VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Auto Trader Group plc vs Ecolab Inc.

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

Auto Trader Group plc

AUTO · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorCommunication Services
Industry
CountryGB
Data as of2026-01-10
Moat score
96/ 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 Auto Trader Group plc's moat claims, evidence, and risks.

View AUTO analysis

Ecolab Inc.

ECL · New York Stock Exchange

Market cap (USD)$77B
Gross margin (TTM)44.3%
Operating margin (TTM)17.3%
Net margin (TTM)12.5%
SectorMaterials
IndustryChemicals - Specialty
CountryUS
Data as of2026-01-01
Moat score
63/ 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 Ecolab Inc.'s moat claims, evidence, and risks.

View ECL analysis

Comparison highlights

  • Moat score gap: Auto Trader Group plc leads (96 / 100 vs 63 / 100 for Ecolab Inc.).
  • Segment focus: Auto Trader Group plc has 2 segments (93.3% in Autotrader (UK automotive marketplace & data platform)); Ecolab Inc. has 4 segments (49.5% in Global Industrial).
  • Primary market structure: Quasi-Monopoly vs Oligopoly. Pricing power: Strong vs Moderate.
  • Moat breadth: Auto Trader Group plc has 4 moat types across 2 domains; Ecolab Inc. has 7 across 3.

Primary market context

Auto Trader Group plc

Autotrader (UK automotive marketplace & data platform)

Market

UK digital automotive marketplace (new & used) with retailer advertising/data products

Geography

United Kingdom

Customer

Consumers, vehicle retailers, OEMs/advertising agencies

Role

Two-sided marketplace + advertising/data & workflow tools

Revenue share

93.3%

Ecolab Inc.

Global Industrial

Market

Industrial water treatment & process chemistry (incl. food & beverage processing and pulp & paper process aids)

Geography

Global

Customer

B2B

Role

formulator + on-site service/optimization provider

Revenue share

49.5%

Side-by-side metrics

Auto Trader Group plc
Ecolab Inc.
Ticker / Exchange
AUTO - London Stock Exchange
ECL - New York Stock Exchange
Market cap (USD)
n/a
$77B
Gross margin (TTM)
n/a
44.3%
Operating margin (TTM)
n/a
17.3%
Net margin (TTM)
n/a
12.5%
Sector
Communication Services
Materials
Industry
n/a
Chemicals - Specialty
HQ country
GB
US
Primary segment
Autotrader (UK automotive marketplace & data platform)
Global Industrial
Market structure
Quasi-Monopoly
Oligopoly
Market share
75%-80% (reported)
n/a
HHI estimate
n/a
n/a
Pricing power
Strong
Moderate
Moat score
96 / 100
63 / 100
Moat domains
Network, Demand
Supply, Demand, Legal
Last update
2026-01-10
2026-01-01

Moat coverage

Shared moat types

Data Workflow Lockin

Auto Trader Group plc strengths

Two Sided NetworkHabit DefaultEcosystem Complements

Ecolab Inc. strengths

Service Field NetworkCompliance AdvantageInstalled Base ConsumablesLong Term ContractsTraining Org Change CostsBrand Trust

Segment mix

Auto Trader Group plc segments

Full profile >

Autotrader (UK automotive marketplace & data platform)

Quasi-Monopoly

93.3%

Autorama (vehicle leasing marketplace)

Competitive

6.7%

Ecolab Inc. segments

Full profile >

Global Industrial

Oligopoly

49.5%

Global Institutional & Specialty

Oligopoly

34.1%

Global Healthcare & Life Sciences

Oligopoly

9%

Global Pest Elimination

Oligopoly

7.4%

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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Looking for expansion-stage stocks?

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.