Canada's Competition Bureau sues to break up Google's ad business

Canada's antitrust watchdog is suing Google to force the breakup of the company’s ad tech unit. In a statement published Thursday, during the US Thanksgiving holiday, the Competition Bureau said a “thorough” investigation had found that Google had abused its dominant position in programmatic web advertising to “maintain and entrench its market power.”

Specifically, the watchdog has accused Google of giving its own tools preferential access to online ad inventory. The Competition Bureau alleges the company also took a financial hit on some transactions in an effort to disadvantage rival platforms, and that it even went so far as dictating the terms by which its own customers could do business with competing ad tech companies.

Among other remedies, the Competition Bureau is seeking to force Google to sell two of its ad tech tools. The agency also wants the company to pay a penalty for its ...