In terms of market share, Open AdExchange is clearly lagging behind, losing to Six Apart Advertising in all segments.
Six Apart Advertising has better usage coverage in more websites categories. Including People & Society, Arts & Entertainment, News & Media, Humor and 48 other categories.
Open AdExchange is leading in Business & Industry, Marketing & Advertising, Real Estate, Sports and 8 other categories.
Six Apart Advertising is leading in most countries, including United States, United Kingdom, India, Bangladesh and 6 other countries.
Open AdExchange is leading in Denmark, Italy and Guatemala.