VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Tuesday, December 30, 2025

Stock Comparison

Bio-Rad Laboratories, Inc. vs Gilead Sciences, Inc.

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

Bio-Rad Laboratories, Inc.

BIO · New York Stock Exchange

Market cap (USD)
SectorHealthcare
CountryUS
Data as of2025-12-30
Moat score
61/ 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 Bio-Rad Laboratories, Inc.'s moat claims, evidence, and risks.

View BIO analysis

Gilead Sciences, Inc.

GILD · NASDAQ Global Select Market

Market cap (USD)$155.6B
SectorHealthcare
CountryUS
Data as of2025-12-30
Moat score
74/ 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 Gilead Sciences, Inc.'s moat claims, evidence, and risks.

View GILD analysis

Comparison highlights

  • Moat score gap: Gilead Sciences, Inc. leads (74 / 100 vs 61 / 100 for Bio-Rad Laboratories, Inc.).
  • Segment focus: Bio-Rad Laboratories, Inc. has 2 segments (59.9% in Clinical Diagnostics); Gilead Sciences, Inc. has 5 segments (68.5% in HIV).
  • Moat breadth: Bio-Rad Laboratories, Inc. has 6 moat types across 3 domains; Gilead Sciences, Inc. has 8 across 3.

Primary market context

Bio-Rad Laboratories, Inc.

Clinical Diagnostics

Market

In vitro diagnostics test systems, reagents/test kits, informatics, and clinical laboratory quality controls

Geography

Global

Customer

Hospital laboratories; diagnostic reference laboratories; transfusion laboratories; physician office laboratories

Role

IVD OEM / installed-base consumables supplier (systems + kits + controls)

Revenue share

59.9%

Gilead Sciences, Inc.

HIV

Market

HIV treatment and prevention medicines (antiretroviral therapy and PrEP)

Geography

Global (U.S. and Europe are major markets)

Customer

Patients/prescribers; reimbursed by public and private payers; distributed via wholesalers and specialty pharmacies

Role

Drug developer and marketing authorization holder

Revenue share

68.5%

Side-by-side metrics

Bio-Rad Laboratories, Inc.
Gilead Sciences, Inc.
Ticker / Exchange
BIO - New York Stock Exchange
GILD - NASDAQ Global Select Market
Market cap (USD)
n/a
$155.6B
Sector
Healthcare
Healthcare
HQ country
US
US
Primary segment
Clinical Diagnostics
HIV
Market structure
Oligopoly
Oligopoly
Market share
9%-11% (implied)
50%-60% (reported)
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
61 / 100
74 / 100
Moat domains
Supply, Demand, Legal
Demand, Legal, Supply
Last update
2025-12-30
2025-12-30

Moat coverage

Shared moat types

Capex Knowhow ScaleSwitching Costs GeneralCompliance Advantage

Bio-Rad Laboratories, Inc. strengths

Scope EconomiesDistribution ControlInstalled Base Consumables

Gilead Sciences, Inc. strengths

Habit DefaultIP Choke PointService Field NetworkRegulated Standards PipeBrand Trust

Segment mix

Bio-Rad Laboratories, Inc. segments

Full profile >

Life Science

Competitive

40.1%

Clinical Diagnostics

Oligopoly

59.9%

Gilead Sciences, Inc. segments

Full profile >

HIV

Oligopoly

68.5%

Oncology (Cell Therapy + Trodelvy)

Oligopoly

11.5%

Liver Disease

Oligopoly

10.6%

Veklury (Remdesivir)

Competitive

6.3%

Other Products

Competitive

3.1%

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.