Also called: NSM, North star
TL;DR
The single metric that best captures the core value the product delivers and the long-term success of the business.
A North Star Metric is the one number a startup uses to align product, growth, and engineering on the same outcome. Good NSMs measure delivered value (rooms booked at Airbnb, songs played at Spotify, messages sent in Slack), not vanity (sign-ups, page views, MAUs).
The NSM should be a leading indicator of revenue and a lagging indicator of product quality. Most startups eventually decompose it into an input metric tree so each team can see how their work moves the top number.
Airbnb's north-star metric is 'nights booked', not GMV, not sign-ups. It captures both supply (hosts list a room) and demand (a guest pays to stay) in a single number, and every team can articulate how its work moves it up or down.
Strong decks name the NSM explicitly on the KPI slide and show its trend, rather than listing many disconnected metrics.
North Star Metric shows up most often in these scoring rubrics and investor profiles, jump straight to who cares about it and how to pitch them.
A metric that looks impressive in a deck but doesn't reflect the underlying health or growth of the business.
The specific in-product event where a user first experiences the core value of the product and becomes likely to retain.
Grouping users by sign-up period and tracking each group's behavior over time to spot trends invisible in aggregate metrics.
The point at which a product satisfies a market well enough that demand pulls the company forward instead of the team pushing it.
A chart showing what fraction of a cohort is still active week-by-week or month-by-month after sign-up.
Long-form deep dives on the slides North Star Metric most often shows up on.
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