Serve Robotics is trading 10.55% up now at $5.24 after no clearly reported August 21, 2026 company-specific catalyst was identified.

  • The latest announcement was the August 17 launch of robot delivery with Wonder and Grubhub across Chicago, Los Angeles, and Alexandria.
  • August 6 results included reduced 2026 revenue guidance; both developments predate the current move and do not clearly explain today’s surge.