A federal judge in Alexandria today refused every structural remedy the Justice Department had asked for against Google's advertising technology business, ending a sixteen-month argument over whether a proven monopolist must sell the exchange at the centre of the open web.

Judge Leonie M. Brinkema entered a two-page order in the Eastern District of Virginia on September 2, 2026, disposing of the remedies phase of United States of America et al. v. Google LLC. The document, filed on the public docket as Document 1857 in Case 1:23-cv-108 (LMB/JFA), does not explain itself. It points to an accompanying Memorandum Opinion that no one outside chambers and counsel of record can currently read.

What the order does say is unambiguous. According to the filing, the plaintiffs' proposals for structural remedies in the form of the divestiture of AdX, the open-sourcing of DFP's final auction logic, and the contingent divestiture of DFP Remainder "be and are REJECTED". The capitalisation is the court's own. Immediately after, the order records that most of the parties' proposed behavioral remedies, as modified by this Court, "be and are ACCEPTED."

Two sentences, then, dispose of the most consequential structural antitrust request brought against a technology company since the Microsoft litigation of the late 1990s.

Three proposals, one line of text

The rejected package was not a single idea. It was three interlocking mechanisms, each aimed at a different layer of the stack the court had already condemned.

Divestiture of AdX would have separated Google's ad exchange from the rest of Alphabet. The Justice Department sought a sale within twelve months of final judgment, a demand set out in its final post-trial brief filed on November 3, 2025. AdX is the venue where publishers pay roughly a fifth of gross revenue for access to demand originating in Google Ads, and it is the asset whose fee structure sat at the centre of the liability findings.

Open-sourcing DFP's final auction logic addressed the layer above. DoubleClick for Publishers, rebranded inside Google Ad Manager in 2018, decides which advertisement fills a slot. Publishing the code governing that last decision would have removed the informational asymmetry the government argued allowed Google to favour its own exchange. Testimony during the trial put the engineering cost of that exercise at roughly two years, with a software expert estimating 24 months for the open-sourcing work and 18 months for the data migration APIs.

Contingent divestiture of DFP Remainder was the enforcement backstop: if the first two measures failed to produce competition inside a defined window, the rest of the publisher ad server would go as well. It was designed to answer the objection that behavioural rules decay.

All three are now dead in this court.

The parts the order does not disclose

The order does not enumerate which behavioural remedies survived, which did not, or what the court changed. The word "most" carries a great deal of weight and no detail. The modifications are described only as those "imposed in the accompanying Memorandum Opinion", which remains sealed.

That matters because the behavioural proposals on the table were substantially different from one another. Google's own filing offered to make real-time bidding responses from AdX available to rival publisher ad servers, to remove Unified Pricing Rules, and to accept a monitoring trustee, with the company arguing for a three-year supervision period and later signalling openness to a longer one. The government's version ran to ten years of restrictions and enumerated a catalogue of re-monopolisation routes it wanted policed, among them latency manipulation, signal alteration, algorithmic changes, differential pricing and bid volume limits. Which of those obligations made it into the accepted set is not knowable from the order.

Nor does the order set an implementation date, name a trustee, or fix a duration. Those terms belong to the Final Judgment, and the Final Judgment does not yet exist.

Two clocks now running

The order starts two separate countdowns, and they run in parallel rather than in sequence.

Within 30 days, the parties must meet and confer and file one jointly proposed Final Judgment reflecting the decisions and modifications imposed in the sealed opinion. The court was specific about the format. Where a provision remains unresolved, both sides must include their respective versions, labelled as to the proponent, with no argument or explanation attached. The order states that the parties will be notified if further briefing or oral argument is needed. A footnote adds an administrative requirement: alongside the public docket filing, a Microsoft Word version goes directly to chambers.

Within 14 days, the parties must move for any redactions to the Memorandum Opinion. The court's instruction is restrictive. Requests must be kept to a minimum and must be supported by sound reasons. If none are filed, the opinion is unsealed automatically. If redactions are requested and the court finds them meritorious, the opinion stays under seal and a redacted version is filed publicly. The Clerk was directed to forward copies of both the order and the sealed opinion to counsel of record.

The practical consequence is that the reasoning behind the rejection of divestiture reaches the market roughly two weeks after the result, and possibly with holes in it. A significant volume of sealed material was referenced at trial, which is the stated basis for the delay.

Reaction from the complainant side

Thomas Höppner, a competition lawyer and partner at Geradin Partners who has litigated against Google in European proceedings, posted his reading of the order within hours of the filing. He framed it as a denial rather than a resolution, writing that his interest lay in the court's reasoning: "I'm curious why the judge concluded behavioural remedies alone will be sufficient."

Höppner also linked the American outcome directly to Brussels. According to his post, the ruling represents a missed opportunity that shifts hopes for structural remedies onto the European Commission's parallel case, "though today's ruling will likely have some chilling effect there too."

That is a contested proposition rather than an established one. The Commission's case rests on a different legal instrument, a different evidentiary record and a different market definition, and nothing in a Virginia district court order binds a European regulator. But the two proceedings have been read against each other by the industry for two years, and the argument that behavioural undertakings are insufficient has now lost its most prominent test.

How the case arrived here

The Justice Department and eight states filed on January 24, 2023. A three-week bench trial concluded in November 2024. On April 17, 2025, the court found that Google had illegally monopolized the publisher ad server market and the ad exchange market for open-web display advertising, and that it had unlawfully tied the two together in violation of Sections 1 and 2 of the Sherman Act. The 115-page opinion condemned five practices, among them Dynamic Allocation, Last Look, Sell-Side Dynamic Revenue Share and Unified Pricing Rules. It declined to find the DoubleClick and Admeldacquisitions themselves anticompetitive, and it dismissed the government's advertiser ad network claim for want of a properly defined market.

