AST SpaceMobile (ASTS) stock slips after B. Riley downgrade — what traders watch next
New York, Jan 13, 2026, 15:12 EST — Regular session underway. Shares of AST SpaceMobile (ASTS.O) dropped Tuesday following a downgrade from B. Riley Securities, which shifted its rating from Buy to Neutral. Interestingly, the firm also bumped up its