Why Your Startup Needs a Product-Market Fit Metric

No market need accounts for over 40% of startup failures. Yet most founders treat product-market fit as a feeling rather than a measurement. This analysis argues for specific, trackable metrics that turn PMF from an aspiration into an operational discipline.

For early-stage businesses, product-market fit is an obsession. Evidence of it has become an investment requirement for many Seed and Series A VC funds. It makes sense from an investor’s perspective; take a look at data from CB Insights as to why startups fail, and you’ll see that “No Market Need” tops the list, accounting for over 40% of startups that close their doors. It’s clear that finding the proverbial product-market fit is critical; however, it is unclear what exactly finding it means. If you scour the internet, you’ll find countless blog posts providing trite descriptions. In my four years in venture capital, I’ve been just as guilty of using broad and unhelpful descriptions of product-market fit when providing feedback to entrepreneurs. I would regularly pass on an opportunity citing a lack of evidence of it, but when the founder would fairly question what I needed to see, I couldn’t name a specific growth rate, number of customers, or monthly recurring revenue figure that would tip the scale. Point blank: I couldn’t quantify product-market fit. For entrepreneurs, the inability to quantify product-market fit is incredibly frustrating. Not only might it be a barrier to raising capital, but as the old adage says, “If you can’t measure it, you can’t improve it.” What’s more — product-market fit is not binary. A startup cannot simply achieve product-market fit and then rest on its laurels while growing its way to unicorn status. New competitors will enter the market, your product team will release new features, and macroeconomics factors will shift your customers’ needs and budget — all of this and more will impact product-market fit. Based on this constant fluctuation, entrepreneurs and investors need a way to not only quantify product-market fit, but to track this metric over time and with different customer segments. Enter Sean Ellis , an early employee at Dropbox, LogMeIn, and Eventbrite who has spent his career focused on growing early-stage businesses. S

By Kaitlyn Doyle at TechNexus Venture Collaborative