IAB Report Reveals Growing Transparency Gaps in Digital Video Ad Market

  • U.S. digital video ad spend doubled in five years, with social video (13%), CTV (11%), and online video (10%) projected to grow.
  • 43% of buyers express 'somewhat to no confidence' in the quality of CTV inventory, rising to 67% for open exchange/RTB.
  • 96% of buyers see a role for agentic AI in programmatic but lack consensus on its application.
  • Two-thirds of buyers now use GenAI for digital video creative, up from half in 2025.

The IAB report highlights a digital video ad market where spending growth is outpacing trust in inventory quality. As signal loss and AI-driven automation complicate audience targeting, buyers—especially SMBs—are demanding greater transparency to replicate successful campaigns. The lack of consensus on agentic AI's role further complicates the landscape, suggesting a period of experimentation ahead.

Transparency Challenges
How the erosion of buyer trust in ad inventory quality will force sellers to invest more in fraud reduction and performance tools.
AI Integration Dynamics
Whether the industry can reach consensus on the role of agentic AI in programmatic buying, particularly around human oversight and audit trails.
GenAI Adoption Pace
The pace at which smaller buyers will overcome integration hurdles to adopt GenAI for creative ad production, currently lagging behind larger players.