Ciena (CIEN)
S&P 500 · Tech Top 100 · Information Technology · data since 1997-02-07 · last close 2026-09-09
Ciena (CIEN) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 7.7 | 38.5 | 11.3 | 35.9 | 10.0 | -15.4 | -23.1 | 1.5 | -11.7 | · | · | · |
| 2025 | 2.8 | -8.7 | -24.1 | 11.1 | 19.2 | 1.6 | 14.2 | 1.2 | 55.0 | 30.4 | 7.5 | 14.5 |
| 2024 | 17.8 | 7.5 | -13.2 | -6.5 | 4.2 | 0.0 | 9.5 | 9.3 | 6.8 | 3.1 | 9.8 | 21.6 |
| 2023 | 2.0 | -7.3 | 8.9 | -12.3 | 1.5 | -9.1 | -0.7 | 18.4 | -5.4 | -10.7 | 8.7 | -1.8 |
| 2022 | -13.8 | 3.2 | -11.4 | -9.0 | -7.9 | -10.1 | 12.9 | -1.7 | -20.3 | 18.5 | -6.1 | 13.4 |
| 2021 | 1.0 | -2.3 | 4.9 | -7.8 | 4.8 | 7.6 | 2.2 | -1.7 | -10.1 | 5.7 | 10.9 | 27.8 |
| 2020 | -4.7 | -5.5 | 3.5 | 16.2 | 19.5 | -2.0 | 9.9 | -4.6 | -30.1 | -0.8 | 13.7 | 18.0 |
| 2019 | 12.3 | 12.0 | -12.5 | 2.7 | -8.9 | 17.7 | 9.9 | -9.5 | -4.2 | -5.4 | 2.3 | 12.5 |
| 2018 | 1.7 | 8.9 | 11.8 | -0.6 | -10.5 | 15.0 | -4.2 | 24.3 | -1.1 | 0.1 | 4.3 | 4.0 |
| 2017 | -0.3 | 8.2 | -10.4 | -3.0 | 2.5 | 6.6 | 2.9 | -16.1 | 1.7 | -3.2 | 2.3 | -3.8 |
| 2016 | -14.1 | 15.4 | -7.2 | -11.5 | 3.7 | 7.4 | 2.4 | 11.8 | 1.6 | -11.1 | 10.7 | 13.8 |
| 2015 | -4.6 | 13.0 | -7.7 | 10.3 | 13.2 | -1.8 | 7.5 | -12.1 | -7.3 | 16.5 | 3.7 | -17.4 |
| 2014 | -2.5 | 5.3 | -7.5 | -13.1 | -1.9 | 11.7 | -9.8 | 5.9 | -19.2 | 0.2 | -1.4 | 17.4 |
| 2013 | -0.3 | -2.7 | 5.0 | -6.6 | 11.9 | 16.1 | 13.5 | -9.7 | 25.6 | -7.0 | -4.6 | 7.7 |
| 2012 | 20.3 | 2.3 | 8.7 | -8.5 | -8.6 | 20.8 | -2.1 | -14.7 | -0.6 | -8.6 | 19.8 | 5.5 |
| 2011 | 4.7 | 25.1 | -5.9 | 8.9 | -5.3 | -31.3 | -15.9 | -20.8 | -8.5 | 17.7 | -8.1 | -0.1 |
| 2010 | 17.6 | 12.5 | 6.4 | 21.4 | -16.0 | -18.6 | 3.2 | -4.6 | 24.7 | -11.3 | 9.6 | 39.1 |
| 2009 | -6.9 | -13.9 | 44.9 | 53.6 | -8.0 | -5.9 | 7.8 | 20.1 | 21.5 | -27.9 | 3.6 | -10.8 |
| 2008 | -20.5 | -4.8 | 19.4 | 9.7 | -9.6 | -24.2 | -10.8 | -15.9 | -42.0 | -4.7 | -23.0 | -9.5 |
| 2007 | 1.4 | 12.0 | -11.2 | 4.3 | 17.7 | 5.3 | 1.1 | 3.7 | 0.5 | 25.7 | -8.1 | -22.4 |
| 2006 | 34.7 | 0.5 | 29.6 | -21.5 | 5.1 | 11.9 | -24.5 | 8.8 | -1.4 | -13.7 | 6.9 | 10.2 |
| 2005 | -23.6 | -22.4 | -13.1 | 33.7 | -3.5 | -5.9 | 7.2 | 0.5 | 17.3 | -10.2 | 26.2 | -0.7 |
| 2004 | 10.5 | -21.0 | -13.3 | -16.9 | -13.1 | 3.1 | -23.8 | -35.5 | 8.8 | 24.8 | 3.2 | 31.0 |
| 2003 | 12.8 | -6.5 | -19.4 | 11.7 | 17.8 | -10.1 | 11.4 | 12.8 | -9.8 | 9.4 | 10.4 | -7.3 |
| 2002 | -11.3 | -38.9 | 16.0 | -16.8 | -24.4 | -26.0 | -3.8 | 0.5 | -26.7 | 23.9 | 80.7 | -22.7 |
| 2001 | 10.8 | -25.4 | -37.9 | 31.9 | -1.6 | -29.8 | -12.8 | -48.3 | -39.9 | 58.0 | 9.2 | -19.4 |
