VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

CoStar Group, Inc. vs Zoetis 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

Zoetis Inc.

ZTS · New York Stock Exchange

Market cap (USD)$55.3B
SectorHealthcare
CountryUS
Data as of2025-12-26
Moat score
73/ 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 Zoetis Inc.'s moat claims, evidence, and risks.

View ZTS analysis

Comparison highlights

  • Moat score gap: CoStar Group, Inc. leads (75 / 100 vs 73 / 100 for Zoetis Inc.).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); Zoetis Inc. has 3 segments (67.8% in Companion Animal Products).
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; Zoetis Inc. has 9 across 3.

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%

Zoetis Inc.

Companion Animal Products

Market

Companion animal veterinary medicines, vaccines and diagnostics

Geography

Global

Customer

Veterinarians, veterinary clinics, pet owners (via prescription/retail)

Role

Manufacturer and marketer

Revenue share

67.8%

Side-by-side metrics

CoStar Group, Inc.
Zoetis Inc.
Ticker / Exchange
CSGP - NASDAQ
ZTS - New York Stock Exchange
Market cap (USD)
$28.6B
$55.3B
Sector
Real Estate
Healthcare
HQ country
US
US
Primary segment
Multifamily (Apartments.com Network)
Companion Animal Products
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Strong
Moat score
75 / 100
73 / 100
Moat domains
Supply, Network, Demand, Legal
Demand, Supply, Legal
Last update
2025-12-29
2025-12-26

Moat coverage

Shared moat types

IP Choke PointBrand Trust

CoStar Group, Inc. strengths

Capex Knowhow ScaleData Network EffectsData Workflow LockinDe Facto StandardTwo Sided NetworkSuite BundlingEcosystem Complements

Zoetis Inc. strengths

Service Field NetworkRegulated Standards PipeInstalled Base ConsumablesCapacity MoatDistribution ControlCompliance AdvantageOperational Excellence

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%

Zoetis Inc. segments

Full profile >

Companion Animal Products

Oligopoly

67.8%

Livestock Products

Oligopoly

31.3%

Client Supply Services & Human Health

Competitive

0.9%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.