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market-sizing

Estimate TAM, SAM, and SOM with top-down and bottom-up revenue forecasts.

Updated Mar 30, 2026
Search Tags:#market-sizing#market-research#sam#bottom-up#top-down#som#tam
One-click install
npx skills add https://github.com/omeragaakbas/zoyare --skill market-sizing-omeragaakbas
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: market-sizing
Source: https://github.com/omeragaakbas/zoyare/tree/main/.claude/skills/market-sizing
Command: npx skills add https://github.com/omeragaakbas/zoyare --skill market-sizing-omeragaakbas

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Clarifies the size and revenue opportunity of a market by producing structured TAM, SAM, and SOM estimates with transparent assumptions and reconciled top-down and bottom-up approaches so stakeholders can make informed product, investment, and go-to-market decisions.

Core Features & Use Cases

  • Top-down & Bottom-up Estimation: Translate industry totals into a relevant slice and cross-check with unit-economics-driven build-ups (customers × price × frequency).
  • SAM & SOM Scoping: Define the realistically serviceable market and the obtainable share in 1–3 years based on channels, product fit, and competitive position.
  • Growth Forecasts & Assumptions Mapping: Produce 2–3 year projections, enumerate key assumptions, cite sources, and highlight validation steps.
  • Use Case: Prepare investor pitch market slides, validate market entry decisions by geography or vertical, or benchmark opportunity size for new product features.

Quick Start

Estimate the TAM, SAM, and SOM for a subscription fitness app targeting US adults aged 25-44 using top-down and bottom-up methods and provide a 3-year revenue projection.

Frequently Asked Questions about market-sizing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I estimate TAM, SAM, and SOM for an investor pitch?▼

To estimate TAM, SAM, and SOM for an investor pitch, apply geographic and customer-segmentation constraints to industry totals, then scope your realistically obtainable market share over 2-3 years based on channel fit and competitive position.

What is the difference between top-down and bottom-up market sizing?▼

Top-down market sizing translates broad industry totals into a relevant market slice, whereas bottom-up sizing builds revenue estimates from unit economics like customers multiplied by price and frequency, helping reconcile differences for accurate forecasting.

How do I calculate market size for a specific customer segment and geography?▼

Calculate market size for a specific segment and geography by applying constraints to industry revenue totals and cross-checking with unit-economics build-ups to produce reconciled top-down and bottom-up revenue estimates.

Can I forecast 2-3 year revenue growth using bottom-up market sizing?▼

Yes, you can forecast 2-3 year revenue growth using bottom-up market sizing by building estimates from unit economics, enumerating key assumptions, and projecting your realistically obtainable market share over the target period.

What assumptions do I need to validate when scoping my serviceable obtainable market?▼

When scoping your serviceable obtainable market, you need to validate assumptions around product fit, channel reach, and competitive position, citing sources to support your 1-3 year obtainable share estimates.

When should I use top-down versus bottom-up approaches for market entry analysis?▼

Use top-down approaches to quickly translate industry totals into a market slice for market entry analysis, and apply bottom-up unit-economics build-ups to cross-check feasibility and reconcile differences for product strategy decisions.

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