Why Advertising Growth Is Slowing Despite a Huge Year for Media

The first half of 2026 delivered the Olympics, a resurgent NBA Finals, the FIFA World Cup, and continued growth across streaming and digital media. Yet advertising spend grew just 4% year over year—well below the roughly 10% growth Guideline has historically seen in comparable event-heavy years.In this episode of Media Monitor, Kelly Sweeney and Sean Wright break down what Guideline’s data says about the first half of 2026, where advertising dollars are moving, which categories are gaining or cutting spend, and why major tentpole events haven’t been enough to produce a stronger market.They examine continued weakness among automakers, growth from AI and SaaS advertisers, social media’s strong first half, CTV’s continued gains, the shift of World Cup dollars from linear television toward streaming, and the surprising resilience of out-of-home advertising.Sean also looks ahead to the second half of 2026, including the effects of softer consumer spending, inflationary pressure, political advertising, and the early testing of AI search as a new advertising channel.Plus: why advertisers may be able to use AI to move faster, while consumer behavior still moves at the “speed of human.”What You’ll Hear Why U.S. advertising grew only about 4% in the first half of 2026 How major tentpole events contributed roughly 1.2–1.3 percentage points of market growth  Why automaker advertising remains under pressure  How AI and SaaS companies are supporting software ad growth  Why social advertising grew roughly 14% What’s driving CTV and streaming growth  How World Cup ad spending has shifted dramatically from linear TV toward streaming  Why out-of-home continues to gain despite weakness across other traditional formats  How consumer spending pressure could affect advertising in the second half  Why AI-search advertising still appears to be in a test-and-learn phase  Why faster advertising technology cannot make consumers make decisions faster Chapters:00:00 Welcome and Banter00:20 Lighting Nerd Out01:51 Film Lighting Origins03:40 Family Pool Drama04:15 Elle TV Recommendation05:49 First Half Ad Market08:27 Upfronts Quiet Signal09:27 Category Winners Losers12:08 Media Mix Shifts15:02 Out of Home Surge17:02 Second Half Outlook19:36 AI Search Ad Tests22:28 Speed of Human Wrap23:35 Closing and SubscribeIf you’d like access to the benchmark report or want to suggest a topic for the next part of the programmatic series, reach out to [email protected] you enjoyed this episode, be sure to follow or subscribe so you don’t miss future conversations on advertising, media strategy, and cultural marketing moments.And if you’re listening on Apple Podcasts or Spotify, a quick rating or review helps more people discover the show.