New WPP Forecast: Global Ad Revenue to Grow to $1.3 Trillion

Study attributes 8.9 percent growth rate this year to growing AI investments

Global ad revenue is on pace to hit $1.3 trillion in 2026, according to a new WPP Media forecast — its highest share of GDP since 1999. Artificial intelligence (AI) investment and Asia-based advertiser expansion may be reshaping where and how growth is distributed across channels.