Palo Alto – October 1, 2025 – The first time I attended AdExchanger’s Programmatic I/O conference was its inaugural run in 2013 in San Francisco. Back then, programmatic advertising promised to be the future of digital media in a world still dominated by agencies and Google. The conversations centered on automation: replacing insertion orders, reducing friction, and enabling real-time precision targeting.

Fast-forward to 2025’s Programmatic I/O conference, and more than 60% of all U.S. advertising is now transacted programmatically, with television, retail media, and even traditional channels being transformed. But with maturity comes new challenges. Concerns about inventory quality, the limits of measurement and attribution outside of walled gardens, ongoing FTC and state privacy scrutiny, and the influence of triopoly power of Meta, Google, and Amazon looms large in the industry.

The conference itself has shifted: the startup-heavy expo floor of 2013 has been replaced by 10 or so publicly traded, scaled companies, while the audience now includes major brands and media companies, not just adtech specialists. Missing, however, were OpenAI, Anthropic, and Meta — raising the question of whether new AI leaders will eventually reshape programmatic advertising for a world that spends $700B annually on digital media.

From the Wall Street perspective, The Trade Desk (TTD) has lost its “beat and raise” luster, Amazon DSP is gaining ground, and the industry wonders if consolidation around identity and retail media networks could spark the next M&A wave — with speculation even about TTD acquiring LiveRamp. At the same time, Magnite pushed Supply Path Optimization (SPO) 2.0, stressing transparency through transaction IDs, and Tatari argued that the future of CTV could bypass DSPs altogether, moving toward more direct buyer-publisher connections.

AI was a through-line at the conference: Gartner framed AI’s role evolving from tool → agent → influencer, while others forecast agentic AI commerce within quarters, not years. Speakers stressed that data hygiene, trust, and customer consent will be as important as technical capability in determining whether AI enhances or undermines advertising.

Perhaps the clearest shift is that programmatic has become the plumbing, not the strategy. Every brand and publisher now depends on it, whether through CTV, retail, or emerging audio and interactive formats. The promise of automation in 2013 has been realized — but in 2025, the conversation is less about if and more about how well programmatic can deliver value in a complex, AI-driven, privacy-constrained marketplace.

Programmatic I/O 2025 underscored that the industry has reached its adulthood — resilient, indispensable, but facing new identity questions. The next decade won’t be defined by adoption, but by whether programmatic can reinvent itself again to balance scale, trust, and creativity in a rapidly evolving AI digital economy.

Digital Advertising M&A Themes Emerged from the Conference:

1. Identity & Data Consolidation – Speculation around The Trade Desk acquiring identity and data; and consolidation in retail media networks and identity measurement seen as catalysts for the next M&A wave.
2. Regulatory Divestitures – DOJ’s case against Google raises the possibility of forced AdX/DV360 spin-offs, a structural event that could reset SSP/DSP dynamics.
3. CTV & Supply Path Reshaping – Magnite’s SPO 2.0 and Tatari’s push for direct buyer–publisher relationships point to consolidation opportunities in CTV, clean rooms, and publisher tech.
4. Investor Pressure Driving Strategy – With TTD down 61% YTD and Amazon DSP expanding, public market expectations may accelerate strategic deals with TTD and a variety of adtech stocks to regain growth momentum.
5. AI as the Next Deal Driver – Programmatic players are evaluating acquisitions of AI-native companies to capture personalization, planning, and automation capabilities missing from legacy adtech stacks.