VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Stock Comparison

DexCom, Inc. vs Novartis AG

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

DexCom, Inc.

DXCM · Nasdaq Global Select Market

Market cap (USD)$23.6B
Gross margin (TTM)60.1%
Operating margin (TTM)19.6%
Net margin (TTM)17.9%
SectorHealthcare
IndustryMedical - Devices
CountryUS
Data as of2026-04-24
Moat score
82/ 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 DexCom, Inc.'s moat claims, evidence, and risks.

View DXCM analysis

Novartis AG

NOVN · SIX Swiss Exchange

Market cap (USD)$278.2B
Gross margin (TTM)75.7%
Operating margin (TTM)31.2%
Net margin (TTM)24.9%
SectorHealthcare
IndustryDrug Manufacturers - General
CountryCH
Data as of2026-01-02
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 Novartis AG's moat claims, evidence, and risks.

View NOVN analysis

Comparison highlights

  • Moat score gap: DexCom, Inc. leads (82 / 100 vs 65 / 100 for Novartis AG).
  • Segment focus: DexCom, Inc. has 1 segment (100% in Continuous glucose monitoring systems); Novartis AG has 5 segments (29.3% in Oncology).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Strong.
  • Moat breadth: DexCom, Inc. has 5 moat types across 3 domains; Novartis AG has 4 across 3.

Primary market context

DexCom, Inc.

Continuous glucose monitoring systems

Market

Global continuous glucose monitoring systems and glucose biosensing devices

Geography

Global, with FY2025 revenue 71.5% United States and 28.5% international

Customer

People with diabetes, metabolic-health users, caregivers, clinicians, payors, distributors and pharmacy channels

Role

CGM device manufacturer, disposable sensor supplier, software/data platform and distribution partner

Revenue share

100%

Novartis AG

Oncology

Market

Oncology and hematology branded medicines (including targeted therapies and radioligand therapy)

Geography

Global

Customer

Oncologists and hospitals; reimbursed by payers; hospital and specialty pharmacy channels

Role

Originator developer, manufacturer, and marketer of oncology therapies

Revenue share

29.3%

Side-by-side metrics

DexCom, Inc.
Novartis AG
Ticker / Exchange
DXCM - Nasdaq Global Select Market
NOVN - SIX Swiss Exchange
Market cap (USD)
$23.6B
$278.2B
Gross margin (TTM)
60.1%
75.7%
Operating margin (TTM)
19.6%
31.2%
Net margin (TTM)
17.9%
24.9%
Sector
Healthcare
Healthcare
Industry
Medical - Devices
Drug Manufacturers - General
HQ country
US
CH
Primary segment
Continuous glucose monitoring systems
Oncology
Market structure
Oligopoly
Oligopoly
Market share
35.1% (estimated)
n/a
HHI estimate
4,452
n/a
Pricing power
Moderate
Strong
Moat score
82 / 100
65 / 100
Moat domains
Demand, Network, Legal
Legal, Supply, Demand
Last update
2026-04-24
2026-01-02

Moat coverage

Shared moat types

Regulated Standards PipeBrand Trust

DexCom, Inc. strengths

Installed Base ConsumablesEcosystem ComplementsData Workflow Lockin

Novartis AG strengths

IP Choke PointCapex Knowhow Scale

Segment mix

DexCom, Inc. segments

Full profile >

Continuous glucose monitoring systems

Oligopoly

100%

Novartis AG segments

Full profile >

Cardiovascular, Renal and Metabolic

Oligopoly

17%

Immunology

Oligopoly

18.5%

Neuroscience

Oligopoly

9.4%

Oncology

Oligopoly

29.3%

Established Brands

Competitive

25.8%

Want the full wide moat stocks list?

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Proven models entering the expansion stage with unit economics that work.

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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.