Wall Street sees an asymmetric opportunity in this space stock.A day after AST SpaceMobile (ASTS 23.95%) stock got a big boost from the company solidifying a key partnership, Wall Street is rallying to the cause. Shares of the space communications company got a price target boost and had traded up 19% by 11 a.m. ET.Is AST a potential five-bagger stock?AST SpaceMobile is attempting to build a business that links smartphones to its satellite-based network. The technology would allow for voice calls and data c ...