VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Sunday, January 11, 2026
Stock Comparison
CoStar Group, Inc. vs REA Group Ltd
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
CoStar Group, Inc.
CSGP · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into CoStar Group, Inc.'s moat claims, evidence, and risks.
View CSGP analysisREA Group Ltd
REA · ASX
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 analysisComparison highlights
- Moat score gap: REA Group Ltd leads (91 / 100 vs 75 / 100 for CoStar Group, Inc.).
- Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); REA Group Ltd has 3 segments (87.5% in Australia - Property & Online Advertising).
- Primary market structure: Oligopoly vs Duopoly. Pricing power: Strong vs Strong.
- Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; REA Group Ltd has 6 across 3.
Primary market context
CoStar Group, Inc.
Multifamily (Apartments.com Network)
Online multifamily rental marketplaces and advertising
United States
Two-sided (renters + property managers/owners)
Marketplace (subscription advertising + workflow tools)
39%
REA Group Ltd
Australia - Property & Online Advertising
Australian online property classifieds & digital real estate advertising (residential + commercial listings)
Australia
Real estate agents/agencies and developers (advertisers) + property seekers (consumers)
Marketplace operator / media & advertising platform
87.5%
Side-by-side metrics
Moat coverage
Shared moat types
CoStar Group, Inc. strengths
REA Group Ltd strengths
Segment mix
CoStar Group, Inc. segments
Full profile >CoStar (commercial real estate info & analytics)
Oligopoly
Information Services (lease management software + international info)
Competitive
Multifamily (Apartments.com Network)
Oligopoly
LoopNet (commercial property marketing marketplace)
Oligopoly
Residential (Homes.com + OnTheMarket)
Oligopoly
Other Marketplaces (Ten-X, Land.com, BizBuySell, etc.)
Competitive
REA Group Ltd segments
Full profile >Australia - Property & Online Advertising
Duopoly
Australia - Financial Services
Competitive
India - Online Property Classifieds
Oligopoly
Want the full wide moat stocks list?
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View the moat stocks listLooking for expansion-stage stocks?
Proven models entering the expansion stage with unit economics that work.
View expansion-stage stocksCuration & 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.