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Q4 FY2026 · Earnings report
EPS estimate 2.08Revenue estimate 1.76B
Q4 FY2026 · Earnings report
EPS estimate 2.08Revenue estimate 1.76B
Ciena total debt 1997–2026What is the debt to equity ratio? Debt to equity is a company's total debt divided by its shareholders' equity: how much it has borrowed for each dollar its owners have in the business.
Ciena's total debt was 237.16M USD on 1 August 2026, down 85.1% on a year before. At the end of fiscal year 2025 it was 1.58B USD.
Last updated 7 Nov 2026 · Next report 10 Dec 2026
Total debt
Growth
| Fiscal year | Period ending | Total debt | Growth | Cash and short-term investments | Net cash | Debt to equity |
|---|---|---|---|---|---|---|
| Latest quarter | 1 Aug 2026 | 237.16M | -85.06% | 2.63B | 2.39B | 0.08 |
| FY2025 | 1 Nov 2025 | 1.58B | -3.07% | 1.31B | -274.11M | 0.58 |
| FY2024 | 2 Nov 2024 | 1.63B | -1.50% | 1.25B | -381.05M | 0.58 |
| FY2023 | 28 Oct 2023 | 1.66B | +39.69% | 1.12B | -541.79M | 0.58 |
| FY2022 | 29 Oct 2022 | 1.19B | +47.61% | 1.15B | -37.97M | 0.44 |
| FY2021 | 30 Oct 2021 | 803.68M | -2.95% | 1.60B | 800.35M | 0.27 |
| FY2020 | 31 Oct 2020 | 828.14M | +9.62% | 1.24B | 411.15M | 0.33 |
| FY2019 | 31 Oct 2019 | 755.45M | +8.94% | 1.01B | 258.53M | 0.35 |
| FY2018 | 31 Oct 2018 | 693.45M | -25.91% | 894.40M | 200.95M | 0.36 |
| FY2017 | 31 Oct 2017 | 935.98M | -27.38% | 919.65M | -16.34M | 0.44 |
| FY2016 | 31 Oct 2016 | 1.29B | +1.15% | 1.05B | -235.99M | 1.68 |
| FY2015 | 31 Oct 2015 | 1.27B | -13.02% | 926.08M | -348.06M | 2.05 |
| FY2014 | 31 Oct 2014 | 1.46B | +20.86% | 726.93M | -737.93M | — |
| FY2013 | 31 Oct 2013 | 1.21B | -15.95% | 471.47M | -740.55M | — |
| FY2012 | 31 Oct 2012 | 1.44B | -0.02% | 692.50M | -749.52M | — |
| FY2011 | 31 Oct 2011 | 1.44B | -1.15% | 541.90M | -900.47M | 103.97 |
| FY2010 | 31 Oct 2010 | 1.46B | +80.91% | 688.69M | -770.45M | 9.16 |
| FY2009 | 31 Oct 2009 | 806.55M | +1.07% | 1.05B | 242.33M | 1.77 |
| FY2008 | 31 Oct 2008 | 798.00M | -40.55% | 917.01M | 119.01M | 0.80 |
| FY2007 | 31 Oct 2007 | 1.34B | +53.39% | 1.71B | 371.98M | 1.58 |
| FY2006 | 31 Oct 2006 | 875.05M | +34.88% | 848.56M | -26.49M | 1.16 |
| FY2005 | 31 Oct 2005 | 648.75M | -5.98% | 952.31M | 303.56M | 0.88 |
| FY2004 | 31 Oct 2004 | 690.00M | -12.85% | 955.87M | 265.87M | 0.60 |
| FY2003 | 31 Oct 2003 | 791.74M | -6.81% | 1.11B | 314.73M | 0.59 |
| FY2002 | 31 Oct 2002 | 849.57M | -2.44% | 1.51B | 658.03M | 0.56 |
| FY2001 | 31 Oct 2001 | 870.86M | +15,467.75% | 1.30B | 429.62M | 0.41 |
| FY2000 | 31 Oct 2000 | 5.59M | -5.19% | 238.32M | 232.72M | 0.01 |
| FY1999 | 31 Oct 1999 | 5.90M | — | 262.40M | 256.50M | 0.01 |
| FY1998 | 31 Oct 1998 | 0.00 | — | 227.40M | 227.40M | 0.00 |
| FY1997 | 31 Oct 1997 | 0.00 | — | 263.10M | 263.10M | 0.00 |
| Quarter | Period ending | Total debt | Growth on a year before | Cash and short-term investments | Net cash | Debt to equity |
|---|---|---|---|---|---|---|
| Q3 FY2026 | 1 Aug 2026 | 237.16M | -85.06% | 2.63B | 2.39B | 0.08 |
| Q2 FY2026 | 2 May 2026 | 1.58B | -0.51% | 1.20B | -377.75M | 0.55 |
