VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Merck & Co., Inc. vs Thomson Reuters Corporation

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

Merck & Co., Inc.

MRK · New York Stock Exchange

Market cap (USD)$250.9B
SectorHealthcare
CountryUS
Data as of2025-12-22
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 Merck & Co., Inc.'s moat claims, evidence, and risks.

View MRK analysis

Thomson Reuters Corporation

TRI · Toronto Stock Exchange

Market cap (USD)
SectorIndustrials
CountryCA
Data as of2025-12-30
Moat score
84/ 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 Thomson Reuters Corporation's moat claims, evidence, and risks.

View TRI analysis

Comparison highlights

  • Moat score gap: Thomson Reuters Corporation leads (84 / 100 vs 71 / 100 for Merck & Co., Inc.).
  • Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); Thomson Reuters Corporation has 5 segments (40.1% in Legal Professionals).
  • Primary market structure: Competitive vs Duopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; Thomson Reuters Corporation has 4 across 3.

Primary market context

Merck & Co., Inc.

Pharmaceutical

Market

Branded prescription pharmaceuticals & human vaccines

Geography

Global

Customer

Wholesalers/retailers, managed care and government payers, hospitals/clinics

Role

R&D-intensive innovator, manufacturer, and marketer

Revenue share

89.5%

Thomson Reuters Corporation

Legal Professionals

Market

Legal research and legal workflow software

Geography

Global

Customer

Law firms, corporate legal departments, and governments

Role

Subscription software + proprietary legal content

Revenue share

40.1%

Side-by-side metrics

Merck & Co., Inc.
Thomson Reuters Corporation
Ticker / Exchange
MRK - New York Stock Exchange
TRI - Toronto Stock Exchange
Market cap (USD)
$250.9B
n/a
Sector
Healthcare
Industrials
HQ country
US
CA
Primary segment
Pharmaceutical
Legal Professionals
Market structure
Competitive
Duopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Strong
Moat score
71 / 100
84 / 100
Moat domains
Legal, Supply, Demand
Demand, Legal, Supply
Last update
2025-12-22
2025-12-30

Moat coverage

Shared moat types

Regulated Standards PipeData Workflow Lockin

Merck & Co., Inc. strengths

IP Choke PointCapex Knowhow ScaleScope Economies

Thomson Reuters Corporation strengths

Brand TrustScale Economies Unit Cost

Segment mix

Merck & Co., Inc. segments

Full profile >

Pharmaceutical

Competitive

89.5%

Animal Health

Oligopoly

9.2%

Thomson Reuters Corporation segments

Full profile >

Legal Professionals

Duopoly

40.1%

Corporates

Oligopoly

25.3%

Tax & Accounting Professionals

Oligopoly

16%

Reuters News

Oligopoly

11.4%

Global Print

Competitive

7.1%

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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.