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(Updates with the stock move in the headline and first paragraph and previous guidance in third-to-l
CIEN stock surged 11% Tuesday. TECHi tests Ciena’s 2029 revenue, margin and cash-flow targets against its October 6 valuation and execution risks.
Ciena stock traded at USD 430.38 on October 6, 2026, after adjusted EPS reached USD 2.11 in fiscal Q