In terms of market share, Open AdExchange is clearly lagging behind, losing to Spark Studios in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, Shopping, People & Society and 28 other categories.
Spark Studios is leading in Computer & Electronics, Adult, Software, Lottery and 13 other categories.
Spark Studios is leading in most countries, including United States, France, Colombia, Hungary and 4 other countries.
Open AdExchange is leading in Denmark, Sweden, Italy and Guatemala.