| 2000 | 14.1 | 143.5 | -21.1 | -2.0 | -3.2 | 39.3 | -14.7 | 56.0 | 10.8 | -14.4 | -27.8 | 7.0 |
| 1999 | 38.0 | 38.1 | -19.3 | 4.4 | 22.3 | 5.0 | 11.8 | 4.1 | 3.9 | -3.4 | 24.6 | 30.9 |
| 1998 | -9.9 | -23.8 | 1.6 | 30.8 | -6.7 | 33.9 | 6.4 | -62.0 | -49.1 | 20.1 | -1.1 | -14.0 |
| 1997 | · | 6.1 | -27.6 | 9.9 | 49.6 | 0.8 | 19.1 | -14.9 | 3.7 | 11.0 | -1.8 | 13.2 |
| Avg | 3.4 | 5.6 | -3.0 | 5.4 | 2.5 | 0.4 | 0.2 | -3.1 | -3.5 | 4.6 | 6.4 | 5.4 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
CIEN seasonality — average by calendar month
Ciena has monthly history back to 1997. Its strongest month by median is December — positive in 17 of 29 years, median +7.0%, and higher in 7 of the last 9. March is the soft spot, down in 17 of 30 with a median of -7.3%. Across its full record it has closed 54% of months higher, swings ±19.2% in an average month and has fallen 99.5% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +3.4% | +5.6% | -3.0% | +5.3% | +2.5% | +0.5% | +0.2% | -3.1% | -3.2% | +4.6% | +6.4% | +5.4% |
| Win rate | 59%/29 | 57%/30 | 43%/30 | 53%/30 | 50%/30 | 57%/30 | 60%/30 | 50%/30 | 45%/29 | 52%/29 | 69%/29 | 59%/29 |
Win rate = share of positive months / sample size.
CIEN risk & extremes
CIEN drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
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Frequently asked questions
What was Ciena's best month?+
Ciena's strongest completed month on record is February 2000, at +143.52%.
What was Ciena's worst month?+
Its weakest completed month on record is August 1998, at -62.03%.
Is Ciena up this year?+
Ciena is up 44.52% year to date, measured from its last close before 1 January.
What is Ciena's 1-year return?+
+176.62% over the past twelve months, comparing the latest close with the most recent close on or before the same date a year earlier.
What is Ciena's biggest drawdown?+
The deepest peak-to-trough fall on record is 99.5%, measured on month-end closes since 1997.
Which calendar month is historically best for Ciena?+
November has the highest average return across every completed November since 1997. An average is not a forecast.
About Ciena
Ciena is an S&P 500 company, an information technology business worth about $48 billion. It sells the picks and shovels of the digital gold rush — with price receipts on this site going back to 1997. And the long game: $100 at its first close here (1997) would be about $279 today.
Did you know?
- Its best month on record was February 2000 at +143.52%; its worst, August 1998 at -62.03%.
Trivia for entertainment — the numbers come from our price data; the jokes don't.