Google keeps its ad exchange after US antitrust remedies ruling

A federal judge will let Google keep its AdX ad exchange. On September 2, Judge Leonie Brinkema of the U.S. District Court for the Eastern District of Virginia signed a two-page order in United States v. Google LLC that turned down the government's push to break up Google's ad-tech stack and instead accepted most of the proposed behavioral fixes, as modified by the court.

This is the remedies phase, not the verdict. Google already lost on liability in 2025, when the court found it had illegally monopolized the markets for publisher ad servers and ad exchanges that serve open-web display ads. The September 2 order decides the penalty, and on the penalty Google avoided the structural remedy the Justice Department wanted most, which is why coverage from 9to5Google and Ars Technica read it as a win for Google.

It was a triple rejection, not one save

The headlines stopped at AdX, but the order refused three structural remedies, not one. The court declined to force a divestiture of AdX, declined to make Google open-source the final auction logic inside its DFP publisher ad server, and declined a contingent divestiture of the DFP Remainder. That is a clean sweep against breakup-style relief, so treat "Google will not have to sell AdX" as the smallest version of what actually happened.

The rules Google did not escape are still sealed

What Google did not dodge is conduct rules. The court accepted most of the parties' proposed behavioral remedies, as modified, but the specifics sit in a Memorandum Opinion that is under seal. Google and the DOJ have 14 days to ask for redactions. If neither moves, the opinion unseals; if the court grants redactions, a public redacted version follows. Either way, the exact conduct obligations are roughly two weeks out from the September 2 order.

There is a second clock. Within 30 days the parties must meet and confer and file a single jointly proposed Final Judgment that reflects the sealed opinion. That joint filing, not the order alone, is where the enforceable language will land, and the clerk was directed to forward the order and the sealed opinion to counsel of record.

The pattern is now familiar

This is the recognizable shape of US Big Tech antitrust in 2026: liability sticks, the breakup does not. In the separate search case, the court found Google an illegal monopolist and still let it keep Chrome and its data, ordering behavioral limits instead. The ad-tech remedy lands in the same place, and it arrives while the government keeps opening new fronts, from a DOJ probe of a16z's board seats to Google's own manual-action fight in the EEA. It also sharpens the stakes in the ad market itself, where the FTC's Amazon ad-surcharge lawsuit is testing how far antitrust reaches into how platforms price advertising.

For publishers, ad-tech buyers, and counsel, the two dates that matter now are the memo unseal (about two weeks out, when the real conduct rules become readable) and the 30-day joint Final Judgment filing that turns them into an enforceable order. Read the behavioral terms the day they post, because that language, not the AdX headline, decides how Google's auctions have to change.