The developer of LEO satellites has been a red-hot stock over the past year.AST SpaceMobile (ASTS 0.41%) took investors on a wild ride after it went public by merging with a special purpose acquisition company (SPAC) on April 7, 2021. The low earth orbit (LEO) satellite developer's stock started trading at $11.63 on the first day, sank to around$2 this April, and skyrocketed to a record high of $38.60 on Aug. 19.As of this writing, AST's stock trades at about$26 with a market cap of $4.2 billion, which is ...