VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

CoStar Group, Inc. vs Siemens Healthineers AG

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

Siemens Healthineers AG

SHL · XETRA

Market cap (USD)
SectorHealthcare
CountryDE
Data as of2025-12-28
Moat score
68/ 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 Siemens Healthineers AG's moat claims, evidence, and risks.

View SHL analysis

Comparison highlights

  • Moat score gap: CoStar Group, Inc. leads (75 / 100 vs 68 / 100 for Siemens Healthineers AG).
  • Segment focus: CoStar Group, Inc. has 6 segments (39% in Multifamily (Apartments.com Network)); Siemens Healthineers AG has 4 segments (54.6% in Imaging).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: CoStar Group, Inc. has 9 moat types across 4 domains; Siemens Healthineers AG has 8 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%

Siemens Healthineers AG

Imaging

Market

Diagnostic medical imaging equipment and related software/services (MRI, CT, X-ray, molecular imaging, ultrasound)

Geography

Global

Customer

Hospitals, imaging centers, clinics, and integrated delivery networks

Role

OEM + digital platform and service provider

Revenue share

54.6%

Side-by-side metrics

CoStar Group, Inc.
Siemens Healthineers AG
Ticker / Exchange
CSGP - NASDAQ
SHL - XETRA
Market cap (USD)
$28.6B
n/a
Sector
Real Estate
Healthcare
HQ country
US
DE
Primary segment
Multifamily (Apartments.com Network)
Imaging
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
75 / 100
68 / 100
Moat domains
Supply, Network, Demand, Legal
Supply, Demand, Network
Last update
2025-12-29
2025-12-28

Moat coverage

Shared moat types

Capex Knowhow ScaleData Workflow LockinEcosystem Complements

CoStar Group, Inc. strengths

Data Network EffectsDe Facto StandardIP Choke PointTwo Sided NetworkBrand TrustSuite Bundling

Siemens Healthineers AG strengths

Service Field NetworkLong Term ContractsInstalled Base ConsumablesDesign In QualificationSwitching Costs General

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%

Siemens Healthineers AG segments

Full profile >

Imaging

Oligopoly

54.6%

Diagnostics

Oligopoly

18.7%

Varian

Oligopoly

17.6%

Advanced Therapies

Oligopoly

9.1%

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.