apply-market-size-first-screening

Apply Market-Size-First Screening

Screen for a genuinely large addressable market as the first criterion in evaluating an early-stage investment — before assessing team or product quality — since even excellent execution operating within a small market structurally caps the achievable outcome, while a sufficiently large market can produce an outsized result even from imperfect execution.

Why This Is Best Practice

Adopted by: Don Valentine, founder of Sequoia Capital, is widely documented for a market-first screening philosophy — explicitly prioritizing the size and growth potential of the addressable market over the specific founding team as the primary initial screen — a contrasting emphasis to the more founder-first framing associated with other venture investors, reflecting Sequoia's early investment decisions (including Apple and Atari) made substantially on the basis of large emerging market opportunity. Impact: Valentine's documented reasoning specifically argues that a mediocre team in a genuinely large, growing market can still produce a large outcome simply from market growth carrying the business forward, while even an exceptional team operating in a small or non-growing market faces a structural ceiling on the achievable outcome regardless of execution quality — a distinction that shapes which opportunities are worth pursuing at the earliest, highest-uncertainty stage of evaluation. Why best: At the earliest stage of company evaluation, team quality and product-market fit are both still highly uncertain and difficult to assess with confidence — but the size of the underlying addressable market is comparatively more assessable and more durably determinative of the venture-scale outcome a fund needs from its winners (see apply-ten-bagger-strategy). Screening for market size first filters out opportunities that, even in the best case, cannot produce the outsized outcome venture investing depends on, before investing further evaluation effort in team and product assessment.