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Business & Strategy

Product-Market Fit

PMF

Portrait of Robert Klimant, co-founder of Roelu Studio
Robert KlimantCo-founder

What is Product-Market Fit?

Product-Market Fit, or PMF, is the point at which a product satisfies a strong market demand. The term was popularized by Marc Andreessen, who described it as being in a good market with a product that can satisfy that market. PMF is not a milestone you check off. It is a state the business is either in or chasing — measured by retention, organic growth, and how hard customers fight to keep using the product.

Why it matters

Most early-stage companies do not have a marketing problem. They have a product market fit problem dressed up as a marketing problem. Spending on ads, hiring a CMO, or rebuilding the website will not fix a product the market does not want. Before PMF, growth is a grind and every dollar feels expensive. After PMF, the same dollar buys ten times the return. The job before fit is to learn fast. The job after is to pour fuel. Confusing those two stages is how scale-ups burn runway and end up rebuilding from scratch.

How it works

Signal beats survey. Watch what customers actually do, not what they say in interviews. Look at retention curves — do users come back week after week, or fall off after one session. Look at organic growth — are people referring others without a referral program in place. Run the Sean Ellis test: ask current users how disappointed they would be if the product disappeared tomorrow. If forty percent or more say very disappointed, you likely have fit. If not, keep iterating on the product, the audience, or both. Once fit lands, the question changes from what to build to how to scale the engine you just found.

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