VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Baidu, Inc. vs Paychex, 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)$395.8B
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

Paychex, Inc.

PAYX · NASDAQ Global Select Market

Market cap (USD)$39.4B
Gross margin (TTM)73.4%
Operating margin (TTM)37.1%
Net margin (TTM)26.5%
SectorIndustrials
IndustryStaffing & Employment Services
CountryUS
Data as of2026-01-04
Moat score
66/ 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 Paychex, Inc.'s moat claims, evidence, and risks.

View PAYX analysis

Comparison highlights

  • Moat score gap: Baidu, Inc. leads (71 / 100 vs 66 / 100 for Paychex, Inc.).
  • Segment focus: Baidu, Inc. has 4 segments (54.5% in Online Marketing (Search & Feed Ads)); Paychex, Inc. has 3 segments (73% in Management Solutions).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Moderate vs Moderate.
  • Moat breadth: Baidu, Inc. has 10 moat types across 4 domains; Paychex, Inc. has 7 across 4.

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%

Paychex, Inc.

Management Solutions

Market

Payroll processing and integrated HCM solutions for SMB and mid-market employers

Geography

United States (primarily)

Customer

Employers (SMB and mid-market)

Role

HCM SaaS + outsourced payroll/HR service provider

Revenue share

73%

Side-by-side metrics

Baidu, Inc.
Paychex, Inc.
Ticker / Exchange
9888 - The Stock Exchange of Hong Kong Limited
PAYX - NASDAQ Global Select Market
Market cap (USD)
$395.8B
$39.4B
Gross margin (TTM)
44.7%
73.4%
Operating margin (TTM)
-2.6%
37.1%
Net margin (TTM)
6.9%
26.5%
Sector
Technology
Industrials
Industry
Internet Content & Information
Staffing & Employment Services
HQ country
CN
US
Primary segment
Online Marketing (Search & Feed Ads)
Management Solutions
Market structure
Quasi-Monopoly
Oligopoly
Market share
62%-66% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
71 / 100
66 / 100
Moat domains
Demand, Network, Supply, Legal
Demand, Supply, Legal, Financial
Last update
2025-12-28
2026-01-04

Moat coverage

Shared moat types

Data Workflow Lockin

Baidu, Inc. strengths

Habit DefaultBrand TrustEcosystem ComplementsCapex Knowhow ScaleLearning Curve YieldRegulated Standards PipeContent Rights CurrencyScale Economies Unit CostData Network Effects

Paychex, Inc. strengths

Suite BundlingService Field NetworkCompliance AdvantageUnderwriting Risk PoolingSwitching Costs GeneralFloat Prepayment

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%

Paychex, Inc. segments

Full profile >

Management Solutions

Oligopoly

73%

PEO and Insurance Solutions

Competitive

24.1%

Client funds float (interest on funds held for clients)

Oligopoly

2.9%

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

Looking for expansion-stage stocks?

Proven models entering the expansion stage with unit economics that work.

View expansion-stage stocks

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.