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EMARKETER

FAQ on the Google Ad Tech Antitrust Decision

What the Landmark Ruling Means for the Ad Industry

Report by Evelyn Mitchell-Wolf  |  May 1, 2025
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Table of Contents
What did the judge say in her ruling?
What happens next?
What does this ruling mean for advertising stakeholders?
What should advertisers do now?
Sources
Media Gallery
About This Report
A second federal judge has ruled that Google is a monopolist. This decision could have profound implications—depending on the remedies.
Topics
Digital Advertising
United States
Table of Contents
What did the judge say in her ruling?
What happens next?
What does this ruling mean for advertising stakeholders?
What should advertisers do now?
Sources
Media Gallery

On April 17, 2025, Judge Leonie Brinkema ruled that Google illegally monopolized the advertising technology market. Given Google’s integral role in programmatic display—and in digital advertising more broadly—the ruling has profound implications for ad stakeholders.

Here’s what’s in the full report

1file

Exportable files for easy reading, analysis and sharing.

3charts

Reliable data in simple displays for presentations and quick decision making.

Table of Contents

  1. What did the judge say in her ruling?
  2. What happens next?
  1. What does this ruling mean for advertising stakeholders?
  2. What should advertisers do now?
  1. Sources
  2. Media Gallery

Charts in This Report

Google Antitrust Case TimelinesGoogle Network Has Steadily Lost Share of Google's Total Reported Ad Revenues (Google Network vs. YouTube % of total Google ad revenues worldwide, Q1 2022-Q4 2024)
Google's Buy-Side Ad Tech Is the Most Widely Used, Accounting for 2 of the Top 5 Platforms (% of US retail media ad buyers, by top 10 ad tech platforms, Aug 2024)

authors

Evelyn Mitchell-Wolf

Contributors

Rahul Chadha
Director, Report Editing
Nikolai Dineros
Matt Torpey
Senior Chart Editor
Emman Velasco
Chart Editor
Paul Verna
VP, Content
Yoram Wurmser
Principal Analyst
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