Programmatic Power Struggle: Agencies and Ad Tech Vie for Margin Control

Monday, 23 March 20268 min read1 views

A growing dispute between major agency groups and ad tech platforms signals a fundamental shift in programmatic advertising. This conflict, ostensibly about transparency, ultimately concerns who captures value within the media buying ecosystem, impacting how media spend is allocated and reported.

What Happened

•A significant global agency holding company, Publicis, has escalated an audit-related conflict with The Trade Desk.
•The core issue, while framed as transparency, is largely about the distribution of financial margins within programmatic ad buying.
•This dispute highlights a broader power struggle between agencies and demand-side platforms (DSPs) over control and profitability.
•Agencies are seeking greater clarity on ad tech fees and how they impact net media costs for advertisers.
•The conflict suggests a structural re-evaluation of how programmatic value is generated and shared.
•Source: Digiday, 23 March 2026

Why It Matters for NZ Marketers

•NZ marketers rely on agencies and ad tech for programmatic execution, making this global dispute directly relevant to their local media investments.
•Potential shifts in agency compensation models or ad tech fees could directly impact NZ marketing budgets and ROI.
•Increased scrutiny on programmatic transparency could lead to better reporting and clearer understanding of actual media spend for NZ brands.
•Local agencies may face pressure to adapt their programmatic strategies and demonstrate value beyond simple media buying.
•NZ advertisers should review their programmatic contracts to understand fee structures and audit rights.
•This conflict could accelerate the adoption of more transparent programmatic solutions or direct advertiser-DSP relationships in New Zealand.

Strategic Implications

•Marketers must demand greater transparency from their agencies and ad tech partners regarding programmatic fees and supply path optimisation.
•Evaluate current programmatic setups to ensure optimal value capture and minimise hidden costs.
•Consider diversifying programmatic partnerships to reduce reliance on single vendors or agency models.
•Develop internal expertise in programmatic buying to better scrutinise agency performance and ad tech offerings.
•Prioritise partners who offer clear audit trails and demonstrate a commitment to supply chain transparency.
•Advocate for industry standards that promote fair and transparent programmatic practices.

Future Trend Signals

•Continued consolidation or re-alignment of power between agencies and ad tech platforms.
•Increased demand for 'clean room' solutions and direct advertiser access to programmatic data.
•The rise of more transparent, perhaps blockchain-enabled, programmatic supply chains.
•A potential shift towards performance-based or value-based compensation models in programmatic.

Sources

Publicis vs. The Trade Desk isn’t really about transparency – it’s about who gets the margin — Digiday

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