1
GroupM Server is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.
2
In terms of market share, Open AdExchange is clearly lagging behind, losing to GroupM Server in all segments.
1
GroupM Server has better usage coverage in more websites categories. Including Arts & Entertainment, People & Society, Business & Industry, Internet & Telecom and 61 other categories.
2
Open AdExchange is leading in Newspapers, Auctions, Office Products, Sports and 6 other categories.
1
GroupM Server is leading in most countries, including Germany, Poland, United Kingdom, Spain and 47 other countries.
2
Open AdExchange is leading in Denmark, Saudi Arabia, Guatemala and Faeroe Islands.