VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Friday, January 2, 2026
Stock Comparison
Merck & Co., Inc. vs TC Energy 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
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 analysisTC Energy Corporation
TRP · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into TC Energy Corporation's moat claims, evidence, and risks.
View TRP analysisComparison highlights
- Moat score gap: TC Energy Corporation leads (80 / 100 vs 71 / 100 for Merck & Co., Inc.).
- Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); TC Energy Corporation has 4 segments (46.1% in U.S. Natural Gas Pipelines).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Weak.
- Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; TC Energy Corporation has 4 across 3.
Primary market context
Merck & Co., Inc.
Pharmaceutical
Branded prescription pharmaceuticals & human vaccines
Global
Wholesalers/retailers, managed care and government payers, hospitals/clinics
R&D-intensive innovator, manufacturer, and marketer
89.5%
TC Energy Corporation
U.S. Natural Gas Pipelines
U.S. interstate natural gas pipeline transportation (FERC-regulated)
United States
Utilities/LDCs, power generators, LNG/export facilities, industrial users and marketers (as shippers)
Midstream pipeline operator
46.1%
Side-by-side metrics
Moat coverage
Shared moat types
Merck & Co., Inc. strengths
TC Energy Corporation strengths
Segment mix
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
TC Energy Corporation segments
Full profile >Canadian Natural Gas Pipelines
Quasi-Monopoly
U.S. Natural Gas Pipelines
Oligopoly
Mexico Natural Gas Pipelines
Oligopoly
Power and Energy Solutions
Competitive
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View the moat stocks listCuration & 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.