VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Thursday, January 1, 2026

Stock Comparison

Amgen Inc. vs W.W. Grainger, Inc.

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

Amgen Inc.

AMGN · Nasdaq Stock Market

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-22
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 Amgen Inc.'s moat claims, evidence, and risks.

View AMGN analysis

W.W. Grainger, Inc.

GWW · New York Stock Exchange

Market cap (USD)
SectorIndustrials
CountryUS
Data as of2026-01-01
Moat score
65/ 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 W.W. Grainger, Inc.'s moat claims, evidence, and risks.

View GWW analysis

Comparison highlights

  • Moat score gap: Amgen Inc. leads (70 / 100 vs 65 / 100 for W.W. Grainger, Inc.).
  • Segment focus: Amgen Inc. has 3 segments (80.1% in Core Innovative Medicines); W.W. Grainger, Inc. has 3 segments (79.9% in High-Touch Solutions N.A.).
  • Moat breadth: Amgen Inc. has 5 moat types across 3 domains; W.W. Grainger, Inc. has 5 across 2.

Primary market context

Amgen Inc.

Core Innovative Medicines

Market

Branded biopharmaceutical therapies for common diseases (bone health, inflammation, oncology, cardiovascular and other specialty areas)

Geography

Global

Customer

Payers, providers, and pharmacies

Role

Drug developer/manufacturer

Revenue share

80.1%

W.W. Grainger, Inc.

High-Touch Solutions N.A.

Market

MRO (maintenance, repair and operations) products distribution and value-added inventory/procurement solutions

Geography

North America (U.S., Canada, Mexico, Puerto Rico)

Customer

Mid-size and large businesses with complex purchasing operations; also government and institutions

Role

Distributor / wholesaler + onsite inventory services

Revenue share

79.9%

Side-by-side metrics

Amgen Inc.
W.W. Grainger, Inc.
Ticker / Exchange
AMGN - Nasdaq Stock Market
GWW - New York Stock Exchange
Market cap (USD)
n/a
n/a
Sector
Healthcare
Industrials
HQ country
US
US
Primary segment
Core Innovative Medicines
High-Touch Solutions N.A.
Market structure
Competitive
Competitive
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
70 / 100
65 / 100
Moat domains
Legal, Supply, Demand
Supply, Demand
Last update
2025-12-22
2026-01-01

Moat coverage

Shared moat types

No overlap yet.

Amgen Inc. strengths

IP Choke PointRegulated Standards PipeCapex Knowhow ScaleBrand TrustLearning Curve Yield

W.W. Grainger, Inc. strengths

Service Field NetworkData Workflow LockinScale Economies Unit CostScope EconomiesOperational Excellence

Segment mix

Amgen Inc. segments

Full profile >

Core Innovative Medicines

Competitive

80.1%

Rare Disease Portfolio (Horizon + others)

Quasi-Monopoly

13.3%

Biosimilars

Oligopoly

6.6%

W.W. Grainger, Inc. segments

Full profile >

High-Touch Solutions N.A.

Competitive

79.9%

Endless Assortment

Competitive

18.3%

Other (Cromwell U.K. + captive insurance)

Competitive

1.8%

Want the full wide moat stocks list?

Browse the full ranking of wide moat stocks, updated with moat scores and segment context.

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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.