The ROI Case for Signal-Based Marketing in Wealth Management

Behavioral Intelligence Brief
Written By Marla Sofer

Behavioral Intelligence Brief #15

Marketing budgets are no longer growing to match expectations, and the gap between the two is becoming the defining problem of the CMO role.

Gartner's 2026 CMO Spend Survey, based on 401 marketing leaders across North America and Europe, found that marketing budgets remain effectively flat at 7.8% of company revenue, 18% lower than the average allocation just four years ago. Meanwhile, the same survey found that 20% of CMOs missed their customer acquisition goals this year, up from 13% the year before, and 62% said an inability to meet growth expectations would directly result in further budget cuts. Marketing isn't being asked to do more with more. It's being asked to do more with a shrinking share of the pie, and the consequence of falling short is a smaller pie next year.

The Old ROI Argument No Longer Works

For years, the standard defense of a marketing budget was volume: more leads, more impressions, more pipeline generated. Gartner's own data shows that argument losing ground fast. Fifty-six percent of CMOs say they lack the budget required to execute their strategy, and 57% say they lack the talent to do it. Boards and finance teams facing that gap aren't asking for more activity. They're asking which activity actually produces revenue, and volume-based reporting increasingly fails to answer that question in a way anyone upstream believes.

What the ROI Case Actually Looks Like

McKinsey's cross-industry research on personalization gives the clearest quantified answer available for what does move the number. Companies that personalize well reduce customer acquisition costs by as much as 50%, lift revenue by 5 to 15%, and improve marketing ROI by 10 to 30%. The same research found that companies with faster growth rates derive 40% more of their revenue from personalization than slower-growing peers. That is not a marginal efficiency gain. It's a compounding advantage that widens every year a firm doesn't close the gap.

Bain and Company's research on enterprise AI strategy explains why the advantage compounds. As AI models commoditize, proprietary data becomes the durable moat, and firms building real data advantages now become structurally harder to compete against later. Signal-based marketing, built on real behavioral data a firm actually owns, is exactly the kind of proprietary asset that produces a widening advantage instead of a one-time bump.

Why Wealth Management Feels This Acutely

Charles Schwab's 2026 RIA Benchmarking Study found organic growth already declining industry-wide, even as headline AUM growth mostly tracked the broader market. That is the wealth management version of the same problem Gartner found industry-wide: activity and spend have not slowed, but the return on both has. A firm that cannot show its board or its investors that marketing spend converts into real organic growth, not market-driven AUM, is exposed to exactly the kind of budget cuts Gartner's survey found coming.

The Accountability Case for Signal, Not Volume

If the board's question is which activity actually produces revenue, volume-based reporting has no good answer. Signal-based marketing does. A prospect scored on real, volunteered readiness produces a metric that ties directly to conversion, which ties directly to the ROI number every CMO is now required to defend.

This is the ROI case Knomee is built to support: a way to show, in numbers a board will accept, that marketing spend is going toward prospects who were actually ready to convert, not just prospects who existed somewhere in the funnel.

Sources

Marla Sofer https://knomee.com
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