Judge Spares Google From Ad-Tech Breakup, Orders Behavioral Changes Instead

U.S. District Judge Leonie Brinkema ruled on September 2, 2026 that Google will not be forced to break up its advertising technology business, despite having previously found the company held an illegal monopoly over the ad tech industry.

What the Judge Rejected — and What She Ordered Instead

• Brinkema declined to order the sale of AdX, the exchange where publishers pay Google a 20% fee to sell ads in instant auctions — the DOJ's central structural remedy request
• The judge instead accepted most of the DOJ's proposed behavioral remedies, including measures requiring Google's ad tools to work with rivals' tools
• The full written ruling will remain under seal for 14 days to allow the parties to propose redactions

The Second Reprieve in a Year

This marks the second time within a year that Google has avoided a Justice Department proposal to dismantle part of its business through the courts, following an earlier decision in the separate search-monopoly case where Judge Amit Mehta similarly imposed behavioral remedies rather than a breakup.

Reactions

Google welcomed the decision. A Department of Justice spokesperson said the antitrust division was 'pleased that the court ordered substantial relief' in the case, characterizing it as a step toward 'restoring competition and bringing relief for the American people in online advertising markets,' despite the rejection of the breakup itself.

What This Means for Advertisers and Publishers

For organizations that advertise through or publish on Google's ad tech stack, the practical near-term impact will come from the specific behavioral remedies — particularly interoperability requirements pushing Google's ad tools to work with competitors' tools — once the full ruling is unsealed and implementation details become clear. The structural outcome (no breakup) means Google's ad tech business remains intact as a single operator, so the actual competitive impact depends heavily on how rigorously the behavioral remedies are enforced going forward, not on the ruling's headline outcome alone.