VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Canadian Pacific Kansas City Limited vs Merck & Co., Inc.

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

Canadian Pacific Kansas City Limited

CP · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryCA
Data as of2025-12-30
Moat score
70/ 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 Canadian Pacific Kansas City Limited's moat claims, evidence, and risks.

View CP analysis

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

Comparison highlights

  • Moat score gap: Merck & Co., Inc. leads (71 / 100 vs 70 / 100 for Canadian Pacific Kansas City Limited).
  • Segment focus: Canadian Pacific Kansas City Limited has 4 segments (46% in Merchandise Freight); Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical).
  • Primary market structure: Oligopoly vs Competitive. Pricing power: Moderate vs Moderate.
  • Moat breadth: Canadian Pacific Kansas City Limited has 4 moat types across 2 domains; Merck & Co., Inc. has 5 across 3.

Primary market context

Canadian Pacific Kansas City Limited

Merchandise Freight

Market

North American carload rail freight (industrial and consumer commodities)

Geography

Canada, United States, Mexico

Customer

Industrial shippers and manufacturers across multiple commodity groups

Role

Rail carrier + logistics/transload provider

Revenue share

46%

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%

Side-by-side metrics

Canadian Pacific Kansas City Limited
Merck & Co., Inc.
Ticker / Exchange
CP - New York Stock Exchange
MRK - New York Stock Exchange
Market cap (USD)
n/a
$250.9B
Sector
Industrials
Healthcare
HQ country
CA
US
Primary segment
Merchandise Freight
Pharmaceutical
Market structure
Oligopoly
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
71 / 100
Moat domains
Legal, Supply
Legal, Supply, Demand
Last update
2025-12-30
2025-12-22

Moat coverage

Shared moat types

No overlap yet.

Canadian Pacific Kansas City Limited strengths

Permits Rights Of WayPhysical Network DensityOperational ExcellenceDistribution Control

Merck & Co., Inc. strengths

IP Choke PointRegulated Standards PipeCapex Knowhow ScaleScope EconomiesData Workflow Lockin

Segment mix

Canadian Pacific Kansas City Limited segments

Full profile >

Bulk Freight

Oligopoly

34.2%

Merchandise Freight

Oligopoly

46%

Intermodal Freight

Competitive

17.6%

Non-freight and Other

Competitive

2.2%

Merck & Co., Inc. segments

Full profile >

Pharmaceutical

Competitive

89.5%

Animal Health

Oligopoly

9.2%

Want the full wide moat stocks list?

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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.