September 21, 2026 · CTREX Team
SPO in 2026: Why Buyers Are Shortening Supply Chains
Supply Path Optimization (SPO) is becoming a key development area for programmatic advertising in 2026. Advertisers and agencies are striving to make supply chains more transparent, reduce intermediaries, and more effectively control advertising budgets.
According to the ANA Programmatic Transparency Benchmark (Q1 2026), the market continues to move toward consolidation between SSPs and resellers. Increasing attention is being paid to direct and transparent purchasing paths (Direct Supply Path), as well as the correct transfer of information through sellers.json and schain.
Why is SPO important for publishers?
Each additional link in the supply chain can mean additional commission and a smaller share of the advertising budget ultimately going to the publisher.
For publishers, this means a simple thing: the more transparent and efficient the path from the advertiser to the site, the greater the opportunity to preserve the true value of their ad inventory.
An optimized supply chain also helps make inventory more understandable and attractive to buyers, who increasingly evaluate not only the audience and quality of the platform, but also the ad delivery process itself.
How does CTREX help in the SPO era?
CTREX was created to simplify the path between the publisher and programmatic demand.
Direct access to demand CTREX minimizes unnecessary intermediaries, helping to direct more advertising demand directly to the publisher's inventory.
Supply chain transparency Using industry standards and correctly identifying supply chain participants helps make ad inventory more transparent for buyers.
Simple integration A single tag allows you to connect a site to an ad network without a complex technical process and numerous separate integrations.
What's next for programmatic?
SPO isn't just a way to reduce the number of SSPs. It's a market transition to a more transparent model, where each supply chain participant must create clear value.
For publishers, this is an opportunity to rethink their current monetization: which intermediaries truly add value, how many links lie between the website and demand, and what portion of the advertising budget ultimately converts into revenue.
A transparent supply chain, effective demand, and a minimum number of unnecessary links are among the key principles of modern programmatic monetization.
Want to optimize your website monetization and access programmatic demand through CTREX? Connect to CTREX.