CIEN
StockCiena Corporation
One email when a drop — in price or in valuation — is historically rare for CIEN. Otherwise we stay quiet.
This is the kind of decline worth waking up for.
Ciena Corporation is 62.2% off its high — among the deepest declines in its recorded history.
But down is not the same as cheap: Ciena Corporation's P/S Severity Score is 0.0 — its valuation sits in or above its typical range.
Very Large
Current Drawdown
-62.2%
Days in Drawdown
9422
Avg Max Drawdown
12.3%
Avg Length
39
Drawdown Severity Score™
9.5
CIEN - Price & High Water Mark
CIEN - Drawdown Timeline
How to read this chart: Negative values indicate drawdowns from all-time highs. Values closer to 0% mean the stock is near its high water mark.
Valuation vs Its Own History
Data as of August 22, 2026 · updated daily
Where today's valuation sits within CIEN's own multi-year range, scored with the same Drawdown Severity Score language as price, measured from its typical level rather than its record high — a higher score means it has rarely been cheaper. This is context, not a recommendation.
Price to Sales
Ciena Corporation has been cheaper on this measure only about 98% of the time in 20 years of daily history.
Price to Sales history
EV to EBITDA
Ciena Corporation has been cheaper on this measure only about 89% of the time in 20 years of daily history.
EV to EBITDA history · log scale
Ciena Corporation (CIEN) Analysis: Current Drawdown Insights
Ciena Corporation is currently in a drawdown that is unusual by its own historical standards. As of 2026-08-21, the stock is trading at $395.79, which represents a 62.2% decline from its all-time high of $1,046.50. This drawdown has persisted for 9422 days.
Based on its full tracked price history, Ciena Corporation typically experiences drawdowns averaging 12.3% in depth, with an average duration of 39 days. Ciena Corporation has gone through 33 total drawdown events in its tracked history. The largest drawdown on record for Ciena Corporation was 90.8%, beginning in 1998. The longest drawdown duration on record was 570 days.
The Drawdown Severity Score™ for Ciena Corporation currently stands at 9.48. This is our proprietary indicator that shows the relative severity of the current drawdown based on the asset's unique historical patterns. A score between 8.0 and 12.0 indicates an extremely rare, severe drawdown: the asset almost never experiences declines of this magnitude in its tracked history.
Understanding Drawdowns: A drawdown measures how far a stock has fallen from its peak price. Every stock experiences drawdowns: periods when the price declines from all-time highs before recovering. By analyzing Ciena Corporation's historical drawdown patterns, investors can identify when the stock is experiencing a typical market fluctuation versus an unusual decline that is rare by that stock's own historical standards.
📜 Historical Drawdown Events
Current drawdown shown in blue. Showing the most recent and the deepest of 33 tracked pullbacks (33 listed).
| Start Date | End Date | Duration | Max Depth | Start Price | Lowest Price | Recovery Price |
|---|---|---|---|---|---|---|
| 2000-11-03 | Ongoing | 9422 days | -62.2% | $1,046.50 | $395.79 | n/a |
| 2000-10-17 | 2000-10-19 | 3 days | -8.2% | $946.20 | $868.44 | $979.23 |
| 2000-09-29 | 2000-10-16 | 18 days | -15.3% | $910.00 | $770.88 | $946.20 |
| 2000-09-26 | 2000-09-28 | 3 days | -3.5% | $892.94 | $861.88 | $910.00 |
| 2000-09-21 | 2000-09-22 | 2 days | -2.1% | $817.25 | $799.75 | $845.25 |
| 2000-09-05 | 2000-09-20 | 16 days | -22.2% | $805.44 | $626.50 | $817.25 |
| 2000-08-30 | 2000-08-31 | 2 days | -0.9% | $741.78 | $735.44 | $775.91 |
