business
In April 2025, a federal judge ruled that a tech giant illegally cornered the market for the technology that places ads on ordinary websites, separate from an earlier ruling about its search business.
Google was found to have illegally monopolized online ad-tech because it controlled both sides of the pipe that places ads on ordinary websites: the exchange where ad space is auctioned in real time, and the server publishers use to manage their inventory. Owning both let Google tilt auctions toward itself, squeezing out rivals and leaving publishers fewer real choices for selling ad space.
Meta and Amazon are large ad players too, but this ruling targeted the plumbing of the open web's ad auctions, a market Google built through acquisitions like DoubleClick, not Meta's social advertising or Amazon's retail marketing. Neither company was the subject of this specific case.
This was separate from the earlier ruling against Google's search dominance, meaning the company faced two major U.S. antitrust defeats in a short stretch, an unusual double blow in modern antitrust history.
business
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