X is rolling out Smart Cashtags, a feature designed to surface real-time price quotes for stocks and crypto tokens directly inside posts, while also opening a path toward in-app trading through external brokerage partners.
The feature was first announced on January 11, 2026, when X head of product Nikita Bier said the platform was building Smart Cashtags that would let users specify the exact asset or smart contract behind a ticker symbol mentioned in a post.