VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

CSL Limited vs REA Group Ltd

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

CSL Limited

CSL · ASX

Market cap (USD)$84.4B
Gross margin (TTM)49%
Operating margin (TTM)23.5%
Net margin (TTM)23.1%
SectorHealthcare
IndustryBiotechnology
CountryAU
Data as of2026-01-02
Moat score
77/ 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 CSL Limited's moat claims, evidence, and risks.

View CSL 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 77 / 100 for CSL Limited).
  • Segment focus: CSL Limited has 3 segments (71.7% in CSL Behring); REA Group Ltd has 3 segments (87.5% in Australia - Property & Online Advertising).
  • Primary market structure: Oligopoly vs Duopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: CSL Limited has 7 moat types across 3 domains; REA Group Ltd has 6 across 3.

Primary market context

CSL Limited

CSL Behring

Market

Plasma-derived therapies (immunoglobulins, albumin, coagulation factors) plus recombinant and gene therapies for rare and serious diseases

Geography

Global

Customer

Hospitals, specialty pharmacies, physicians; payers and national health systems

Role

Vertically integrated biopharma (plasma collection -> fractionation/manufacturing -> commercial distribution)

Revenue share

71.7%

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

CSL Limited
REA Group Ltd
Ticker / Exchange
CSL - ASX
REA - ASX
Market cap (USD)
$84.4B
n/a
Gross margin (TTM)
49%
n/a
Operating margin (TTM)
23.5%
n/a
Net margin (TTM)
23.1%
n/a
Sector
Healthcare
Communication Services
Industry
Biotechnology
n/a
HQ country
AU
AU
Primary segment
CSL Behring
Australia - Property & Online Advertising
Market structure
Oligopoly
Duopoly
Market share
n/a
78%-82% (implied)
HHI estimate
n/a
6,800
Pricing power
Moderate
Strong
Moat score
77 / 100
91 / 100
Moat domains
Supply, Legal, Demand
Network, Demand, Supply
Last update
2026-01-02
2026-01-09

Moat coverage

Shared moat types

No overlap yet.

CSL Limited strengths

Supply Chain ControlPhysical Network DensityOperational ExcellenceGovernment Contracting RelationshipsRegulated Standards PipeCapacity MoatProcurement Inertia

REA Group Ltd strengths

Two Sided NetworkData Network EffectsData Workflow LockinBrand TrustDistribution ControlHabit Default

Segment mix

CSL Limited segments

Full profile >

CSL Behring

Oligopoly

71.7%

CSL Seqirus

Oligopoly

13.9%

CSL Vifor

Oligopoly

14.4%

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.

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.