Top line accelerating.
+18.8% YoY versus −8.5% prior. 3y CAGR +9.5%.
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Technology · Market Cap: $63.1B
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Fundamentals as of 2026-05-02
All analysis on this page is for educational purposes only and does not constitute financial advice. Fair values are model-based estimates. Always do your own research.
The Question
Bottom line: CIEN currently has no legendary investor models qualifying — see /stock/CIEN/valuation for the per-model breakdown, but earns a F sector grade (29/100) in Technology. Use the per-tab analysis to form your own view. Drill into the valuation breakdown and sector ranking for the full picture.
Yes — Ciena Corporation's 15.2% ROE ranks above the S&P 500 median, and D/E 1.09 stays within healthy bounds.
Financial story
Yes — Ciena Corporation's 15.2% ROE shows strong capital efficiency, and its 1.09 debt-to-equity stays within healthy bounds.
CIEN's P/E ratio is 162.7x. 5-year P/E history is in the financials tab.
Investor verdicts vary by methodology. Full breakdown by investor and signal is in the valuation tab.
CIEN's earnings calendar and history are tracked in the financials tab. Specific dates depend on company-published guidance.
CIEN is in the Technology sector. Sector ranking and peer comparison are in the sector tab.
0 of 6 legendary investor models rate CIEN a BUY. Fair value estimates and full investor breakdown are in the valuation tab.
Ciena Corporation's fair value depends on which model you trust. See the per-investor fair-value table in the valuation tab.
How does CIEN compare?
See exactly where CIEN ranks
Sign in to unlock the full sector ranking — free.
Sign in to see the rankingCIEN sits at #167 in Technology with a F grade (29/100).
+18.8% YoY versus −8.5% prior. 3y CAGR +9.5%.
+18.8%Net margin 2.6% versus 2.1% prior (+0.5pp). Operating 6.5%.
2.6%P/E 162.7x — 216% above the 5y median of 51.5x. Forward 74.8x hints at EPS expansion next year.
162.7x