spo Featured Passthrough Auctions: Rethinking Supply Path Optimization Last August, I wrote a post introducing the concept of Supply Path Optimization [https://bokonads.com/preventing-bad-behavior-in-header-bidding-supply-path-optimization/] to address the commoditization of programmatic supply access due to header bidding. Over the next two quarters, I worked closely with a team at AppNexus that did a domain-by-domain analysis of supply paths