VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

Fiserv, Inc. vs UnitedHealth Group Incorporated

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

Fiserv, Inc.

FISV · NASDAQ

Market cap (USD)$37.7B
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorFinancials
Industry
CountryUS
Data as of2026-01-10
Moat score
67/ 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 Fiserv, Inc.'s moat claims, evidence, and risks.

View FISV analysis

UnitedHealth Group Incorporated

UNH · New York Stock Exchange

Market cap (USD)$311.6B
Gross margin (TTM)19.7%
Operating margin (TTM)6.1%
Net margin (TTM)4%
SectorHealthcare
IndustryMedical - Healthcare Plans
CountryUS
Data as of2025-12-31
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 UnitedHealth Group Incorporated's moat claims, evidence, and risks.

View UNH analysis

Comparison highlights

  • Moat score gap: Fiserv, Inc. leads (67 / 100 vs 64 / 100 for UnitedHealth Group Incorporated).
  • Segment focus: Fiserv, Inc. has 2 segments (50.4% in Merchant); UnitedHealth Group Incorporated has 4 segments (74.9% in UnitedHealthcare).
  • Primary market structure: Oligopoly vs Oligopoly. Pricing power: Moderate vs Weak.
  • Moat breadth: Fiserv, Inc. has 6 moat types across 3 domains; UnitedHealth Group Incorporated has 5 across 2.

Primary market context

Fiserv, Inc.

Merchant

Market

Merchant acquiring and commerce enablement (SMB + enterprise omnichannel payments, POS, gateway/orchestration, and related software)

Geography

Global

Customer

Merchants (SMB and enterprise), plus channel partners (ISVs/ISOs/financial institutions) that serve or refer merchants

Role

Merchant acquirer / payment processor / commerce and POS platform provider

Revenue share

50.4%

UnitedHealth Group Incorporated

UnitedHealthcare

Market

U.S. health benefits / managed care (commercial, Medicare Advantage, Medicaid managed care)

Geography

United States (primarily)

Customer

Employers, individuals, and government-sponsored programs

Role

Health insurer / managed care organization

Revenue share

74.9%

Side-by-side metrics

Fiserv, Inc.
UnitedHealth Group Incorporated
Ticker / Exchange
FISV - NASDAQ
UNH - New York Stock Exchange
Market cap (USD)
$37.7B
$311.6B
Gross margin (TTM)
n/a
19.7%
Operating margin (TTM)
n/a
6.1%
Net margin (TTM)
n/a
4%
Sector
Financials
Healthcare
Industry
n/a
Medical - Healthcare Plans
HQ country
US
US
Primary segment
Merchant
UnitedHealthcare
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Weak
Moat score
67 / 100
64 / 100
Moat domains
Network, Supply, Demand
Supply, Demand
Last update
2026-01-10
2025-12-31

Moat coverage

Shared moat types

Scale Economies Unit CostTraining Org Change CostsSuite Bundling

Fiserv, Inc. strengths

Ecosystem ComplementsDistribution ControlTwo Sided Network

UnitedHealth Group Incorporated strengths

Operational ExcellenceData Workflow Lockin

Segment mix

Fiserv, Inc. segments

Full profile >

Merchant

Oligopoly

50.4%

Financial

Oligopoly

49.6%

UnitedHealth Group Incorporated segments

Full profile >

UnitedHealthcare

Oligopoly

74.9%

Optum Health

Competitive

9.9%

Optum Insight

Competitive

1.7%

Optum Rx

Oligopoly

13.5%

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.