AST SpaceMobile is trading at $54.50, down 4.27% in after-hours trading after the FCC authorized SpaceX to build a direct-to-phone satellite network using its own spectrum, weakening AST SpaceMobile’s carrier-dependent model. - The October 8 approval was explicitly linked to AST SpaceMobile’s regular-session selloff; shares closed at $56.93, down 6.13%. - The broader market was risk-off: the Nasdaq fell 1.22% and the S&P 500 declined 0.40%.