Kelly and Sean break down Guideline’s new quarterly programmatic benchmark report, explain how DSPs fit into the media buying ecosystem, and share the latest trends in programmatic, CTV, and streaming.

Programmatic advertising plays a growing role in digital media buying, but it is still one of the more misunderstood parts of the industry. In this episode, Kelly and Sean use Guideline’s newly announced quarterly programmatic benchmark report as a starting point for a practical discussion on what programmatic actually is, how DSPs work, and what the latest benchmark data suggests about the market.

They begin by defining programmatic at a high level: automated buying and selling of digital media, often built around audience targeting, pricing efficiency, and near real-time optimization. From there, Sean explains why this episode focuses specifically on DSPs, or demand-side platforms, which are the tools buyers use to purchase programmatic inventory.

The conversation then turns to the benchmark findings. Sean shares that programmatic saw very strong growth through 2024, though the pace slowed through 2025 as the market matured and economic pressure weighed on ad spend. They discuss how much of that activity is tied to streaming and connected TV, and why the growth pattern looks different now that most large streaming platforms already offer ad-supported products.

They also look at category-level movement, with telecom, insurance, and quick-service restaurants increasing programmatic spend, while categories such as alcohol, toys, and games have pulled back. Kelly and Sean then walk through the current split between programmatic and direct buying, why programmatic has remained near 30% of market activity, and why Sean expects that share to move higher in 2026.

The episode closes with a closer look at buying methods inside the programmatic ecosystem, including private marketplaces, programmatic guaranteed, and the open marketplace, along with a request for listener feedback on where the programmatic series should go next.

Key topics include:

• What programmatic advertising means in practice
• How DSPs function in digital media buying
• Why Guideline launched a quarterly programmatic benchmark report
• Growth trends in programmatic across 2024 and 2025
• The link between programmatic growth and streaming / CTV
• Which advertiser categories are increasing or reducing spend
• The current split between programmatic and direct buying
• Private marketplaces, programmatic guaranteed, and open marketplace buying

Chapters

00:00 Spotify reviews and why the episode topic matters
00:50 Guideline’s new programmatic benchmark report
02:22 What programmatic advertising means
03:48 DSPs and how programmatic buying works
06:01 Global programmatic growth trends
08:40 Categories gaining and losing spend
11:05 Programmatic vs direct buying share
12:28 Sean’s 2026 outlook
13:07 Private marketplaces, guaranteed deals, and open marketplace
16:13 Invitation for listener feedback on the series

If 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 press@guideline.ai.

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