| 2000-08-25 | 2000-08-28 | 4 days | -1.6% | $703.72 | $692.78 | $733.03 |
| 2000-08-18 | 2000-08-21 | 4 days | -1.4% | $627.16 | $618.41 | $637.22 |
| 2000-03-02 | 2000-08-17 | 168 days | -50.3% | $619.50 | $308.00 | $627.16 |
| 2000-02-23 | 2000-02-24 | 2 days | -1.9% | $416.72 | $408.84 | $436.41 |
| 2000-02-17 | 2000-02-22 | 6 days | -3.5% | $411.91 | $397.47 | $416.72 |
| 2000-02-15 | 2000-02-16 | 2 days | -0.1% | $349.34 | $348.91 | $411.91 |
| 2000-02-11 | 2000-02-14 | 4 days | -2.0% | $346.50 | $339.50 | $349.34 |
| 1998-07-21 | 2000-02-10 | 570 days | -90.8% | $310.19 | $28.66 | $346.50 |
| 1998-07-14 | 1998-07-15 | 2 days | -1.0% | $261.19 | $258.56 | $270.38 |
| 1998-07-10 | 1998-07-13 | 4 days | -1.8% | $260.75 | $255.94 | $261.19 |
| 1998-06-25 | 1998-07-07 | 13 days | -2.8% | $250.69 | $243.69 | $253.75 |
| 1998-06-16 | 1998-06-19 | 4 days | -1.5% | $218.75 | $215.47 | $220.50 |
| 1998-06-08 | 1998-06-15 | 8 days | -2.7% | $217.22 | $211.31 | $218.75 |
| 1997-10-23 | 1998-06-05 | 226 days | -38.9% | $217.00 | $132.56 | $217.22 |
| 1997-10-10 | 1997-10-21 | 12 days | -5.3% | $206.50 | $195.56 | $206.94 |
| 1997-08-06 | 1997-10-09 | 65 days | -22.7% | $202.56 | $156.63 | $206.50 |
| 1997-08-04 | 1997-08-05 | 2 days | -4.5% | $202.45 | $193.38 | $202.56 |
| 1997-07-25 | 1997-07-31 | 7 days | -3.1% | $196.00 | $189.88 | $196.44 |
| 1997-07-17 | 1997-07-24 | 8 days | -11.7% | $194.25 | $171.50 | $196.00 |
| 1997-07-14 | 1997-07-16 | 3 days | -2.7% | $185.94 | $180.91 | $194.25 |
| 1997-06-11 | 1997-07-11 | 31 days | -16.0% | $180.25 | $151.38 | $185.94 |
| 1997-06-09 | 1997-06-10 | 2 days | -2.0% | $177.41 | $173.91 | $180.25 |
| 1997-06-03 | 1997-06-06 | 4 days | -4.0% | $165.38 | $158.81 | $177.41 |
| 1997-05-27 | 1997-05-30 | 4 days | -8.2% | $161.00 | $147.88 | $163.63 |
| 1997-02-26 | 1997-05-23 | 86 days | -47.4% | $149.63 | $78.75 | $161.00 |
| 1997-02-14 | 1997-02-24 | 11 days | -15.0% | $137.38 | $116.81 | $140.00 |
| 1997-02-10 | 1997-02-13 | 4 days | -11.5% | $129.50 | $114.63 | $137.38 |
How to read: Each row shows a complete drawdown from peak to recovery. Red rows = most severe drawdowns (worst 20% or 5x+ average), yellow rows = moderate (2x-5x worse than average).
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Or explore current drawdowns:
Ciena Corporation (CIEN) is trading at $395.79 as of Aug 21, 2026. It is 62.2% below its high of $1,046.50. The drawdown has lasted 9,422 days. Severity score: 9.5 (Very Large).
CIEN Price History and Drawdown Data
Latest price
$395.79
High-water mark
$1,046.50
Current drawdown
-62.2%
Days in drawdown
9,422
This CIEN page is built around daily price history, the latest high-water mark, current drawdown depth, drawdown duration, and comparable historical drawdown events. The chart above provides the price-history context, while the sections below explain how the current move compares with prior Ciena Corporation drawdowns.
What History Says About CIEN
Ciena Corporation has dropped 15%+ from its high 8 times in its tracked history. These events lasted an average of 148 days with an average max drop of -37.9%.
The current drawdown of -62.2% has lasted 9,422 days, which is 63.7x the average duration of comparable events.
| Period | Max Drop | Duration |
|---|---|---|
| Jul 1998 to Feb 2000 | -90.8% | 570 days |
| Mar 2000 to Aug 2000 | -50.3% | 168 days |
| Feb 1997 to May 1997 | -47.4% | 86 days |
| Oct 1997 to Jun 1998 | -38.9% | 226 days |
| Aug 1997 to Oct 1997 | -22.7% | 65 days |
| Sep 2000 to Sep 2000 | -22.2% | 16 days |
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