# Market Sizing Analysis

> Calculate TAM/SAM/SOM for market opportunities using top-down, bottom-up, and value theory methodologies. Use this skill when sizing markets, estimating addressable revenue, validating market opportunity for a new venture, or building investor-ready market analysis for a startup pitch or business plan.

Source: https://skillsagentes.com/skills/wshobson/agents/market-sizing-analysis
Repository: https://github.com/wshobson/agents
Author: wshobson
License: MIT
Updated: hace 2 meses
Context cost: 76 tok installed, 619 tok once triggered, 7.8k tok with every bundled file
Bundle: 4 files, 31 KB
Permissions requested: none declared

## Install

```bash
npx -y skills add wshobson/agents --skill market-sizing-analysis --agent claude-code
```

## What it does

- Calcula TAM/SAM/SOM para oportunidades de mercado usando metodologías top-down, bottom-up y de teoría del valor
- Explica cuándo aplicar cada metodología según el tipo de mercado y etapa de la startup
- Aporta ejemplos concretos de cómo definir TAM, SAM y SOM para un producto

## Use it when

- Al dimensionar un mercado o estimar ingresos direccionables
- Al validar la oportunidad de mercado para una nueva iniciativa
- Al construir un análisis de mercado listo para inversores en un pitch o plan de negocio

## What triggers it

- "Calcula el TAM, SAM y SOM para mi startup de software de email marketing"
- "Necesito un análisis de tamaño de mercado para mi pitch deck a inversores"
- "Ayúdame a estimar el mercado obtenible con un enfoque bottom-up"

## Before you install

- Requiere leer references/details.md para patrones detallados y ejemplos completos cuando la guía principal no baste.

## Files

- SKILL.md — 2 KB
- examples/saas-market-sizing.md — 10 KB
- references/data-sources.md — 9 KB
- references/details.md — 9 KB

## SKILL.md

Reproduced verbatim from wshobson/agents under MIT. This section is the upstream document and is in English.

# Market Sizing Analysis

Comprehensive market sizing methodologies for calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for startup opportunities.

## Overview

Market sizing provides the foundation for startup strategy, fundraising, and business planning. Calculate market opportunity using three complementary methodologies: top-down (industry reports), bottom-up (customer segment calculations), and value theory (willingness to pay).

## Core Concepts

### The Three-Tier Market Framework

**TAM (Total Addressable Market)**

- Total revenue opportunity if achieving 100% market share
- Defines the universe of potential customers
- Used for long-term vision and market validation
- Example: All email marketing software revenue globally

**SAM (Serviceable Available Market)**

- Portion of TAM targetable with current product/service
- Accounts for geographic, segment, or capability constraints
- Represents realistic addressable opportunity
- Example: AI-powered email marketing for e-commerce in North America

**SOM (Serviceable Obtainable Market)**

- Realistic market share achievable in 3-5 years
- Accounts for competition, resources, and market dynamics
- Used for financial projections and fundraising
- Example: 2-5% of SAM based on competitive landscape

### When to Use Each Methodology

**Top-Down Analysis**

- Use when established market research exists
- Best for mature, well-defined markets
- Validates market existence and growth
- Starts with industry reports and narrows down

**Bottom-Up Analysis**

- Use when targeting specific customer segments
- Best for new or niche markets
- Most credible for investors
- Builds from customer data and pricing

**Value Theory**

- Use when creating new market categories
- Best for disruptive innovations
- Estimates based on value creation
- Calculates willingness to pay for problem solution

## Detailed patterns and worked examples

Detailed pattern documentation lives in `references/details.md`. Read that file when the navigation tier above is insufficient.

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Skills Agentes — https://skillsagentes.com/skills/wshobson/agents/market-sizing-analysis