EU study finds DMA has not opened Google, Meta and Amazon ad auction data

A 571-page study commissioned by the European Commission concludes that the Digital Markets Act’s advertising transparency rules have not given advertisers and publishers meaningful access to the pricing and performance data that Google, Meta and Amazon hold. The report, titled “Online advertising at the crossroads of different regulatory frameworks”, was released on the EU Publications Office website on October 29, 2026. It was prepared by the research consultancy AWO for the Commission’s Directorate-General for Communications Networks, Content and Technology (DG CNECT), and written by Nick Botton, Lex Zard and Oana Goga. The manuscript was completed in April 2026, and the opinions in it are those of the authors, not the Commission’s official position, according to the document’s legal notice.

In Short

The European Union asked researchers to check whether its new rules for the biggest tech companies had made online advertising easier to understand for the businesses that buy…