SRFM ▲ +8.0% - Surf Air Mobility Inc. $SRFM PLTR - Surf Air Mobility Signs First OperatorOS Contract with Sprintbach Aviation Surf Air Mobility rose 8.0% after announcing its first OperatorOS contract with Sprintbach Aviation, a software licensing deal that validates the commercial viability of its aviation operating system platform and expands its revenue stream beyond aircraft manufacturing. 17-SEP-2026 06:37 AM ET