A federal judge has decided against compelling Google to divest its AdX advertising exchange, a significant component of its advertising technology operations, despite a push from the Department of Justice. Judge Leonie Brinkema’s ruling allows Google to maintain control over AdX, although she endorsed most of the proposed limitations on the company’s business practices. This decision comes in the wake of a 2025 court finding that Google had unlawfully upheld monopolies within the markets for publisher ad servers and advertising exchanges.
The Justice Department, supported by several states, had contended that due to Google’s previous conduct, it should be stripped of control over AdX. They argued that Google’s retention of the exchange posed competitive concerns. However, Google countered that a forced separation of AdX would present technical challenges and potentially disrupt service for its customers.
This ruling marks another defeat for U.S. antitrust officials who are striving to dismantle the monopolistic structures of major tech companies. Previous cases against other tech giants have similarly failed to achieve the enforced sale of assets. The decision highlights the difficulties faced by regulators in their attempts to curb the dominance of large technology firms.
Though Google retains its advertising exchange, the court’s decision imposes behavioral restrictions intended to mitigate competition concerns and ensure fair treatment of publishers. These measures aim to address issues related to market competition without necessitating a structural separation of Google’s advertising operations.