VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 8, 2026

Stock Comparison

Paychex, Inc. vs Zoetis Inc.

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

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

Zoetis Inc.

ZTS · New York Stock Exchange

Market cap (USD)$57B
Gross margin (TTM)70.6%
Operating margin (TTM)37.6%
Net margin (TTM)28.2%
SectorHealthcare
IndustryDrug Manufacturers - Specialty & Generic
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: Zoetis Inc. leads (73 / 100 vs 66 / 100 for Paychex, Inc.).
  • Segment focus: Paychex, Inc. has 3 segments (73% in Management Solutions); Zoetis Inc. has 3 segments (67.8% in Companion Animal Products).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Paychex, Inc. has 7 moat types across 4 domains; Zoetis Inc. has 9 across 3.

Primary market context

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%

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

Paychex, Inc.
Zoetis Inc.
Ticker / Exchange
PAYX - NASDAQ Global Select Market
ZTS - New York Stock Exchange
Market cap (USD)
$39.4B
$57B
Gross margin (TTM)
73.4%
70.6%
Operating margin (TTM)
37.1%
37.6%
Net margin (TTM)
26.5%
28.2%
Sector
Industrials
Healthcare
Industry
Staffing & Employment Services
Drug Manufacturers - Specialty & Generic
HQ country
US
US
Primary segment
Management Solutions
Companion Animal Products
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
66 / 100
73 / 100
Moat domains
Demand, Supply, Legal, Financial
Demand, Supply, Legal
Last update
2026-01-04
2025-12-26

Moat coverage

Shared moat types

Service Field NetworkCompliance Advantage

Paychex, Inc. strengths

Data Workflow LockinSuite BundlingUnderwriting Risk PoolingSwitching Costs GeneralFloat Prepayment

Zoetis Inc. strengths

Brand TrustRegulated Standards PipeIP Choke PointInstalled Base ConsumablesCapacity MoatDistribution ControlOperational Excellence

Segment mix

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%

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?

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

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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.