In terms of market share, Open AdExchange is clearly lagging behind, losing to Visible Measures in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Shopping, Internet & Telecom, Law & Government and 13 other categories.
Visible Measures is leading in Marketing & Advertising.
Open AdExchange is leading in most countries, including Denmark, Guatemala, Norway, Slovakia and one other country.
Visible Measures is leading in Brazil, United Kingdom and United States.