Magnite (MGNI) Q2 FY26 earnings call: guidance and Q&A

What are the primary factors contributing to the mid-to high 40% growth in top 10 CTV accounts (increased supply, higher take rates, etc.)?

Michael Barrett attributed growth to increased programmatic adoption by buyers and media owners, and publishers' willingness to accept Magnite-driven programmatic demand, which carries different take rates.

“I would see generally in 2 buckets. One is just greater adoption of programmatic. It just becomes table stakes in the upfronts to be able to offer buyers the option to buy programmatically. ... And then the second bucket is a willingness to have, instead of publisher-led programmatic, publisher-sold programmatic Magnite demand, Magnite able to come in and bring demand from DSPs that they don't have relationships with, advertisers that these premium publishers haven't had relationships with.”

asked by Matthew Swanson · answered by Michael Barrett

How does Magnite's strategy (audience decisioning, AI orchestration) make it easier for ad dollars to flow to its inventory, given its vast CTV supply?

Michael Barrett explained that these initiatives decrease friction by enabling valuable first-party data to be surfaced more easily, democratizing DSP involvement, and building tools for AI advancements to work in a trusted environment.

“The idea is there's valuable first-party data on the media owner side and on the advertiser side and what's the easiest, most frictionless way to surface that inventory. ... So that definitely brings more seamless demand into the picture.”

asked by Matthew Swanson · answered by Michael Barrett

What are customer conversations like regarding agentic advertising, and can it significantly inflect growth rates when it ramps?

Michael Barrett stated that agentic is a major topic in customer conversations. While early, he believes it will be a mid-to-long term growth driver, expanding the programmatic TAM by converting direct IOs and increasing overall working media.

“It's really hard, as you pointed out, to pinpoint when the tipping point occurs. We end every big conversation with customers asking them what their prediction is for 2027 and you get a range of 0 to $1 billion in terms of for the whole industry.”

asked by Shyam Patil · answered by Michael Barrett

Will the orchestration layer be free or have a better take rate than SpringServe, and is agentic truly a new TAM for workforce automation in linear TV moving to CTV?

Michael Barrett clarified that SpringServe's take rate varies by function, and the orchestration layer will be charged for, with similar take rates to existing products. He confirmed agentic advertising expands TAM by bringing direct-sold deals into the programmatic ecosystem.

“In Orchestration, we intend to charge for it. It won't represent SpringServe, the ad server. Orchestration will do many, many, things that folks will value and we'll be able to charge appropriately for it. And to date, all of our transactions that we've done agentically have carried with it very -- a similar take rate structure to our normal suite of products.”

asked by Laura Martin · answered by Michael Barrett

Will agentic infrastructure include robust decisioning and auction components, and were there any cyclical events like the World Cup contributing to Q2 strength?

Michael Barrett confirmed that Magnite's orchestration layer will handle one-to-many agentic interactions, including RTB and auctions, leveraging existing infrastructure. He stated Q2 strength was broad-based with no one-time events, and the World Cup had only marginal impact as it was primarily linear.

“Our scale, our server farms, our cloud capabilities, most definitely, agents can do one-to-many and do RTB, but we will be the processor, we will do the transaction, we will run the auction. So it's going to be done on our rails and the interfaces will be agentic.”

asked by Robert Coolbrith · answered by Michael Barrett

Why is there a 21% delta between CTV revenue growth and 36% contribution ex-TAC growth?

David Day explained the disparity is 100% due to the managed service business, which has declined significantly (70% down) and now represents only 2% of CTV business, down from 9% a year ago. This drag will largely be lapped by early next year.

“It's 100% around our managed service business. And so that managed service business has represented like, I think, 9% of our CTV business a year ago and it represents 2% today. So it's 70% down. And that's what's driving that difference.”

asked by Barton Crockett · answered by David Day