Google will not be forced to sell its online advertising exchange, a US federal judge has ruled, delivering a significant win for the company in a closely watched antitrust case. The decision means the remedies imposed on Google following its 2025 courtroom defeat are shaping up to be minimal.
The US Department of Justice (DOJ) had pushed for the sale of the ad exchange, formerly known as AdX, as the centerpiece of its proposed remedy. That request has now been denied, allowing Google to retain a business that connects ad buyers and sellers.
What the Antitrust Case Argued
The DOJ, joined by a coalition of states, set out to prove that Google used its dominant position in online display advertising to limit the reach of competitors. Government attorneys claimed the company had “rigged” ad auctions to benefit itself at the expense of rivals.
The court agreed in part. It found that Google illegally locked publishers into using its exchange, a violation tied to the tools used by sellers. However, the judge did not accept the argument that Google broke the law with the tools it offered to advertisers, producing a mixed outcome in the case Google lost in 2025.
Why the Ad Exchange Sale Was Rejected
During the remedy phase, the DOJ argued that requiring Google to divest its ad exchange was the most effective way to restore competition and level the playing field between ad buyers and sellers. The judge declined to order that step.
Although the exchange accounts for a relatively small share of Google’s overall revenue, a forced sale could have sent ripple effects across the rest of the company’s advertising operations. Such an order would also have carried symbolic weight, sending a strong signal to other Big Tech firms that have recently pushed back a wave of antitrust challenges.
What the Ruling Means for Google
By keeping the exchange, Google preserves a core piece of infrastructure that links advertisers and publishers within its broader ad ecosystem. The narrow scope of the remedies stands in contrast to the DOJ’s ambitions when it first brought the case.
The outcome adds to a string of results in which large technology companies have fended off aggressive antitrust remedies. For Google, the ruling limits the practical consequences of its 2025 loss to the publisher-facing conduct the court identified, rather than a structural breakup of its advertising business. The DOJ did not secure the divestiture it sought, and Google retains the ad exchange it was ordered to keep.
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Image: arstechnica.com
