CMO TLDR: OpenAI, Magnite, and the Agentic Ad Stack Goes Live
The AI Ad Economy
OpenAI Opens the ChatGPT Ad Spigot
OpenAI is moving its ChatGPT ads pilot out of the lab, launching a beta self-serve Ads Manager in the US, adding cost-per-click bidding, and rolling out a Conversions API plus pixel-based measurement. The company is routing demand through agency partners Dentsu, Omnicom, Publicis, and WPP, plus tech partners Adobe, Criteo, Kargo, Pacvue, and StackAdapt. With ChatGPT users actively comparing options and making decisions inside the chat window, OpenAI is staking out search-style intent monetization without the search-style interface, a direct shot at Google's core revenue engine.
Yahoo Hands Campaign Orchestration to Kochava
Yahoo and Kochava launched a dedicated Yahoo DSP workspace inside Kochava's StationOne platform, pitching a system of pre-built agents and connectors that lets buyers plan, execute, and optimize across tools rather than within a single DSP. Kochava CEO Charles Manning compared StationOne to Slack for ad ops, a pitch that mirrors moves from The Trade Desk with Pacvue and Skaai, plus parallel launches from Google and Meta. The directional signal is clear, as agentic layers begin sitting on top of the programmatic stack, the strategic question shifts from how ads are bought to who, or what, is doing the buying.
Criteo Drops 20% as Agentic Bet Stalls
Criteo shares fell 20% Wednesday after Q1 revenue slid 6% to $424.6 million and profit collapsed from $40 million to $8.6 million year over year, with management cutting full-year guidance. Two of its largest performance customers, widely understood to be Uber Eats and Target Roundel, pulled at least $75 million in committed spend, while ad budgets continue consolidating into Google, Meta, and Amazon. Criteo is now the first and only ad tech partner in the ChatGPT Ads beta and has onboarded more than 1,000 advertisers, but agentic revenue has yet to materialize at the scale needed to offset the macro and customer concentration headwinds.
CTV and Streaming
Magnite Posts CTV Beat, Picks a Fight With Google and TTD
Magnite reported Q1 revenue of $164.4 million, up 6% year over year, with CTV contribution ex-TAC up 30% and now over half of total, helped by 80% growth in March Madness revenue. The company raised its full-year adjusted EBITDA margin guidance to at least 35.5%, and CEO Michael Barrett told investors Magnite expects upside from the pending Google ad tech remedies, where its win rate against Google is currently very low. On The Trade Desk's OpenPath, Barrett was blunt, saying the OpenPath extinction event is coming and Magnite is still here, while signaling the company plans to charge for the AI tools currently bundled into its platform.
Social Video Outpaces CTV for the First Time
US digital video ad spending will surpass $80 billion in 2026, growing 11% year over year and roughly 20% faster than the total ad market, according to IAB's new spend and strategy report. Social video is now expanding 13% versus CTV's 11%, the first time social has outpaced connected TV, driven by AI-powered personalization and creator economy investment. Targeting overtook content quality as the top buying criterion (up 10 points year over year), and 66% of digital video buyers are already live, testing, or planning agentic AI use in 2026, signaling that the operational shift is well underway.
Identity, Privacy, and Trust
The Trade Desk's UID2 Has an Audit Problem
A CTV publisher ran a broken UID2 integration for an extended period without a noticeable change in demand or CPMs, and The Trade Desk, which serves as the de facto UID2 administrator, did not flag it. Sources at Prebid and former TTD insiders told AdExchanger that no third party currently audits whether publishers are passing accurate, consented data into UID2 fields, raising the prospect that FAST channels without first-party email logins are generating UID2s from third-party broker data. The episode lands as TTD pushes UID2 as the post-cookie identity standard, and it suggests buyers may be paying premium CPMs for IDs whose underlying data quality nobody is verifying.
FTC Settles Four-Year Kochava Privacy Case
The FTC and Kochava reached a settlement that bars the data broker and its subsidiary Collective Data Solutions from selling, licensing, or sharing sensitive location data without affirmative express consumer consent, ending a fight that began in 2022 after the Dobbs decision. Kochava must now stand up a dedicated sensitive-locations program, vet data suppliers for consent, allow people to request the names of any business that received their location data, and delete data on a set schedule. The settlement creates a concrete federal benchmark for what counts as consented location data, raising the compliance bar for every ad tech vendor that touches mobile location signals.
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Magnite Reports First Quarter 2026 Results
Magnite posted Q1 revenue of $164.4 million, contribution ex-TAC of $160.9 million (up 10%), and adjusted EBITDA of $42.9 million, with CTV contribution ex-TAC up 30% and now exceeding half of total. The company raised its full-year adjusted EBITDA margin target to at least 35.5% and lifted free cash flow growth guidance into the mid-30% range.