The judge’s language left little room for ambiguity. In the United States’ antitrust case against Google over its advertising-technology business, the U.S. District Court for the Eastern District of Virginia delivered what the Justice Department called a significant ruling on remedies, reaffirming that Google’s monopoly must be ended and its anti-competitive restraints dismantled.
The court went further than that. It rejected Google’s argument that ending a monopoly is not a proper goal of an antitrust case, a defense the company had pressed as it fought the government’s claims. The judge’s refusal to accept that framing is a blow to the company’s strategy, because it means the remedy phase will proceed on the premise that the monopoly itself is the problem.
The case, United States et al. v. Google LLC, is one of two major antitrust actions the Justice Department has brought against the company. The ad-tech case focuses on the machinery of online advertising: the tools that match buyers and sellers of digital ad space and the exchange that sits between them. The government has argued that Google controls too much of that stack and uses its position to stifle rivals and collect outsize fees.
The stakes in the ad-tech case are the mechanics of a market most people never see. When a webpage loads an ad, a chain of auctions and intermediaries decides in milliseconds which ad appears and what it costs. Google owns parts of every link in that chain, and the government’s case is that this vertical integration lets it tilt the market in its own favor.
The ruling announced by the Justice Department on September 16 concerns the remedy, the question of what Google must do to restore competition. The court’s statements that the monopoly must end, that the anti-competitive conduct’s market restraints must be removed, and that Google should not keep the profits of an illegally obtained position, all point toward structural relief rather than a modest fine.
Google has argued throughout the case that its advertising tools are popular because they work well and are integrated in ways advertisers value. The company has said that breaking up the ad-tech stack would raise costs and reduce quality, and that competition is more robust than the government’s filing suggests. The court’s ruling does not settle those arguments so much as narrow the room Google has to make them.
The decision lands against a broader backdrop. Google already lost the first of the two cases, in which a judge ruled that its search business is an illegal monopoly. That case is now in its own remedy phase, with the government pushing for changes that could include divestitures. The ad-tech ruling suggests a similar trajectory, one in which the courts are willing to impose remedies that reshape the company’s business.
Legal analysts said the rejection of Google’s monopoly-end defense is significant because it forecloses a line of argument the company has used elsewhere. If a court accepts that ending a monopoly is a proper remedy, the discussion shifts from whether Google broke the law to what a competitive market should look like, a harder argument for the company to win.
For advertisers and publishers, the ruling is the latest signal that the ad-tech market may be restructured. Publishers have long complained that Google’s dominance in the ad exchange suppresses the prices they receive for their inventory, and advertisers have argued that the opacity of the system hides fees that would not survive real competition. A remedy that opens the stack would be felt immediately in those two camps.
The case is not over. The ruling is one step in a remedy process that will involve proposals, objections, and likely appeals. Google has signaled it will fight the remedy as hard as it fought liability, and the appeals process in a case of this scale can run for years. What the September 16 decision establishes is the frame the fight will take: the monopoly must end, and the court intends to say how.
The advertising-technology market is the machinery that funds most of the free web. Every day, billions of auctions match advertisers with the space where their messages appear, and Google’s tools sit at several points in that chain, from the publisher’s ad server to the exchange where impressions are priced. The government’s case is that this concentration lets Google set the terms, and the remedy phase is where the court will decide how much of that chain the company must give up.
The search case is the precedent investors watch. There, a judge has already found an illegal monopoly, and the Justice Department has proposed remedies that range from data sharing to the possible sale of Chrome. The ad-tech ruling suggests the courts are no longer treating these cases as academic exercises. Google’s argument that monopolies should not be ended has now been rejected on the record, and that rejection will echo through every remedy filing that follows.
