Observed Signal · Sep 10, 2026 · Market Signal · Source: IAB · Impact: 3.5/5
IAB Releases 2026 Outlook Study September Update and The Creator Signal Report
The IAB blog features new insights: '2026 Outlook Study: September Update, A Snapshot of U.S. Ad Spend, Opportunities, and Strategies for Growth' and 'The Creator Signal: How AI Systems Interpret Influence in Commerce'.
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Recent verified developments and strategic activity across this market segment.
IAB Raises 2026 U.S. Ad Spend Forecast to +12.3% YoY Growth, as Strong First Half Lifts Expectations
IAB raises its 2026 U.S. ad spend forecast to +12.3% YoY growth, citing a strong first half. The news page also features new releases including 'Measuring Visibility in the AI Era' and the launch of IAB Global Creator Week.
IAB Raises 2026 Ad Forecast; Google Adds AI to Meridian MMM
The IAB raised its 2026 U.S. ad spend growth forecast to 12.3%, up from 9.5% in January, citing a stronger-than-expected first half and improved economic clarity. Growth is particularly strong in social media, CTV, and commerce media. Meanwhile, Google announced updates to its open-source MMM tool Meridian, adding a chatbot interface for model building, data quality auditing, and troubleshooting. Meridian's GeoX geotesting feature exited beta, allowing marketers to segment campaigns by geography and incorporate findings into models. Additionally, Meridian now supports upper-funnel signals like branded search volume. Google is also integrating its Data Manager into Google Analytics and DV360 and adopting the IAB Tech Lab's ECAPI standard for interoperability. The roundup also notes Snapchat's new event-planning features, positioning it as a competitor to Partiful, and other industry moves.
AI Revolutionizes AdTech: New Tools and Regulations Unveiled
The article discusses several developments in the digital advertising ecosystem. iSpot has introduced SAGE, an agentic AI platform with a ChatGPT-like interface aimed at helping media buyers with campaign planning. The OAAA has released a new content taxonomy for categorizing venues in programmatic Out Of Home (OOH) media buys. The IAB has established a new framework for AI regulations in advertising, though many questions remain. LiveRamp's Q4 earnings have challenged some Wall Street skepticism towards subscription software models.
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