VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Wednesday, December 31, 2025

Stock Comparison

Thermo Fisher Scientific Inc. vs Walmart Inc.

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

Thermo Fisher Scientific Inc.

TMO · New York Stock Exchange

Market cap (USD)$213.3B
SectorHealthcare
CountryUS
Data as of2025-12-22
Moat score
64/ 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 Thermo Fisher Scientific Inc.'s moat claims, evidence, and risks.

View TMO analysis

Walmart Inc.

WMT · New York Stock Exchange

Market cap (USD)$894.3B
SectorConsumer
CountryUS
Data as of2025-12-30
Moat score
77/ 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 Walmart Inc.'s moat claims, evidence, and risks.

View WMT analysis

Comparison highlights

  • Moat score gap: Walmart Inc. leads (77 / 100 vs 64 / 100 for Thermo Fisher Scientific Inc.).
  • Segment focus: Thermo Fisher Scientific Inc. has 4 segments (53.6% in Laboratory Products and Biopharma Services); Walmart Inc. has 3 segments (68.3% in Walmart U.S.).
  • Primary market structure: Competitive vs Competitive. Pricing power: Moderate vs Weak.
  • Moat breadth: Thermo Fisher Scientific Inc. has 8 moat types across 3 domains; Walmart Inc. has 6 across 4.

Primary market context

Thermo Fisher Scientific Inc.

Laboratory Products and Biopharma Services

Market

Laboratory supplies distribution/market channel plus outsourced biopharma services (CDMO/CRO)

Geography

Global

Customer

Pharma & biotech; academic/government labs; industrial and clinical laboratories

Role

Distributor/market channel and outsourced services provider

Revenue share

53.6%

Walmart Inc.

Walmart U.S.

Market

U.S. omnichannel discount retail and grocery (supercenters, neighborhood markets, eCommerce)

Geography

United States

Customer

Consumers and small businesses; marketplace sellers and advertisers (for marketplace and retail media offerings)

Role

Retailer / marketplace operator / last-mile fulfillment network

Revenue share

68.3%

Side-by-side metrics

Thermo Fisher Scientific Inc.
Walmart Inc.
Ticker / Exchange
TMO - New York Stock Exchange
WMT - New York Stock Exchange
Market cap (USD)
$213.3B
$894.3B
Sector
Healthcare
Consumer
HQ country
US
US
Primary segment
Laboratory Products and Biopharma Services
Walmart U.S.
Market structure
Competitive
Competitive
Market share
n/a
20%-22% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
64 / 100
77 / 100
Moat domains
Demand, Supply, Legal
Supply, Demand, Network, Financial
Last update
2025-12-22
2025-12-30

Moat coverage

Shared moat types

No overlap yet.

Thermo Fisher Scientific Inc. strengths

Installed Base ConsumablesFormat Lock InBrand TrustService Field NetworkRegulated Standards PipeDistribution ControlProcurement InertiaCapacity Moat

Walmart Inc. strengths

Scale Economies Unit CostPhysical Network DensityHabit DefaultSupply Chain ControlEcosystem ComplementsFloat Prepayment

Segment mix

Thermo Fisher Scientific Inc. segments

Full profile >

Life Sciences Solutions

Oligopoly

19%

Analytical Instruments

Oligopoly

17%

Specialty Diagnostics

Oligopoly

10.4%

Laboratory Products and Biopharma Services

Competitive

53.6%

Walmart Inc. segments

Full profile >

Walmart U.S.

Competitive

68.3%

Walmart International

Competitive

18.1%

Sam's Club U.S.

Oligopoly

13.6%

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 list

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.