Google Concludes Defense in DOJ Antitrust Trial

The trial, which scrutinizes Google's dominance in ad tech, will resume with closing arguments in November.

The DOJ alleges Google holds monopolies in three ad tech markets: publisher ad servers, ad exchanges, and advertiser ad networks.
Google argues that the DOJ's market definitions are flawed and that the ad tech industry should be seen as a single market.
Google's defense leans on the 2018 Supreme Court ruling in Ohio v. American Express to support its argument about two-sided markets.
Witnesses from major publishers and ad tech competitors testified about challenges in competing with Google's integrated ad tech stack.
A ruling in the case is expected in the coming months, but appeals could prolong the legal battles for years.