Overview

• Proceedings begin in Alexandria, Virginia, with testimony expected to run into early October before post-trial briefs and closing arguments in the weeks ahead.
• The Justice Department seeks a court-ordered divestiture of Google's AdX exchange and wants the auction-winner logic open-sourced, alongside a 10-year ban on Google operating an ad exchange.
• If competition does not improve within four years, the government proposes requiring Google to sell its publisher ad server as an additional step.
• Google opposes a breakup and offers behavioral and technical commitments such as deeper interoperability, Prebid and header-bidding access to AdX, deprecating unified pricing, and foregoing first and last look.
• Judge Leonie Brinkema asked parties to address the recent search-case ruling that rejected divestiture, and a final remedies order is widely expected in 2026 with appeals likely.