Major
Prebid proposes auction overhaul to separate Google’s AdX from GAM
Prebid is developing a new auction framework that would let ad servers bid into Prebid rather than having Prebid bid into ad servers. The proposal is in public comment and could be formalised by the end of Q1, potentially allowing publishers to access Google AdX without using Google Ad Manager’s ad server.
Why it matters: Publishers, ad-tech vendors and advertisers may need to assess auction architecture, Prebid participation, Google demand access, interoperability and future operational costs. If formalized, the change could alter competitive dynamics in a major part of digital advertising, even though immediate implementation is not yet confirmed.

