VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Baidu, Inc. vs AstraZeneca PLC

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

Baidu, Inc.

9888 · The Stock Exchange of Hong Kong Limited

Market cap (USD)$390.1B
Gross margin (TTM)44.7%
Operating margin (TTM)-2.6%
Net margin (TTM)6.9%
SectorTechnology
IndustryInternet Content & Information
CountryCN
Data as of2025-12-28
Moat score
71/ 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 Baidu, Inc.'s moat claims, evidence, and risks.

View 9888 analysis

AstraZeneca PLC

AZN · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorHealthcare
Industry
CountryGB
Data as of2026-01-02
Moat score
71/ 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 AstraZeneca PLC's moat claims, evidence, and risks.

View AZN analysis

Comparison highlights

  • Moat score: both at 71 / 100.
  • Segment focus: Baidu, Inc. has 4 segments (54.5% in Online Marketing (Search & Feed Ads)); AstraZeneca PLC has 6 segments (41% in Oncology).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Baidu, Inc. has 10 moat types across 4 domains; AstraZeneca PLC has 4 across 3.

Primary market context

Baidu, Inc.

Online Marketing (Search & Feed Ads)

Market

Chinese-language search and feed-based online marketing services

Geography

Mainland China

Customer

Advertisers (SMEs and larger enterprises) buying performance-based and feed ads

Role

Search + feed platform operator / ad marketplace

Revenue share

54.5%

AstraZeneca PLC

Oncology

Market

Innovator oncology therapeutics (branded prescription medicines)

Geography

Global

Customer

Hospitals, oncology clinics, payers

Role

Innovator biopharmaceutical company

Revenue share

41%

Side-by-side metrics

Baidu, Inc.
AstraZeneca PLC
Ticker / Exchange
9888 - The Stock Exchange of Hong Kong Limited
AZN - London Stock Exchange
Market cap (USD)
$390.1B
n/a
Gross margin (TTM)
44.7%
n/a
Operating margin (TTM)
-2.6%
n/a
Net margin (TTM)
6.9%
n/a
Sector
Technology
Healthcare
Industry
Internet Content & Information
n/a
HQ country
CN
GB
Primary segment
Online Marketing (Search & Feed Ads)
Oncology
Market structure
Quasi-Monopoly
Oligopoly
Market share
62%-66% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
71 / 100
71 / 100
Moat domains
Demand, Network, Supply, Legal
Legal, Supply, Demand
Last update
2025-12-28
2026-01-02

Moat coverage

Shared moat types

Brand TrustCapex Knowhow ScaleRegulated Standards Pipe

Baidu, Inc. strengths

Habit DefaultEcosystem ComplementsData Workflow LockinLearning Curve YieldContent Rights CurrencyScale Economies Unit CostData Network Effects

AstraZeneca PLC strengths

IP Choke Point

Segment mix

Baidu, Inc. segments

Full profile >

Online Marketing (Search & Feed Ads)

Quasi-Monopoly

54.5%

AI Cloud (IaaS/PaaS/SaaS + GenAI APIs)

Oligopoly

16.3%

Intelligent Driving & Other Growth Initiatives

Oligopoly

7.4%

iQIYI (Online Entertainment)

Oligopoly

21.8%

AstraZeneca PLC segments

Full profile >

Oncology

Oligopoly

41%

Cardiovascular, Renal and Metabolism (CVRM)

Competitive

23%

Respiratory & Immunology (R&I)

Oligopoly

15%

Vaccines & Immune Therapies (V&I)

Oligopoly

3%

Rare Disease

Oligopoly

16%

Other Medicines

Competitive

2%

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.