In terms of market share, Open AdExchange is clearly lagging behind, losing to StackAdapt in all segments.
Open AdExchange has better usage coverage in more websites categories. Including Business & Industry, Arts & Entertainment, People & Society, Shopping and 23 other categories.
StackAdapt is leading in Health, Clothing, Food & Drink, Autos & Vehicles and 12 other categories.
StackAdapt is leading in most countries, including United States, Canada, Egypt, Turkey and 5 other countries.
Open AdExchange is leading in Denmark, Guatemala, Italy and Sweden.