Market Share by Top Websites

1 OpenX is leading in Top 10K Sites, Top 100K Sites, Top 1M Sites and The Entire Web.

2 Despite its recent growth, Yahoo Ad Exchange is still behind OpenX in all market share segments.

Websites Categories

1 OpenX has better usage coverage in more websites categories. Including Internet & Telecom, Arts & Entertainment, Business & Industry, Chats & Forums and 218 other categories.

2 Yahoo Ad Exchange is leading in Fashion & Modeling, Credit, Loans & Mortgages, Genealogy, College & University Press and 14 other categories.


1 OpenX is leading in most countries, including France, United States, Russia, Germany and 202 other countries.

2 Yahoo Ad Exchange is leading in Northern Mariana Islands.