X launched its U.S. Cashtag Partner Program on September 15, connecting users with Coinbase, Gemini, Kraken, Interactive Brokers and Moomoo for crypto and stock trading. Tapping a cashtag now displays live prices, related discussions and a Trade button that redirects users to a partner platform for execution, while X remains outside the brokerage transaction itself. Reports say the program processed roughly $1 billion in trading volume during its first three days. The initiative builds on smart cashtags launched April 14 and advances Elon Musk's long-standing vision of X as an everything app. X already holds money transmitter licenses across multiple U.S. states and previously introduced peer-to-peer payments. The model gives partner exchanges and brokers a distribution channel inside X's timeline, while potentially increasing exposure to impulsive trading, hype cycles and pump-and-dump schemes. Kraken's support for nearly 2,400 crypto assets could give lesser-known tokens a direct route from viral posts to trading interfaces, and regulators may examine whether the referral system creates advisory or promotional liability.