Archer Aviation (NYSE: ACHR) shares rose 4.84% to $6.06 on May 21, 2026. The rally follows the company’s entry into Phase 4 of the FAA type certification process for its eVTOL aircraft.
Archer is simultaneously escalating a legal battle with Joby Aviation over corporate espionage charges. The company also secured Hawthorne Municipal Airport to serve as a primary hub for Los Angeles air taxi operations. These services are positioned to launch ahead of the 2028 Olympic Games.