Key Points AST SpaceMobile is building a satellite internet constellation to beam internet directly to devices. The company is in the process of building out its constellation and working with wireless carriers. It is an exciting stock, but very expensive right now. 10 stocks we like better than AST SpaceMobile › Shares of AST SpaceMobile (NASDAQ: ASTS) shot up 244% in 2025, according to data from S&P Global Market Intelligence, making it one of the top-performing stocks globally last year. An e ...