Ciena (CIEN) Stock Price & Live Chart

Why Ciena (CIEN) Matters

Ciena provides optical networking systems, software and services used to move data across carrier, cloud and data-center networks.

MarketInsiderLab covers CIEN because optical transport and data-center interconnect are measurable parts of the AI infrastructure buildout, while customer concentration and demand attribution remain important context.

Ciena is listed on the New York Stock Exchange under ticker CIEN.