The remedies trial opened on September 22, 2025 and ran into October, drawing testimony from publishers including wikiHow and the Daily Mail, from exchanges including Index Exchange and PubMatic, and from technical experts on both sides. Internal Google documents surfaced during the proceedings showed the company had itself modelled shutting AdX down, open-sourcing DFP auction logic and letting DFP bid into Prebid, three scenarios closely matching the government's eventual asks.

Closing arguments took place on November 21, 2025. The bench signalled scepticism about the practicality of a forced sale on that day, with questions concentrated on implementation timelines, enforceability during appeals and the identification of a qualified buyer. A ruling was expected in January or February 2026. It arrived in September.

Google's position throughout was that no divestiture has ever been ordered to remedy product tying and that unwinding integrated infrastructure would create disruption disproportionate to the violation. That argument has now prevailed.

Brussels holds the remaining structural lever

The European Commission fined Google 2.95 billion euros on September 5, 2025 in Case AT.40670 and ordered the company to end self-preferencing and address what it called an inherent conflict of interest. Google rejected the divestiture prescription on November 13, 2025, offering product changes instead, including buyer-specific price floors in Ad Manager and longer-term interoperability commitments. The Commission published the provisional public version of the decision on January 14, 2026 while market testing those behavioural proposals. Google and Alphabet filed an annulment action with the General Court two days earlier.

European regulators had already concluded, in the September 2025 decision, that behavioural remedies would be insufficient because Google had repeatedly modified practices to avoid detection while preserving the effects. Whether an American court reaching the opposite conclusion changes that calculus is now an open question in Brussels rather than a settled one.

The damages wave is unaffected

Nothing in today's order touches the follow-on litigation, which has been proceeding on the strength of the April 2025 liability findings rather than the remedy.

On October 27, 2025, the Southern District of New York gave preclusive effect to the Virginia findings, removing the requirement for private plaintiffs in that court to prove conduct again. Claimants argue injury and quantum instead. OpenX filed in August 2025, PubMatic in September, Magnite in September, Index Exchange in November, and Raptive, representing more than 6,000 websites, in October. Vox Media filed a 94-page complaint on January 14, 2026, the same day The Atlantic Monthly Group filed its own. Teads sued on August 3, 2026, claiming 6.88 trillion impressions were diverted from rival exchanges, then disclosed to public markets that suing its largest counterparty carried retaliation risk.

Advertiser-side claims run in parallel. A mass arbitration campaign targeting alleged overcharges was announced in May 2026, and in the United Kingdom the Competition Appeal Tribunal certified an opt-out claim covering search advertisers between 2011 and 2025. In Sweden, the Stockholm Patent and Market Court ordered Google to pay damages to Klarna on July 1, 2026 after finding that the company's 2017 Shopping compliance measures never ended the abuse the Commission had condemned.

The economics of those claims do not depend on whether AdX changes hands.

What the ruling leaves in place for buyers and sellers

For media buyers and publishers, the immediate answer is that the supply path looks exactly as it did yesterday. Google Ad Manager remains a single integrated product. AdX and DFP stay under one owner. The take rate is unchanged. Migration decisions taken on the assumption of a forced separation now rest on a premise the court has removed.

Some of the conduct-level changes had already happened without a judgment. Google removed Unified Pricing Rules from Ad Manager in December 2025 under antitrust pressure, restoring the ability to set different floors for individual buyers, a capability the 2019 shift to a first price auction had eliminated. That reversal arrived nine months before any remedies order, which illustrates both the pressure litigation exerts and the limits of what a judgment adds once a defendant has begun conceding on its own timetable.

The structural question the case was meant to answer has not gone away. Google Network revenue, the line item that captures third-party advertising through the contested stack, fell 4% year over year in the first quarter of 2026 to 6.97 billion dollars, a decline driven by traffic shifts rather than by any remedy. Publishers watching that number are contending with two separate pressures on open-web monetisation, and today's order addresses neither of them directly.

What remains is a Final Judgment to be drafted inside 30 days, an opinion to be unsealed inside 14, and an appeal record on liability that Google has said since April 2025 it intends to pursue.

Timeline

Summary

Who: United States District Judge Leonie M. Brinkema of the Eastern District of Virginia, ruling in United States of America et al. v. Google LLC, brought by the Department of Justice alongside state attorneys general against Google LLC.

What: A two-page order rejecting the plaintiffs' three structural remedies, namely divestiture of AdX, open-sourcing of DFP's final auction logic and contingent divestiture of DFP Remainder, while accepting most proposed behavioural remedies as modified by the court. The accompanying Memorandum Opinion setting out the reasoning was filed under seal.

When: Entered September 2, 2026, sixteen months after the April 17, 2025 liability ruling and more than nine months after closing arguments on November 21, 2025. The parties have 30 days to file a jointly proposed Final Judgment and 14 days to move for redactions to the sealed opinion.

Where: The Alexandria Division of the United States District Court for the Eastern District of Virginia, Case 1:23-cv-108 (LMB/JFA), Document 1857.

Why: The order determines that a company found to have monopolized the publisher ad server and ad exchange markets will keep the assets at issue, resolving the structural question in Google's favour and leaving conduct rules, whose content is not yet public, as the operative constraint on the open-web display supply chain.