VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

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Friday, January 2, 2026

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Stock Comparison

Baidu, Inc. vs Martin Marietta Materials, Inc.

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

Martin Marietta Materials, Inc.

MLM · NYSE

Market cap (USD)$37.9B
Gross margin (TTM)—
Operating margin (TTM)—
Net margin (TTM)—
SectorMaterials
IndustryConstruction Materials
CountryUS
Data as of2026-01-01
Moat score
78/ 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 Martin Marietta Materials, Inc.'s moat claims, evidence, and risks.

View MLM analysis

Comparison highlights

  • Moat score gap: Martin Marietta Materials, Inc. leads (78 / 100 vs 71 / 100 for Baidu, Inc.).
  • Segment focus: Baidu, Inc. has 4 segments (54.5% in Online Marketing (Search & Feed Ads)); Martin Marietta Materials, Inc. has 3 segments (52.4% in East Group).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Baidu, Inc. has 10 moat types across 4 domains; Martin Marietta Materials, Inc. has 4 across 2.

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%

Martin Marietta Materials, Inc.

East Group

Market

Construction aggregates and asphalt products (crushed stone, sand & gravel; asphalt) in local/regional markets

Geography

United States (East/Southeast and adjacent regions)

Customer

Infrastructure agencies, construction contractors, and downstream materials producers (asphalt/ready-mix)

Role

Quarry/mining operator and building materials producer/distributor

Revenue share

52.4%

Side-by-side metrics

Baidu, Inc.
Martin Marietta Materials, Inc.
Ticker / Exchange
9888 - The Stock Exchange of Hong Kong Limited
MLM - NYSE
Market cap (USD)
$390.1B
$37.9B
Gross margin (TTM)
44.7%
n/a
Operating margin (TTM)
-2.6%
n/a
Net margin (TTM)
6.9%
n/a
Sector
Technology
Materials
Industry
Internet Content & Information
Construction Materials
HQ country
CN
US
Primary segment
Online Marketing (Search & Feed Ads)
East Group
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
78 / 100
Moat domains
Demand, Network, Supply, Legal
Supply, Financial
Last update
2025-12-28
2026-01-01

Moat coverage

Shared moat types

Capex Knowhow Scale

Baidu, Inc. strengths

Habit DefaultBrand TrustEcosystem ComplementsData Workflow LockinLearning Curve YieldRegulated Standards PipeContent Rights CurrencyScale Economies Unit CostData Network Effects

Martin Marietta Materials, Inc. strengths

Physical Network DensityGeographic NaturalBenchmark Pricing Power

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%

Martin Marietta Materials, Inc. segments

Full profile >

East Group

Oligopoly

52.4%

West Group

Oligopoly

40.9%

Specialties (formerly Magnesia Specialties)

Oligopoly

6.7%

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.