In a significant legal decision, a U.S. judge has dismissed the Department of Justice’s attempt to compel Google to divest its advertising exchange, AdX. This ruling permits Google to maintain a crucial component of its advertising technology operations, despite previous findings of monopolistic practices.
Judge Leonie Brinkema opted against mandating the sale of AdX, while simultaneously endorsing most of the proposed restrictions on Google’s business conduct. This development follows a 2025 court decision that determined Google had unlawfully preserved monopolies in the markets for publisher ad servers and advertising exchanges.
The Justice Department, supported by several U.S. states, argued that Google’s control over AdX should be relinquished due to its historical anti-competitive behavior. Google countered this by asserting that a forced separation of the platform would be technically challenging and could potentially disrupt services for its customers.
This ruling marks another hurdle for U.S. antitrust authorities in their efforts to dismantle the market dominance of major technology companies. Previous attempts to enforce similar asset sales against other large tech firms have also encountered resistance and limited success.
While the court’s decision allows Google to retain its advertising exchange, it does impose behavioral measures intended to address competition issues and improve Google’s interactions with publishers. This outcome highlights the ongoing complexities involved in regulating the technology sector’s most powerful players.