Prediction market Kalshi and sneaker marketplace StockX are offering a new way to bet on the resale prices of in-demand sneakers and collectibles such as Labubus and Pokémon cards. In a partnership announced this week, Kalshi will use StockX data to create so-called event contracts tied to sneakers, trading cards and figurines. Users will be able to trade on outcomes such as whether an item will surpass a price threshold after release day, or predict the best-selling brands during a major shopping event like Black Friday.