Ambarella is trading at $69.98, up +10.25%, as semiconductor stocks rally on AI-demand optimism and Qualcomm’s Amazon custom-chip collaboration.
- No new company-specific announcement on September 9, 2026 clearly explains the rally.
- Ambarella’s investor-relations page lists a Citi conference appearance but no fresh catalyst.
- Recent earnings, distribution, and Capgemini announcements were released September 3 and appear to be background rather than a new-day catalyst.