# Category Sizing

Available In: Ask Cobalt, Jungle Scout MCP  
Decision Stage: Assess

---

Get total market size, growth rate, and competitor density in one pull. Skip the hours of manual research usually needed to size an opportunity. A single answer replaces a full afternoon of dashboard work.

## Example Questions

- _"Who are the top players in [category]?"_
- _"Is [category] growing, and how fast?"_
- _"What does the 1P vs. 3P mix look like in [category]?"_
- _"Size [category] and break it down by sub-category, which slice is growing fastest and would be the best entry point for a new SKU?"_
- _"Compare category size and growth rate for [category A] vs [category B] and tell me which is the better long-term bet."_
- _"What’s the TAM for [category], and how much of it is currently controlled by the top 3 brands vs. fragmented across smaller sellers?"_

[Connect this skill through the MCP](https://junglescout.notion.site/Jungle-Scout-MCP-Getting-Started-guide-3742362b8e5b802288bec7a7f7941566)

---

## Frequently Asked Questions

### What counts toward "category size"?
It includes total revenue, unit volume, and the count of active brands and products within the category as defined on Amazon, not just top-line sales for a handful of leaders.

### Can this size a brand-new product concept that doesn't have a category yet?
Yes. You can size the closest existing category as a proxy, or size a narrower niche within it, to estimate opportunity before a concept exists.

### How current is the growth rate?
Growth is typically shown year-over-year using the most recent trailing period available, so it reflects recent momentum rather than a single snapshot in time.

## Build a category-leading catalog with data-backed innovation.