·12 min read
5 Steps to Accurately Size Your Market in 2026: how to size your market
A product launches. Crickets. Ads burn cash. The runway shrinks. The most common culprit is not a bad idea, it is a bad read on demand. CB Insights’ ongoing post‑mortems put “no market need” at or near the top reason companies fold, cited in roughly four out of ten failures. If you care about staying in business, you care about demand math. Market sizing is that math, and learning how to size your market separates confident plans from expensive guesses. CB Insights: top reasons startups fail.
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market sizing