What is Number of Active Sellers, and how do you calculate it?
In short – Total number of sellers who have listed or sold items in a specific period. A key marketplace metrics you should track.
Number of Active Sellers Formula
Number of Active Sellers = Count of unique sellers with activity during the period
The Number of Active Sellers indicates how many sellers are actively participating in the marketplace by listing or selling products within a given time frame. This metric helps in assessing the supply side of the marketplace.
An increasing number of active sellers can signify growth in market penetration and diversity of offerings, which can attract more buyers. Monitoring this metric helps in strategizing seller acquisition and retention efforts.
How can you find your Number of Active Sellers?
You should generally be able to calculate your Number of Active Sellers with tools you already posess. If that's not the case, signing up for an analytics tool may make sense.
Among others, twosided is one of the tools you could consider. Out-of-the-box, you'll get over two dozens marketplace KPIs and detailed tracking for your supply, demand and other factors that determine marketplace health.
Explore other metrics
Order Frequency
Average number of orders placed by a buyer within a specific period
Cross-Sell Rate
Percentage of transactions that include additional products or services
Supply-Demand Ratio
Ratio of available listings to active buyers
Listing Quality Score
A metric evaluating the quality of product listings based on predefined criteria
User Net Adds
Net increase in the number of users over a specific period