What Is a One-Product Marketplace?

A one-product marketplace is a platform where all participants sell the same core product, without offering different categories or types of services.

PassionStocks is a one-product marketplace where creators exclusively sell shoutouts on their Instagram Stories. No other products are offered—the entire platform is built around this single, scalable format.

However, prices vary from creator to creator because shoutout prices fluctuate in real time—based on engagement, demand, and sales performance—reflecting the unique value and perceived strength of each personal brand.