Pony AI is trading 4.36% down at $6.58, with no clearly identified company-specific announcement on September 18, 2026.
- The latest major development remains the September 14 Gen-4 Level 4 robotruck unveiling with GAC.
- Pony AI plans volume production later in 2026.
- Broader indexes are modestly lower, but market weakness alone does not establish the cause of todayβs decline.