Alphabet’s Google avoided a forced breakup of its advertising technology business on Wednesday after a U.S. judge rejected the Department of Justice’s request to make the company sell its ad exchange platform, marking another setback for recent attempts by U.S. regulators to break up major technology companies.
U.S. District Judge Leonie Brinkema in Alexandria, Virginia, declined to require Google to sell AdX, the company’s advertising exchange where publishers sell digital ad space through instant auctions. The DOJ had argued that Google could not be trusted to continue operating the platform after the court previously ruled that the company had illegally restricted competition in online advertising technology.
Instead, the judge approved behavioral remedies aimed at addressing competition concerns. A detailed ruling is expected within 14 days after confidential information is reviewed and redacted.
Google Avoids Forced Sale of AdX
AdX represents a relatively small portion of Google’s overall business, but it has been central to the government’s antitrust case against the company’s advertising technology operations.
The DOJ and a coalition of states sued Google in 2023, accusing the company of maintaining illegal monopolies in digital advertising markets used by online publishers and advertisers.
In April 2025, Judge Brinkema ruled that Google held illegal monopolies in certain advertising technology markets, including publisher ad servers and ad exchanges that connect advertisers with sellers. The court found that Google had harmed competition by using its dominance to push publishers toward its own advertising tools.
Google argued that forcing a sale of AdX would create significant technical challenges, disrupt customers and result in a lengthy transition. The company proposed alternative solutions, including providing competitors with greater access to real-time bidding information.
Antitrust Pressure on Big Tech Continues
The decision raises broader questions about whether courts can effectively limit the power of the largest technology companies in the U.S. economy.
The ruling marks the third recent case in which U.S. antitrust regulators attempted to force a major technology company to sell key assets but failed.
Previously, a federal judge rejected the Federal Trade Commission’s effort to force Meta to sell Instagram and WhatsApp, ruling that regulators had not sufficiently proven the company maintained a monopoly in social media markets.
Another judge also rejected the DOJ’s proposal requiring Google to sell its Chrome browser after finding that competition from artificial intelligence companies, including OpenAI’s ChatGPT, had changed the online search landscape.
Google and DOJ Respond to the Decision
Google welcomed the ruling, saying the court rejected the DOJ’s proposal to break apart tools that help businesses reach customers online.
Google executive Lee-Anne Mulholland said the company was pleased with the decision, while the DOJ stated that the court had ordered significant relief and that the agency was evaluating its next steps.
The DOJ said the ruling brings regulators closer to restoring competition in online advertising markets, although it did not rule out further action.
The Future of Google’s Advertising Business
Google’s advertising technology business remains a major focus of regulators as governments worldwide examine the influence of large digital platforms.
While the company avoided a breakup, Google will still face requirements designed to increase competition and limit practices that regulators argue have harmed advertisers, publishers and consumers.
The outcome highlights the challenges regulators face when attempting to restructure technology giants whose services are deeply integrated into the global digital economy.