Most marketing is built on a quiet lie: that the people seeing your work are ready to buy. They are not. At any given moment, only about 5% of your potential buyers are in the market. The other 95% are getting on with their lives. The brands that win are the ones that make an impression long before anyone is ready to spend.
This idea — the 95-5 rule, drawn from the Ehrenberg-Bass Institute and popularised by the LinkedIn B2B Institute — reorganised how I think about strategy. It explains why so much marketing feels busy and delivers so little, and why the brands that seem to "get lucky" at the moment of purchase were actually planting that outcome for years.
01The uncomfortable math of buying
Think about the last significant purchase your company made — software, an agency, a fleet, a supplier. How long was it genuinely "in market," actively comparing options? A few weeks, maybe. And how long was it not thinking about that category at all? Months. Years. That ratio holds across industries: at any moment, the overwhelming majority of buyers are out-of-market and will not purchase for a long time.
Now look at where most budgets go: almost entirely toward capturing the tiny slice of people ready to act today — the search ads, the retargeting, the "book a demo" that only speaks to someone already halfway to a decision. It is efficient in a spreadsheet and quietly ruinous over time, because it ignores the 95% who will decide who to buy from tomorrow based on how they feel about you today.
02Mental availability: being the first name that comes to mind
The reason to talk to out-of-market buyers is a concept called mental availability — the likelihood that your brand comes to mind, easily and positively, in a buying situation. It is not awareness in the shallow sense of "have they heard of us." It is memory in the useful sense of "do we show up, unbidden, at the exact moment a need appears."
When someone finally enters the market and your brand is already the familiar, trusted, obvious option, you have not won a pitch — you have skipped it. The work happened months earlier, in all the moments they were not buying, when a piece of content or a consistent message or a genuinely useful post quietly filed you under "the people who get this."
"You are not building demand for today. You are becoming the answer to a question your customer hasn't asked yet."
03What this means for your budget
The 95-5 rule does not tell you to stop capturing demand. It tells you to stop pretending capture is the whole job. Practically, that means splitting your effort across two horizons:
- Build mental availability for the 95%. Consistent brand storytelling, useful content, distinctive assets, and a message that stays recognisably you across every channel — repeated long enough to become memory.
- Capture the 5% who are ready now. The search, the clear offer, the frictionless path to buy, aimed at people already in motion.
Most brands are drowning in the second and starving the first. They can prove the 5% work — it is measurable this week — so they keep feeding it, while the reservoir of future demand quietly runs dry. Reach the 95% consistently and you do something a performance campaign never can: you make the eventual sale easier, cheaper and more likely, for years.
04Brand and performance aren't rivals
The tired debate pits "brand" against "performance" as if you must choose a team. You do not. They are the same engine on two timelines. Brand building fills the reservoir of people who feel good about you; performance marketing opens the tap when they are ready. Skip the building and your performance ads shout into an empty room. Skip the capturing and you nurture demand you never convert.
What changes when you internalise the 95-5 rule is patience. You stop judging every campaign by what it sold this week and start asking a harder question: are we becoming the brand people think of first when the moment finally comes? That is a slower scoreboard. It is also the only one that compounds.
The takeaway
Marketing that only speaks to buyers who are ready is marketing that competes on price and desperation, over and over, forever. The alternative is to earn a place in memory long before the decision — to be the obvious choice by the time anyone is choosing. Talk to the 95%. Be patient with the 5%. Build the kind of familiarity that turns a sale into a formality.