Ciena to Join S&P 500 Index as Dayforce Exits
ByAinvest
Thursday, Feb 5, 2026 9:05 am ET1min read
CIEN--
Ciena (CIEN) will join the S&P 500 Index on February 9, replacing Dayforce. The move reflects Ciena's growing importance and market presence in the networking systems, services, and software sector. The adjustment aims to better represent the current market landscape and evolving technology sector.
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