VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Sunday, January 11, 2026

Stock Comparison

CSL Limited vs Fiserv, Inc.

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

CSL Limited

CSL · ASX

Market cap (USD)$84.4B
Gross margin (TTM)49%
Operating margin (TTM)23.5%
Net margin (TTM)23.1%
SectorHealthcare
IndustryBiotechnology
CountryAU
Data as of2026-01-02
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 CSL Limited's moat claims, evidence, and risks.

View CSL analysis

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

Comparison highlights

  • Moat score gap: CSL Limited leads (77 / 100 vs 67 / 100 for Fiserv, Inc.).
  • Segment focus: CSL Limited has 3 segments (71.7% in CSL Behring); Fiserv, Inc. has 2 segments (50.4% in Merchant).
  • Moat breadth: CSL Limited has 7 moat types across 3 domains; Fiserv, Inc. has 6 across 3.

Primary market context

CSL Limited

CSL Behring

Market

Plasma-derived therapies (immunoglobulins, albumin, coagulation factors) plus recombinant and gene therapies for rare and serious diseases

Geography

Global

Customer

Hospitals, specialty pharmacies, physicians; payers and national health systems

Role

Vertically integrated biopharma (plasma collection -> fractionation/manufacturing -> commercial distribution)

Revenue share

71.7%

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%

Side-by-side metrics

CSL Limited
Fiserv, Inc.
Ticker / Exchange
CSL - ASX
FISV - NASDAQ
Market cap (USD)
$84.4B
$37.7B
Gross margin (TTM)
49%
n/a
Operating margin (TTM)
23.5%
n/a
Net margin (TTM)
23.1%
n/a
Sector
Healthcare
Financials
Industry
Biotechnology
n/a
HQ country
AU
US
Primary segment
CSL Behring
Merchant
Market structure
Oligopoly
Oligopoly
Market share
n/a
n/a
HHI estimate
n/a
n/a
Pricing power
Moderate
Moderate
Moat score
77 / 100
67 / 100
Moat domains
Supply, Legal, Demand
Network, Supply, Demand
Last update
2026-01-02
2026-01-10

Moat coverage

Shared moat types

No overlap yet.

CSL Limited strengths

Supply Chain ControlPhysical Network DensityOperational ExcellenceGovernment Contracting RelationshipsRegulated Standards PipeCapacity MoatProcurement Inertia

Fiserv, Inc. strengths

Ecosystem ComplementsDistribution ControlScale Economies Unit CostTraining Org Change CostsTwo Sided NetworkSuite Bundling

Segment mix

CSL Limited segments

Full profile >

CSL Behring

Oligopoly

71.7%

CSL Seqirus

Oligopoly

13.9%

CSL Vifor

Oligopoly

14.4%

Fiserv, Inc. segments

Full profile >

Merchant

Oligopoly

50.4%

Financial

Oligopoly

49.6%

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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Looking for expansion-stage stocks?

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

View expansion-stage stocks

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.