Google Keeps AdX After Court Rejects DOJ Breakup Bid, Opts for Behavioral Fixes

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A U.S. federal judge has ruled that Google will not be required to sell its AdX advertising exchange, rejecting the Department of Justice's push for a structural breakup of Google's ad tech business. Judge Leonie M. Brinkema of the U.S. District Court upheld the underlying monopoly findings from 2025 but chose behavioral remedies over divestiture. Instead of dismantling Google's ad tech stack — which includes AdX, DFP, and Ad Manager — the court is pursuing measures such as interoperability requirements, data-sharing provisions for qualified competitors, and oversight through a Remedies Technical Committee. The decision means Google retains ownership and control of its ad tech infrastructure, though the final scope and practical obligations of the remedies are yet to be fully disclosed. The outcome is significant for the digital advertising industry, as the extent of any interoperability mandates will determine how much competitive access rival exchanges and publisher tools ultimately gain.

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ProgrammingDEV Community ·

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