Driving 50%+ CPA Reduction with Smart Supply and PubMatic
How supply-side intelligence and premium supply transformed performance for a leading insurance brand
About the case study
An insurance brand needed to improve performance and lower CPA, but their DSP-led strategy wasn’t delivering. Despite high impression volume, conversions were inefficient and traffic quality was inconsistent.
Smart Supply partnered with PubMatic to shift the focus to supply-side deals. By activating premium deal IDs through PubMatic’s Connect platform, the campaign filtered out low-performing inventory, prioritized affinity-aligned audiences, and applied real-time optimizations based on outcomes—not proxies.
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Discover how AI-powered supply helped our insurance client slash CPA by more than 50% using Smart Supply and PubMatic’s Connect.
-50% + CPA
Through premium supply and real-time optimizations
99.9% Premium Inventory Coverage
Enabled by Smart Supply’s SSP partnerships
Ongoing In-Flight Optimization
Continuous deal-level adjustments based on live performance data
Affinity-Aligned Audiences Activated
Reached users near insurance renewal or claim intent
What This Case Reveals About Supply-Side Strategy
This case is a clear example of why programmatic strategies must evolve beyond DSP-only thinking. Smart Supply offers a premium, real-time approach that:
Filters inventory before the bid—ensuring cleaner, more intent-rich impressions
Leverages SSP partnerships (like PubMatic) to tap into direct supply paths
Improves campaign efficiency by cutting bid bloat and invalid traffic
Aligns media spend with business KPIs, not just proxy metrics like CTR
As supply path optimization becomes a key concern for 2025, Smart Supply is helping agencies future-proof their buying approach with transparency, efficiency, and scale.
Smart Supply’s outcome-first approach aligned perfectly with our mission at PubMatic: to deliver scalable, high-quality inventory that drives measurable results. This campaign proved that smarter supply strategy can directly lower CPA without sacrificing reach.
