Home The Big Story The Media Spend Skim

The Media Spend Skim

SHARE:
Logo for AdExchanger's Big Story podcast, with journalistic insights on advertising, marketing and ad tech

Agencies increasingly make money through principal-based buying, a practice that is now spilling into the ad tech world.

In recent weeks, The Trade Desk and agencies have been tussling over fee structures, and WPP Media and Dentsu exited OpenPath.

This week, Publicis stopped recommending The Trade Desk to clients, which it claimed was because it found TTD was charging hidden fees beyond what was in its contract – a story eerily reminiscent of the one Sarah Caputo told a couple of weeks ago as our guest on the Big Story. Hired to analyze a smaller agency’s contract with The Trade Desk, she discovered fees of which the agency wasn’t aware.

What does it mean if companies must charge opaque fees in addition to the upfront fees charge? And if there are only so many fees to charge, is that why ad tech companies and agencies are tussling over who gets the take?

Prompted by this story, as well as WPP Media’s lawsuit with an employee who said he was fired after raising concerns about rebates, AdExchanger Senior Editor James Hercher discusses how agencies are rebranding principal-based buying, hiding it in earnings reports with names like “non-product-related income” and “purchase risk media deals.” Instead of disappearing, the practice is morphing – and history suggests it will transform, not go away, under scrutiny.

The rise of sell-side agents

Then, we discuss the nascent trend of publishers and ad tech companies using AI to optimize their internal processes. For example, some are building sell-side agents so AI can help them respond to RFPs, identify pockets of high-value inventory and match inventory with a client’s bespoke needs.

AdExchanger News Editor Andrew Byrd, who spoke to publishers and an ad tech company about their early tests to build sell-side agents, walks us through the problems they are trying to solve and how it’s going so far.

Must Read

Upfronts Day One: Publishers Jostle For Position As Performance Drivers

And that’s a wrap on Day One of upfronts 2026! AdExchanger Senior Editors Alyssa Boyle and Victoria McNally traversed the island of Manhattan on Monday to scope out upfront presentations by NBCUniversal, Fox and Amazon.

Viant Sees A Growth Wave Coming, But First Marketers Must Really Ditch Walled Garden Ad Tech

Viant’s modest growth story took a backseat to a far louder claim: that fed-up advertisers are finally ready to ditch the rigged economics of Big Tech’s walled gardens.

Amazon’s Interactive CTV Ad Suite Now Includes Creative Optimization

Amazon Ads expects this year’s television upfronts to be an outcomes-focused affair. That may explain why the company preempted its Monday evening presentation by announcing the launch of a new ad product called Dynamic TV Creative.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters

Is Agentic Commerce An Oasis Or Mirage?

For companies like Shopify, Criteo and Instacart – and even for giants like Amazon and Walmart – figuring out if the agentic oasis is real or a mirage is their priority No. 1.

PubMatic’s Agentic AI Is Going Beyond Direct Deals

PubMatic has run more than 30 fully autonomous, end-to-end agentic campaigns through the SSP’s AgenticOS platform, in addition to more than 1,000 direct publisher deals.

The Trade Desk Has A Grand Vision, But Needs A New Breed Of CMO To Make It A Reality

TTD CEO Jeff Green laid out the DSP’s plan for winning in a new world of advertising that – AI aside – necessitates major changes in how marketers behave.