In terms of market share, Open AdExchange is clearly lagging behind, losing to Rovion in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Shopping, Sports, Office Products, Sports and 12 other categories.
Rovion is leading in Business & Industry, Health, Medicine, Business Services and 9 other categories.
Rovion is leading in most countries, including United States, Brazil, Italy, Australia and 2 other countries.
Open AdExchange is leading in Denmark, Norway, Portugal and Sweden.