What happened
DemandScience published its 2026 State of Performance Marketing report in December 2025, based on a survey of 750 senior B2B marketing leaders conducted by independent research firm TrendCandy. The report set out to measure what it calls the marketing data mirage: a gap between encouraging-looking campaign metrics, clicks, downloads, behavioral scores, and the revenue those signals actually predict. The topline number is stark: 87% of organizations report that their marketing investments produce unreliable or inflated intent signals, and roughly a quarter of total marketing spend goes toward activity that never drives a measurable outcome. The report ties part of the gap to AI tooling itself, which it says is amplifying performance noise, more signals, scores, and dashboards, without a matching increase in signal quality or sales team trust in what those numbers mean. Marketing leaders surveyed said the mirage shows up most in board and pipeline reviews, where a quarter that looked strong on activity metrics still missed its bookings target.
Why intent signal reliability is the real buyer behavior story
MagnetizeX builds founder visibility systems for B2B firms.
Buying committees haven't gotten more anonymous by accident, they've gotten more anonymous while the tools meant to track them multiplied. Every platform a founder buys promises to surface intent, but if 87% of marketing leaders don't trust their own signals, the practical effect is a sales team chasing accounts a dashboard flagged as hot that were never actually close to a decision. The fix isn't stacking another intent tool on top of the ones you already distrust, it's cutting the list of signals your team acts on down to the two or three that have actually preceded closed deals in your own pipeline history. That discipline matters more as buying groups grow, since a noisy signal now gets amplified across a committee of stakeholders instead of just misleading one rep.
- Pull your last 10 closed-won deals and find the real signal.Before buying or renewing any intent data tool, check what those accounts actually did in the 30 days before they engaged: pricing page visits, competitor comparisons, a specific search term. Treat only that pattern as a validated signal worth acting on going forward.
- Cut alerts tied to unvalidated scores.Turn off or deprioritize any lead score or intent alert your team can't trace to a real closed deal in the last two quarters. A flood of unranked “hot account” notifications is what trains reps to ignore the tool entirely, signal and noise alike.
- Ask any intent vendor for their own conversion rate, not just coverage.Coverage numbers, how many accounts they track, are marketing. Ask what percentage of the accounts they flagged as in-market actually closed with any vendor in that category within 90 days, and get that number in writing before renewing.
By the numbers: The same report found roughly a quarter of total marketing spend fails to drive any measurable outcome, and AI-generated content and outreach are named as the fastest-growing source of the noise.
What to do this week
Pull your CRM's last two quarters of closed-won deals and manually check which intent signals, if any, actually preceded each one. Bring that list to your next pipeline review and propose killing any paid intent-data feed or lead-score alert that doesn't show up on it, then redirect that budget to the one signal source you can already prove works, even if it's a manual one.