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 27 other categories.
Spark Studios is leading in Computer & Electronics, Software, Games, Video Games and 12 other categories.
Open AdExchange is leading in most countries, including Denmark, Sweden, Slovakia and Guatemala.
Spark Studios is leading in United States, France and Romania.