Google avoids ad tech breakup as judge orders interoperability instead

On September 2, 2026, US District Judge Leonie Brinkema ruled that Alphabet Inc.'s Google must modify its advertising technology business to resolve antitrust issues but rejected the US Justice Department's bid to force a breakup or sale of its AdX exchange. Instead, Google must make its ad tech tools interoperable with competitors' systems. The decision preserves Google's $4.1 trillion business structure, allowing it to maintain its market dominance and continue its expansion into artificial intelligence.

Google ad tech remedies

• ▪US District Judge Leonie Brinkema issued her decision regarding Google's ad tech remedies under seal on September 2, 2026, with a redacted version scheduled for release later in September 2026
• ▪US District Judge Leonie Brinkema ruled on September 2, 2026, that Alphabet Inc.'s Google must make behavioral changes to its advertising technology business to address antitrust issues
• ▪The US Justice Department had requested that Google sell off parts of its advertising technology business, specifically its advertising exchange known as AdX, to check the company's power

Interoperability mandate over breakup

• ▪US District Judge Leonie Brinkema rejected the US Justice Department's request to force a breakup or sale of Google's advertising exchange, AdX
• ▪US District Judge Leonie Brinkema ordered Google to make its advertising technology tools work with those operated by rival companies instead of forcing a divestiture

Google's continued market dominance

• ▪Google has continued to gain ground in the artificial intelligence market against competitors like OpenAI and Anthropic by integrating AI into its search engine and building data centers
• ▪The ruling by US District Judge Leonie Brinkema ensures that Google's power over the internet and its $4.1 trillion business will remain largely unchanged as it expands into artificial intelligence

Federal antitrust enforcement outcomes

• ▪In a separate federal antitrust lawsuit concerning Google's search business, a judge found Google had an illegal monopoly but did not order significant structural changes, drawing criticism from opponents
• ▪The September 2, 2026 ruling in Google's ad tech antitrust case represents another instance where federal attempts to rein in major technology companies have faltered without ordering significant structural breakups