VOL. XCIV, NO. 247

★ WIDE MOAT STOCKS COMPARISON ★

NO ADVICE

Friday, January 2, 2026

Stock Comparison

Alphabet Inc. vs Halma plc

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

Alphabet Inc.

GOOGL · The Nasdaq Stock Market

Market cap (USD)$3.7T
Gross margin (TTM)59.2%
Operating margin (TTM)32.2%
Net margin (TTM)32.2%
SectorCommunication Services
IndustryInternet Content & Information
CountryUS
Data as of2025-12-21
Moat score
86/ 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 Alphabet Inc.'s moat claims, evidence, and risks.

View GOOGL analysis

Halma plc

HLMA · London Stock Exchange

Market cap (USD)
Gross margin (TTM)
Operating margin (TTM)
Net margin (TTM)
SectorTechnology
Industry
CountryGB
Data as of2026-01-02
Moat score
59/ 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 Halma plc's moat claims, evidence, and risks.

View HLMA analysis

Comparison highlights

  • Moat score gap: Alphabet Inc. leads (86 / 100 vs 59 / 100 for Halma plc).
  • Segment focus: Alphabet Inc. has 6 segments (56.6% in Google Search & other (Advertising)); Halma plc has 3 segments (40% in Safety).
  • Primary market structure: Quasi-Monopoly vs Competitive. Pricing power: Strong vs Moderate.
  • Moat breadth: Alphabet Inc. has 10 moat types across 4 domains; Halma plc has 4 across 2.

Primary market context

Alphabet Inc.

Google Search & other (Advertising)

Market

Search advertising (intent-based digital ads)

Geography

Global

Customer

Advertisers (SMB to enterprise)

Role

Ad platform / publisher

Revenue share

56.6%

Halma plc

Safety

Market

Safety technologies (fire safety, public safety, worker safety, and protection of critical assets/infrastructure)

Geography

Global

Customer

Commercial/industrial facility owners and operators; infrastructure operators; installers and OEM channels

Role

Technology OEM / component + systems supplier

Revenue share

40%

Side-by-side metrics

Alphabet Inc.
Halma plc
Ticker / Exchange
GOOGL - The Nasdaq Stock Market
HLMA - London Stock Exchange
Market cap (USD)
$3.7T
n/a
Gross margin (TTM)
59.2%
n/a
Operating margin (TTM)
32.2%
n/a
Net margin (TTM)
32.2%
n/a
Sector
Communication Services
Technology
Industry
Internet Content & Information
n/a
HQ country
US
GB
Primary segment
Google Search & other (Advertising)
Safety
Market structure
Quasi-Monopoly
Competitive
Market share
88%-91% (reported)
n/a
HHI estimate
8,115
n/a
Pricing power
Strong
Moderate
Moat score
86 / 100
59 / 100
Moat domains
Network, Demand, Legal, Supply
Legal, Demand
Last update
2025-12-21
2026-01-02

Moat coverage

Shared moat types

Switching Costs General

Alphabet Inc. strengths

Data Network EffectsHabit DefaultTwo Sided NetworkContent Rights CurrencyOperational ExcellenceDefault OS GatewayCapex Knowhow ScaleEcosystem ComplementsIncubation & patient capital

Halma plc strengths

Compliance AdvantageDesign In QualificationProcurement Inertia

Segment mix

Alphabet Inc. segments

Full profile >

Google Search & other (Advertising)

Quasi-Monopoly

56.6%

YouTube (Advertising)

Oligopoly

10.3%

Google Network (Advertising)

Competitive

8.7%

Google Subscriptions, Platforms & Devices

Quasi-Monopoly

11.5%

Google Cloud

Oligopoly

12.4%

Other Bets

Competitive

0.5%

Halma plc segments

Full profile >

Safety

Competitive

40%

Environmental & Analysis

Competitive

35%

Healthcare

Competitive

25%

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.