VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Thursday, January 1, 2026
Stock Comparison
W.W. Grainger, Inc. vs Thermo Fisher Scientific Inc.
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
W.W. Grainger, Inc.
GWW · 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 W.W. Grainger, Inc.'s moat claims, evidence, and risks.
View GWW analysisThermo Fisher Scientific Inc.
TMO · 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 Thermo Fisher Scientific Inc.'s moat claims, evidence, and risks.
View TMO analysisComparison highlights
- Moat score gap: W.W. Grainger, Inc. leads (65 / 100 vs 64 / 100 for Thermo Fisher Scientific Inc.).
- Segment focus: W.W. Grainger, Inc. has 3 segments (79.9% in High-Touch Solutions N.A.); Thermo Fisher Scientific Inc. has 4 segments (53.6% in Laboratory Products and Biopharma Services).
- Moat breadth: W.W. Grainger, Inc. has 5 moat types across 2 domains; Thermo Fisher Scientific Inc. has 8 across 3.
Primary market context
W.W. Grainger, Inc.
High-Touch Solutions N.A.
MRO (maintenance, repair and operations) products distribution and value-added inventory/procurement solutions
North America (U.S., Canada, Mexico, Puerto Rico)
Mid-size and large businesses with complex purchasing operations; also government and institutions
Distributor / wholesaler + onsite inventory services
79.9%
Thermo Fisher Scientific Inc.
Laboratory Products and Biopharma Services
Laboratory supplies distribution/market channel plus outsourced biopharma services (CDMO/CRO)
Global
Pharma & biotech; academic/government labs; industrial and clinical laboratories
Distributor/market channel and outsourced services provider
53.6%
Side-by-side metrics
Moat coverage
Shared moat types
W.W. Grainger, Inc. strengths
Thermo Fisher Scientific Inc. strengths
Segment mix
W.W. Grainger, Inc. segments
Full profile >High-Touch Solutions N.A.
Competitive
Endless Assortment
Competitive
Other (Cromwell U.K. + captive insurance)
Competitive
Thermo Fisher Scientific Inc. segments
Full profile >Life Sciences Solutions
Oligopoly
Analytical Instruments
Oligopoly
Specialty Diagnostics
Oligopoly
Laboratory Products and Biopharma Services
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.