Sponsors (8)
The bill increases transparency and competition in digital advertising and strengthens remedies for harmed businesses, but it also imposes compliance and litigation burdens, regulatory complexity, and potential cost pass-throughs that could raise costs for firms and advertisers.
Advertisers and ad buyers (including small-business owners and tech workers) gain clearer visibility into bids, routing, and fees, allowing verification of best execution and potential cost savings.
Advertisers, publishers, and consumers benefit from reduced conflicts of interest because large firms are barred from owning exchanges and brokerages in certain combinations, promoting fairer ad markets.
Brokerage customers (primarily businesses) retain ownership of their order records, strengthening their control over business data and access to transaction records.
Smaller brokerages and exchanges (and their employees) face new compliance requirements (reporting, data retention, clock synchronization) that raise operating costs and could reduce new market entrants.
Advertisers and consumers may face higher costs if large digital-ad firms must divest major business lines and pass divestiture or breakup costs onto customers.
A wide set of firms (including many mid-size digital-ad companies) could be captured by the bill's $20B and $5B revenue thresholds, creating regulatory complexity and uncertainty in calculating 'digital advertising revenue.'
Based on analysis of 2 sections of legislative text.
Bars certain combinations of ad exchanges and brokerages for very large ad firms and imposes duties and transparency requirements on large brokerages.
Introduced March 13, 2025 by Mike Lee · Last progress March 13, 2025
Creates new antitrust rules for the digital advertising market: it defines key terms, sets revenue-based thresholds, bars large ad companies from combining certain ad-exchange and brokerage roles, and requires brokerages above a lower threshold to follow duties to act in the best interests of their clients. The law becomes effective one year after enactment and gives antitrust authorities tools and timelines for required divestitures and enforcement under the Clayton Act.