📖 Step 1: Planning & Product#18 / 291

TAM/SAM/SOM

Total/Serviceable/Obtainable Market

📖One-line summary

Total market → serviceable market → the slice you can realistically capture.

Example

Market sizing in three tiers

TAM (total market)
Online education market $300B
SAM (serviceable)
Coding education market $20B
SOM
Korean beginners
$500K

Vibe coding prompt examples

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Calculate TAM, SAM, and SOM for the Korean online education market. Include estimation rationale and data sources.

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Calculate TAM/SAM/SOM for a B2B HR solution. Use a bottom-up estimate based on the number of Korean companies and average subscription price.

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Build a TAM/SAM/SOM slide for an investment IR deck. Also show market growth trends as a graph.

Try these prompts in your AI coding assistant!