Ciena Rejoins S&P 500 After 17-Year Absence, Replacing Dayforce
DATA AND AI INFRASTRUCTURE
Ciena is set to rejoin the S&P 500, replacing Dayforce, which was acquired by Thoma Bravo for $12.3 billion. Ciena's stock has nearly tripled in the past year, primarily due to increased demand for data center infrastructure needed for generative AI.
The company anticipates 24% revenue growth in fiscal 2026, the fastest since 2011. Ciena's stock closed at its highest since 2001. Supply constraints in optical parts and memory have led to rising prices, prompting Ciena to collaborate closely with key suppliers to secure its supply chain.
Feb 5, 2026, 2:18 PM
