VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Interactive Brokers Group, Inc. vs REA Group Ltd

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

Interactive Brokers Group, Inc.

IBKR · NASDAQ

Market cap (USD)$121.7B
Gross margin (TTM)89%
Operating margin (TTM)82.7%
Net margin (TTM)9.2%
SectorFinancials
IndustryInvestment - Banking & Investment Services
CountryUS
Data as of2026-01-06
Moat score
60/ 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 Interactive Brokers Group, Inc.'s moat claims, evidence, and risks.

View IBKR 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 60 / 100 for Interactive Brokers Group, Inc.).
  • Segment focus: Interactive Brokers Group, Inc. has 1 segment (100% in Electronic brokerage); REA Group Ltd has 3 segments (87.5% in Australia - Property & Online Advertising).
  • Primary market structure: Competitive vs Duopoly. Pricing power: Weak vs Strong.
  • Moat breadth: Interactive Brokers Group, Inc. has 4 moat types across 4 domains; REA Group Ltd has 6 across 3.

Primary market context

Interactive Brokers Group, Inc.

Electronic brokerage

Market

Multi-asset electronic brokerage, clearing, custody, and financing (self-directed and institutional)

Geography

Global

Customer

Individual investors and institutional clients (e.g., hedge funds, advisors, proprietary trading firms, introducing brokers)

Role

Broker-dealer / clearing broker / platform operator

Revenue share

100%

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

Interactive Brokers Group, Inc.
REA Group Ltd
Ticker / Exchange
IBKR - NASDAQ
REA - ASX
Market cap (USD)
$121.7B
n/a
Gross margin (TTM)
89%
n/a
Operating margin (TTM)
82.7%
n/a
Net margin (TTM)
9.2%
n/a
Sector
Financials
Communication Services
Industry
Investment - Banking & Investment Services
n/a
HQ country
US
AU
Primary segment
Electronic brokerage
Australia - Property & Online Advertising
Market structure
Competitive
Duopoly
Market share
n/a
78%-82% (implied)
HHI estimate
n/a
6,800
Pricing power
Weak
Strong
Moat score
60 / 100
91 / 100
Moat domains
Supply, Network, Legal, Demand
Network, Demand, Supply
Last update
2026-01-06
2026-01-09

Moat coverage

Shared moat types

Data Workflow Lockin

Interactive Brokers Group, Inc. strengths

Operational ExcellenceInteroperability HubCompliance Advantage

REA Group Ltd strengths

Two Sided NetworkData Network EffectsBrand TrustDistribution ControlHabit Default

Segment mix

Interactive Brokers Group, Inc. segments

Full profile >

Electronic brokerage

Competitive

100%

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?

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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.