VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, January 7, 2026
Stock Comparison
Merck & Co., Inc. vs ResMed Inc.
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 analysisResMed Inc.
RMD · New York Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Comparison highlights
- Moat score gap: ResMed Inc. leads (76 / 100 vs 71 / 100 for Merck & Co., Inc.).
- Segment focus: Merck & Co., Inc. has 2 segments (89.5% in Pharmaceutical); ResMed Inc. has 2 segments (87.5% in Sleep and Breathing Health).
- Primary market structure: Competitive vs Oligopoly. Pricing power: Moderate vs Moderate.
- Moat breadth: Merck & Co., Inc. has 5 moat types across 3 domains; ResMed Inc. has 7 across 2.
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%
ResMed Inc.
Sleep and Breathing Health
Sleep apnea and respiratory care devices and related consumables (PAP, masks, ventilation) plus connected monitoring services
Global
DME/HME providers, sleep clinics, hospitals, patients
Medical device OEM + connected care software/data services
87.5%
Side-by-side metrics
Moat coverage
Shared moat types
Merck & Co., Inc. strengths
ResMed Inc. strengths
Segment mix
Merck & Co., Inc. segments
Full profile >Pharmaceutical
Competitive
Animal Health
Oligopoly
ResMed Inc. segments
Full profile >Sleep and Breathing Health
Oligopoly
Residential Care Software
Competitive
Want the full wide moat stocks list?
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View expansion-stage stocksCuration & 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.