May 2026

The Market Signals Digest

A forward-looking digest on the shifts shaping CTV, contextual advertising, and programmatic performance right now.

CTV buyers are facing tighter inventory conditions, growing transparency pressure, and more scrutiny around where campaigns actually run.

At the same time, advertisers are demanding stronger signals to guide decisioning as political spending accelerates and streaming environments become more fragmented.

Here’s what smart buyers are paying attention to right now.

Transparency gaps are becoming harder to ignore

Peer39's latest CTV Truths report found that 60% of CTV bid requests still lack usable program-level signals, limiting visibility into what content campaigns actually run alongside.

As buyers demand greater accountability across streaming environments, transparency is becoming a bigger factor in both optimization and supply decisions.

Read the CTV Truths Report

Political spending is tightening inventory

Nearly $10B in projected political spend and more than $2.5B flowing into CTV is expected to increase pricing pressure, inventory competition, and adjacency concerns throughout the election cycles.

Even advertisers outside of politics are preparing for tighter market conditions across premium streaming inventory.

Explore the Political Advertising Guide

Completion rate is not longer enough

Strong completion metrics alone do not guarantee campaign quality. Advertisers are increasingly looking beyond surface-level KPIs to evaluate supply quality, contextual relevance, and whether campaigns are running in legitimate premium CTV environments.

Dive deeper into CTV quality signals

Strengthening transparency across CTV supply

As buyers push for greater transparency across streaming environments, more advertisers are prioritizing supply paths with stronger contextual signals and clearer visibility into where campaigns actually run.

Following Peer39’s partnership with Vesta Stream Studios, advertisers can access deeper program-level contextual intelligence across premium OTT inventory, helping improve content classification, supply transparency, and confidence in CTV campaign environments.

Discover the partnership

Adapting to changing CTV market dynamics

As political spending reshapes inventory dynamics across CTV and web, advertisers are using stronger contextual and geographic signals to maintain greater control over where campaigns appear.

Peer39's Political Geo-Targeting categories help political advertisers identify where spend can have the greatest impact through 14 actionable zip-level categories, while advertisers across every industry are using issue-level controls, contextual transparency, and post-buy analytics to navigate adjacency concerns and tightening inventory conditions.

Learn how buyers are navigating political-season CTV

Improving campaign health with stronger CTV signals

More advertisers are using the Peer39 CTV Quality Score as an early indicator of campaign health, helping teams quickly evaluate viewing environments, supply quality, audience reach, and program-level performance while campaigns are still live.

As pricing pressure increases throughout Q3 and Q4, buyers are leaning on the upgraded Peer39 CTV Analytics Dashboard to identify inefficiencies faster, validate where impressions actually run, and optimize campaigns with greater precision and confidence.

See the upgraded CTV Analytics Dashboard

Proof: Better signals. Better CTV outcomes.

Tight audience targeting and strict programming requirements often force advertisers into a tradeoff between scale, efficiency, and transparency in CTV. StackRabbit and John Moore Services used Peer39 contextual pre-bid strategies to improve media efficiency while maintaining stronger control over where campaigns appeared. See how the strategy came together. Read the case study.

Lower cost per site visit

More efficient vs. CTV average

More efficient vs. Deal IDs

What this means for you

CTV performance is no longer just about reach.

The advertisers seeing stronger outcomes right now are the ones improving the quality of their decisioning signals, gaining better visibility into content environments, and building more intentional contextual and supply strategies.

As transparency expectations and inventory pressure continue to rise throughout 2026, understanding where ads actually run will matter more than ever.