap (USD)
$1.1T
n/a
Gross margin (TTM)
28.7%
n/a
Operating margin (TTM)
15.8%
n/a
Net margin (TTM)
17.8%
n/a
Sector
Financials
Communication Services
Industry
Insurance - Diversified
n/a
HQ country
US
AU
Primary segment
Insurance (underwriting + investment income)
Australia - Property & Online Advertising
Market structure
Competitive
Duopoly
Market share
n/a
78%-82% (implied)
HHI estimate
n/a
6,800
Pricing power
n/a
Strong
Moat score
64 / 100
91 / 100
Moat domains
Financial, Supply, Demand, Legal
Network, Demand, Supply
Last update
2025-12-30
2026-01-09

Moat coverage

Shared moat types

Brand TrustDistribution Control

Berkshire Hathaway Inc. strengths

Float PrepaymentCapacity MoatPhysical Network DensityLong Term ContractsConcession LicensePermits Rights Of WayDesign In QualificationCapex Knowhow ScaleIP Choke PointScale Economies Unit CostTraining Org Change CostsPreferential Input AccessService Field NetworkScope EconomiesCost Of Capital Advantage

REA Group Ltd strengths

Two Sided NetworkData Network EffectsData Workflow LockinHabit Default

Segment mix

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

REA Group Ltd segments

Full profile >

Australia - Property & Online Advertising

Duopoly

87.5%

Australia - Financial Services

Competitive

4.8%

India - Online Property Classifieds

Oligopoly

7.7%

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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Looking for expansion-stage stocks?

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

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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.