VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

CoStar Group, Inc. vs Meta Platforms, Inc.

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

CoStar Group, Inc.

CSGP · NASDAQ

Market cap (USD)$28.6B
SectorReal Estate
CountryUS
Data as of2025-12-29
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 CoStar Group, Inc.'s moat claims, evidence, and risks.

View CSGP analysis

Meta Platforms, Inc.

META · Nasdaq Global Select Market

Market cap (USD)$1.8T
SectorCommunication Services
CountryUS
Data as of2025-12-26
Moat score
94/ 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 Meta Platforms, Inc.'s moat claims, evidence, and risks.

View META analysis

Comparison highlights

  • Moat score gap: Meta Platforms, Inc. leads (94 / 100 vs 75 / 100 for CoStar Group, Inc.).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); Meta Platforms, Inc. has 2 segments (98.7% in Family of Apps (FoA)).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; Meta Platforms, Inc. has 6 across 2.

Primary market context

CoStar Group, Inc.

Multifamily (Apartments.com Network)

Market

Online multifamily rental marketplaces and advertising

Geography

United States

Customer

Two-sided (renters + property managers/owners)

Role

Marketplace (subscription advertising + workflow tools)

Revenue share

39%

Meta Platforms, Inc.

Family of Apps (FoA)

Market

Global social media platforms & social media advertising

Geography

Global

Customer

Consumers and advertisers

Role

Two-sided platform (attention + ad auction)

Revenue share

98.7%

Side-by-side metrics

CoStar Group, Inc.
Meta Platforms, Inc.
Ticker / Exchange
CSGP - NASDAQ
META - Nasdaq Global Select Market
Market cap (USD)
$28.6B
$1.8T
Sector
Real Estate
Communication Services
HQ country
US
US
Primary segment
Multifamily (Apartments.com Network)
Family of Apps (FoA)
Market structure
Oligopoly
Oligopoly
Market share
n/a
55%-65% (estimated)
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
75 / 100
94 / 100
Moat domains
Supply, Network, Demand, Legal
Network, Supply
Last update
2025-12-29
2025-12-26

Moat coverage

Shared moat types

Capex Knowhow ScaleData Network EffectsTwo Sided NetworkEcosystem Complements

CoStar Group, Inc. strengths

Data Workflow LockinDe Facto StandardIP Choke PointBrand TrustSuite Bundling

Meta Platforms, Inc. strengths

Direct Network EffectsLearning Curve Yield

Segment mix

CoStar Group, Inc. segments

Full profile >

CoStar (commercial real estate info & analytics)

Oligopoly

37.3%

Information Services (lease management software + international info)

Competitive

5%

Multifamily (Apartments.com Network)

Oligopoly

39%

LoopNet (commercial property marketing marketplace)

Oligopoly

10.3%

Residential (Homes.com + OnTheMarket)

Oligopoly

3.7%

Other Marketplaces (Ten-X, Land.com, BizBuySell, etc.)

Competitive

4.8%

Meta Platforms, Inc. segments

Full profile >

Family of Apps (FoA)

Oligopoly

98.7%

Reality Labs (RL)

Quasi-Monopoly

1.3%

Want the full wide moat stocks list?

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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.