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Also known as: TAM SAM SOM, addressable market

Market Size

ConceptualMetricsStrategies

Definition

Market Size: Market size estimates the revenue opportunity for a product. TAM (Total Addressable Market) is total potential revenue. SAM (Serviceable Addressable Market) is the portion you can target. SOM (Serviceable Obtainable Market) is realistic near-term capture.

Example Usage

β€œOur TAM is $10B, SAM targeting SMBs is $2B, and we're aiming for 5% SOM of $100M in five years.”

Common Misconceptions

TAM is your opportunity. SOM is more relevant for planning and fundraising.
Top-down estimates are sufficient. Bottom-up analysis is more credible to investors.
Market size is static. Markets expand and contract based on technology and behavior changes.

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