Ciena Rejoins S&P 500 As AI Data Center Demand Lifts Valuation

Ciena (NYSE:CIEN) has been added back to the S&P 500 index, highlighting renewed attention from equity investors. The company is cited as a supplier to AI focused data centers, with order backlogs linked to AI infrastructure projects. Analysts reference sentiment around Ciena's role in ongoing data center expansion. Ciena, a networking systems and software company, provides high capacity optical connectivity that large data centers use. As AI workloads scale, operators may seek faster, more...