Metrics · Ops · Finance · Quarterly · % · Updated 2026-07-21

What is TAM Penetration Rate?

Short answer: The percentage of the total addressable market a company has currently captured.

Definition

The percentage of the total addressable market a company has currently captured.

Formula

Current revenue / Total addressable market x 100

How to measure

Divide current annualized revenue by the estimated total addressable market size for the category.

Why track it

Low TAM penetration signals a large remaining growth runway, while high penetration signals a company should look at market expansion or new products.

Example

A company with $8 million ARR against a $2 billion TAM has captured 0.4% of the addressable market.

FAQ

What is TAM Penetration Rate?
The percentage of the total addressable market a company has currently captured.
How do you calculate TAM Penetration Rate?
Current revenue / Total addressable market x 100
Why track TAM Penetration Rate?
Low TAM penetration signals a large remaining growth runway, while high penetration signals a company should look at market expansion or new products.
What is TAM Penetration Rate? Definition, formula, and growth use · Cofounderbase