A federal judge in Alexandria, Virginia, ruled on Wednesday, Sept. 2, 2026, that Alphabet's Google will not be forced to sell its online advertising exchange, AdX. U.S. District Judge Leonie Brinkema rejected a bid by the U.S. Department of Justice (DOJ) to mandate a divestiture as a remedy for what she previously determined were illegal monopolies in the advertising technology market. While the judge declined the forced sale, she accepted the majority of the behavioral remedies proposed by the involved parties to address the company's conduct.
The ruling follows a 2023 lawsuit filed by the DOJ and a coalition of states. In April 2025, Judge Brinkema found that Google held illegal monopolies over ad exchanges and the servers used by publishers to host advertisements. The court previously concluded that Google had unlawfully required publishers using its ad server to also use AdX, a practice that the judge stated harmed publisher customers and the competitive process. During a trial on remedies held in 2025, the DOJ argued that Google's history of conduct meant it could not be trusted to continue operating AdX.
Google opposed the forced sale, testifying that such a transition would be technically complex and would cause a long period of disruption for its customers. The company also noted that the DOJ's demand differed from a previous offer Google made to European Union regulators in 2024 to sell the exchange to settle a separate investigation. According to 2020 data from Wedbush and court filings, the Ad Manager business accounted for 4.1% of Google's total revenue and 1.5% of its operating profit; however, more recent financial figures were redacted from public court documents.
This decision directly affects online publishers and websites that rely on Google’s advertising technology to generate revenue. These publishers currently pay a 20% fee to Google for every ad sold through the AdX exchange. While the court will impose behavioral remedies—which are court-ordered changes to how a company operates without changing its ownership—the exchange will not see a new independent owner. The ruling means the integrated structure between Google's ad servers and its exchange will remain intact, though under new rules intended to prevent the company from locking customers into its own products as it was found to have done in the past.
The scale of the impact involves a business that, as of 2020, contributed billions to Alphabet's bottom line, even though it represents a small fraction of the company's total $300-plus billion annual revenue. For the technology industry, this marks the third consecutive instance where federal judges have blocked attempts by U.S. antitrust enforcers to break up major technology firms. Similar efforts to force Meta Platforms to sell Instagram and WhatsApp, and to force Google to sell its Chrome browser, were also rejected by courts in 2025.
What happens next depends on whether the Department of Justice chooses to appeal the remedy decision to a higher court. While this specific phase of the litigation has concluded with the rejection of the sale, the behavioral remedies accepted by Judge Brinkema will now move toward implementation. Meanwhile, other federal antitrust trials involving the tech sector are still pending; cases against Amazon and Apple, which target the smartphone and online retail markets, are not scheduled to reach the trial stage until at least 2027. No specific effective dates for the new behavioral rules for Google were disclosed in the reported ruling.