StockX is an online marketplace that specializes in buying and selling sneakers, streetwear, electronics, and other collectibles. Founded in 2015, it operates as a transparent platform where users can track market prices and trends for various products. Each item sold on StockX is authenticated by experts to ensure its legitimacy. The platform uses a bidding system, allowing buyers to place offers and sellers to set prices. This creates a dynamic marketplace where both parties can negotiate. StockX has gained popularity among sneaker enthusiasts and collectors for its user-friendly interface and reliable service.