VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Airbnb, Inc. vs CoStar Group, Inc.

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

Airbnb, Inc.

ABNB · NASDAQ

Market cap (USD)
SectorConsumer
CountryUS
Data as of2025-12-25
Moat score
69/ 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 Airbnb, Inc.'s moat claims, evidence, and risks.

View ABNB analysis

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

Comparison highlights

  • Moat score gap: CoStar Group, Inc. leads (75 / 100 vs 69 / 100 for Airbnb, Inc.).
  • Segment focus: Airbnb, Inc. has 1 segment (100% in Airbnb Marketplace); CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)).
  • Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Airbnb, Inc. has 4 moat types across 3 domains; CoStar Group, Inc. has 9 across 4.

Primary market context

Airbnb, Inc.

Airbnb Marketplace

Market

Online marketplace for short-term accommodations and experiences

Geography

Global

Customer

Hosts (supply) and guests (demand)

Role

Marketplace / platform operator

Revenue share

100%

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%

Side-by-side metrics

Airbnb, Inc.
CoStar Group, Inc.
Ticker / Exchange
ABNB - NASDAQ
CSGP - NASDAQ
Market cap (USD)
n/a
$28.6B
Sector
Consumer
Real Estate
HQ country
US
US
Primary segment
Airbnb Marketplace
Multifamily (Apartments.com Network)
Market structure
Competitive
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
69 / 100
75 / 100
Moat domains
Network, Demand, Financial
Supply, Network, Demand, Legal
Last update
2025-12-25
2025-12-29

Moat coverage

Shared moat types

Two Sided NetworkBrand Trust

Airbnb, Inc. strengths

Reputation ReviewsFloat Prepayment

CoStar Group, Inc. strengths

Capex Knowhow ScaleData Network EffectsData Workflow LockinDe Facto StandardIP Choke PointSuite BundlingEcosystem Complements

Segment mix

Airbnb, Inc. segments

Full profile >

Airbnb Marketplace

Competitive

100%

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%

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

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.