CIEN P/E ratio: current value, 10-year range and year-by-year history
Cash & Leverage
CIEN's p/e ratio is higher than 82% of the last 10 years.
P/E ratio History
CIEN P/E ratio by year
Yearly range of CIEN’s p/e ratio from 2016 to 2026. Over the full period it ranged from -15.9 to 340.5, averaging 53.5.
| Year | Low | Average | High | Year-end |
|---|---|---|---|---|
| 2026 | 70.9 | 194.5 | 340.5 | 74.7 |
| 2025 | 89.1 | 147.7 | 284.5 | 274.5 |
| 2024 | 26.1 | 60.0 | 160.5 | 149.3 |
| 2023 | 24.7 | 34.0 | 51.9 | 26.3 |
| 2022 | 15.5 | 28.3 | 51.9 | 51.0 |
| 2021 | 17.2 | 21.9 | 26.0 | 24.1 |
| 2020 | 16.0 | 22.8 | 29.0 | 22.8 |
| 2019 | -15.9 | 28.1 | 44.6 | 26.7 |
| 2018 | -13.9 | 2.5 | 7.2 | -13.5 |
| 2017 | 2.4 | 28.5 | 50.8 | 2.6 |
| 2016 | 38.8 | 90.3 | 155.8 | 49.3 |
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How much the market pays for each dollar of annual profit. P/E = Stock Price / EPS. The raw number means little — what matters is whether it's high or low relative to the company's own history.
Price / Earnings Per ShareThe chart shows five color-coded historical zones: green (below 10th percentile) means historically very cheap, fading through lime and gray (the normal 25th–75th range) to orange and red (historically expensive). When the line sits in a green or lime zone, the stock is trading at an unusually low P/E relative to its own history.
- Cyclical businesses look cheapest on P/E at peak earnings — the "earnings trap." Use EV/EBITDA or normalised earnings for energy, materials, and financials.
- A falling P/E trend may signal a business in structural decline, not a buying opportunity.
Is CIEN P/E ratio High or Low Right Now?
Ciena Corporation's P/E ratio is currently 74.7, which is historically pricey relative to its 10-year historical range. The 10-year median P/E ratio for CIEN is approximately 30.0. See all CIEN valuation metrics →
Unlock 10y, 15y, 20y, and 30y history with peer comparison and CSV export.