Ciena is trading 4.26% up now at $450.45 after Lumentum’s stronger-than-expected results and upbeat optical-demand commentary sparked a sector-wide optical-networking rally.
- The advance provided a read-through for Ciena’s AI-networking demand.
- Ciena gained 11.49% on August 12, 2026.
- Cooler inflation data is supporting technology shares and expectations for steady Federal Reserve policy.