Federal judge in Virginia finds Google illegally monopolized the ad technology that places ads across the web, then declines to break up the business, leaving the sealed conduct remedies — court ordered rules short of a breakup — as the next move.
A federal judge in Virginia ruled Tuesday that Google illegally monopolized the market for the technology that auctions and places ads across websites, then declined the Justice Department's request to break up that business. The decision completes a two-year pattern: two federal courts have now found Google an illegal monopolist in two separate markets. Neither has ordered a breakup.
US District Judge Leonie M. Brinkema, sitting in the Eastern District of Virginia, found that Google illegally protected its dominance over the largely invisible ad tech stack that places ads across the web, according to a New York Times report on the ruling. The "ad tech stack" is the plumbing of the digital ad business: the exchanges that auction ad space in real time, the ad servers that decide which ad to show on which page, and the tools publishers use to sell their inventory. Google runs the dominant version of all three through its Google Ad Manager product.
The Justice Department had asked Brinkema to force Google to divest pieces of that business, most likely the ad exchange where publishers and advertisers meet to trade. She declined, with conduct remedy specifics still under seal. The specifics of those conduct remedies are not in the public short order; the full remedies order is sealed, per the case docket on CourtListener.
That is the live question. The judge found the law was broken. The judge did not break the business. The judge's remedy is somewhere in between, and the public cannot yet see where.
This is the second time in twelve months that a federal court has found Google a monopolist and declined to break it up. The earlier ruling, from the District of Columbia in Google's search monopoly case, imposed remedies that the Wikipedia entry on the United States v. Google LLC (2023) case) characterizes as a structural defeat for the government's breakup ask. Brinkema's ad tech ruling follows the same template: a liability finding, a rejection of divestiture, and conduct remedies that the public must wait to read.
The pattern is not limited to Google. The Federal Trade Commission lost its monopolization case against Meta over Instagram and WhatsApp last year. The federal antitrust cases against Amazon and Apple are expected to go to trial in the coming years, per the NYT's coverage of the ruling. Three of the largest US tech companies are now in court on monopolization theories, and one of them has already won two liability findings without a structural break.
The new rule, stated plainly: proving a tech monopoly is achievable; breaking one up is not. A company with a market capitalization of roughly $4.1 trillion, as the NYT noted, and control over search, advertising, and a growing AI infrastructure push is the kind of defendant for whom "you broke the law" has become a workable outcome. What the conduct remedies will actually require of Google's ad tech business is the next data point.
That data point is sitting in a sealed order. Until it is unsealed, the public knows the liability finding, knows the breakup didn't happen, and knows the conduct remedy exists but not what it says. The watch list is now short: the unsealed ad tech remedies order, the Google search remedies fight, the Meta appeal, and the Amazon and Apple trials. Each one will test whether the "no breakup" ceiling is a rule or a coincidence.