VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Wednesday, December 31, 2025
Stock Comparison
Amgen Inc. vs Intuitive Surgical, Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
Amgen Inc.
AMGN · Nasdaq Stock Market
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Intuitive Surgical, Inc.
ISRG · NASDAQ
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Full stock profile
Dive deeper into Intuitive Surgical, Inc.'s moat claims, evidence, and risks.
View ISRG analysisComparison highlights
- Moat score gap: Intuitive Surgical, Inc. leads (83 / 100 vs 70 / 100 for Amgen Inc.).
- Segment focus: Amgen Inc. has 3 segments (80.1% in Core Innovative Medicines); Intuitive Surgical, Inc. has 3 segments (60.8% in Instruments and Accessories).
- Primary market structure: Competitive vs Monopoly. Pricing power: Moderate vs Strong.
- Moat breadth: Amgen Inc. has 5 moat types across 3 domains; Intuitive Surgical, Inc. has 9 across 4.
Primary market context
Amgen Inc.
Core Innovative Medicines
Branded biopharmaceutical therapies for common diseases (bone health, inflammation, oncology, cardiovascular and other specialty areas)
Global
Payers, providers, and pharmacies
Drug developer/manufacturer
80.1%
Intuitive Surgical, Inc.
Instruments and Accessories
Proprietary robotic surgery instruments, accessories, and consumables used per procedure on the da Vinci (and Ion) installed base
Global
Hospitals and surgery centers purchasing consumables; surgeons and OR teams as end users
Consumables OEM within proprietary platform
60.8%
Side-by-side metrics
Moat coverage
Shared moat types
Amgen Inc. strengths
Intuitive Surgical, Inc. strengths
Segment mix
Amgen Inc. segments
Full profile >Core Innovative Medicines
Competitive
Rare Disease Portfolio (Horizon + others)
Quasi-Monopoly
Biosimilars
Oligopoly
Intuitive Surgical, Inc. segments
Full profile >Systems
Quasi-Monopoly
Instruments and Accessories
Monopoly
Services
Monopoly
Want the full wide moat stocks list?
Browse the full ranking of wide moat stocks, updated with moat scores and segment context.
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.