TLDR
- Alphabet (GOOGL) is presenting final arguments Friday in an antitrust case that could force the company to sell its ad exchange business.
- A federal judge ruled in April that Google holds two illegal monopolies in the digital ad market.
- The DOJ wants Google to sell AdX, which charges publishers a 20% fee on real-time ad transactions.
- Google argues a breakup would be complex and disruptive to customers, advertisers, and publishers.
- The company plans to appeal the monopoly ruling regardless of the outcome, setting up years of additional litigation.
Alphabet’s Google is making its last stand in a federal courtroom Friday to avoid a forced breakup of its advertising technology business. The company faces one of its most serious legal challenges yet.
U.S. District Court Judge Leonie Brinkema in Alexandria, Virginia, will hear closing arguments in the case. The judge ruled in April that Google operates two illegal monopolies in the digital ad market.
The Department of Justice and a group of states want Google to sell AdX. This is the company’s ad exchange platform. Publishers pay Google a 20% fee to sell ads through AdX in auctions that happen instantly when users load websites.
The trial lasted 11 days and began in September. DOJ attorneys argued that only a forced sale would stop Google from finding new ways to limit competition. They say the company’s market power is too entrenched for lesser measures to work.
Google presented a different view during the trial. The company told the court that breaking up its ad tech business would be technically difficult. Google argued the transition would be long and painful for everyone involved.
The company said customers would suffer from the disruption. Advertisers and publishers would face uncertainty during the separation process.
Years of Legal Battles Ahead
Friday’s closing arguments mark the end of evidentiary hearings in this case. But the legal fight is far from over. The battle will now move to appeals courts.
Google has already announced plans to appeal Brinkema’s April monopoly ruling. The company is also fighting another antitrust decision from a Washington-based judge. That ruling found Google holds illegal monopolies in online search and related advertising.
In the search case, Google avoided having to sell its Chrome browser. But the judge ordered the company to share data with competitors.
The current case is part of a broader government crackdown on Big Tech. This push started during President Donald Trump’s first term and continued under the Biden administration. It represents a bipartisan effort to address tech company dominance.
The Stakes for Google’s Business
Google has largely escaped major consequences from previous antitrust actions. But this case could change that trajectory. The outcome depends entirely on what Judge Brinkema decides about remedies.
The ad tech business represents a key revenue stream for Alphabet. AdX connects advertisers with publishers across millions of websites. The platform processes billions of transactions every day.
The 20% fee Google charges has drawn scrutiny from regulators. They argue this gives Google an unfair advantage in the market. Publishers have limited alternatives if they want to reach the largest pool of advertisers.
Other tech giants also face pending antitrust cases. Meta, Amazon, and Apple all have lawsuits working through the courts. The outcome of Google’s case could influence how regulators approach these other matters.
The appeals process could take years to resolve. Legal experts expect the case to eventually reach higher courts. During that time, Google can continue operating its ad tech business as usual.
The final arguments Friday represent the culmination of years of investigation and litigation. The DOJ has spent considerable resources building its case against Google’s ad tech practices. The company has mounted an equally vigorous defense.
Judge Brinkema will now review all the evidence and arguments before issuing a decision on remedies. That ruling will determine whether Google must divest AdX or face other restrictions on its advertising business. The timeline for her decision remains unclear.