| Q1 FY2026 | 31 Jan 2026 | 1.59B | +0.65% | 1.30B | -288.94M | 0.57 |
| Q4 FY2025 | 1 Nov 2025 | 1.58B | -3.07% | 1.31B | -274.11M | 0.58 |
| Q3 FY2025 | 2 Aug 2025 | 1.59B | -0.59% | 1.33B | -260.88M | 0.57 |
| Q2 FY2025 | 3 May 2025 | 1.59B | -0.79% | 1.25B | -334.68M | 0.57 |
| Q1 FY2025 | 1 Feb 2025 | 1.58B | -1.86% | 1.21B | -366.36M | 0.57 |
| Q4 FY2024 | 2 Nov 2024 | 1.63B | -1.50% | 1.25B | -381.05M | 0.58 |
| Q3 FY2024 | 27 Jul 2024 | 1.60B | -0.87% | 1.10B | -495.45M | 0.55 |
| Q2 FY2024 | 27 Apr 2024 | 1.60B | -1.14% | 1.26B | -344.32M | 0.56 |
| Q1 FY2024 | 27 Jan 2024 | 1.61B | -1.19% | 1.37B | -236.86M | 0.55 |
| Q4 FY2023 | 31 Oct 2023 | 1.66B | +39.69% | 1.12B | -541.79M | 0.58 |
| Q3 FY2023 | 29 Jul 2023 | 1.61B | +41.81% | 1.26B | -350.81M | 0.55 |
| Q2 FY2023 | 29 Apr 2023 | 1.62B | +43.49% | 1.32B | -301.50M | 0.56 |
| Q1 FY2023 | 28 Jan 2023 | 1.63B | +43.99% | 1.15B | -472.77M | 0.57 |
| Q4 FY2022 | 31 Oct 2022 | 1.19B | +47.61% | 1.15B | -37.97M | 0.44 |
| Q3 FY2022 | 30 Jul 2022 | 1.14B | +51.61% | 1.18B | 45.78M | 0.43 |
| Q2 FY2022 | 30 Apr 2022 | 1.13B | +49.81% | 1.55B | 420.67M | 0.41 |
| Q1 FY2022 | 29 Jan 2022 | 1.13B | +48.99% | 1.58B | 448.52M | 0.40 |
| Q4 FY2021 | 31 Oct 2021 | 803.68M | -2.95% | 1.60B | 800.35M | 0.27 |
| Q3 FY2021 | 31 Jul 2021 | 749.11M | -0.96% | 1.41B | 663.35M | 0.26 |
| Q2 FY2021 | 1 May 2021 | 753.44M | -0.27% | 1.35B | 601.35M | 0.28 |
| Q1 FY2021 | 30 Jan 2021 | 758.78M | -0.13% | 1.18B | 421.90M | 0.29 |
| Q4 FY2020 | 31 Oct 2020 | 828.14M | +9.62% | 1.24B | 411.15M | 0.33 |
| Q3 FY2020 | 1 Aug 2020 | 756.34M | +9.79% | 1.16B | 407.81M | 0.31 |
| Q2 FY2020 | 2 May 2020 | 755.48M | +9.42% | 988.47M | 232.99M | 0.34 |
| Q1 FY2020 | 31 Jan 2020 | 759.74M | +9.80% | 947.35M | 187.61M | 0.35 |
| Q4 FY2019 | 31 Oct 2019 | 755.45M | +8.94% | 1.01B | 258.53M | 0.35 |
| Q3 FY2019 | 31 Jul 2019 | 688.92M | -26.72% | 842.90M | 153.98M | 0.33 |
| Q2 FY2019 | 30 Apr 2019 | 690.43M | -26.45% | 818.48M | 128.05M | 0.33 |
| Q1 FY2019 | 31 Jan 2019 | 691.94M | -26.18% | 787.95M | 96.01M | 0.34 |
| Q4 FY2018 | 31 Oct 2018 | 693.45M | -25.91% | 894.40M | 200.95M | 0.36 |
| Q3 FY2018 | 31 Jul 2018 | 940.17M | -7.43% | 955.15M | 14.98M | 0.53 |
| Q2 FY2018 | 30 Apr 2018 | 938.75M | -19.30% | 920.68M | -18.07M | 0.54 |
| Q1 FY2018 | 31 Jan 2018 | 937.35M | -24.18% | 927.61M | -9.74M | 0.53 |
| Q4 FY2017 | 31 Oct 2017 | 935.98M | -26.89% | 919.65M | -16.34M | 0.44 |
| Q3 FY2017 | 31 Jul 2017 | 1.02B | -32.69% | 794.28M | -221.35M | 1.08 |
| Q2 FY2017 | 30 Apr 2017 | 1.16B | -22.98% | 903.40M | -259.91M | 1.37 |
| Q1 FY2017 | 31 Jan 2017 | 1.24B | -1.94% | 943.91M | -292.39M | 1.55 |
| Q4 FY2016 | 31 Oct 2016 | 1.28B | +0.48% | 1.05B | -227.44M | 1.67 |
| Q3 FY2016 | 31 Jul 2016 | 1.51B | +16.12% | 1.15B | -358.75M | 2.09 |
| Q2 FY2016 | 30 Apr 2016 | 1.51B | +18.13% | 1.12B | -393.18M | 2.26 |
| Q1 FY2016 | 31 Jan 2016 | 1.26B | -13.97% | 870.33M | -390.49M | 2.01 |
| Q4 FY2015 | 31 Oct 2015 | 1.27B | -13.02% | 926.08M | -348.06M | 2.05 |
| Q3 FY2015 | 1 Aug 2015 | 1.30B | -11.25% | 857.16M | -442.40M | 7.31 |
| Q2 FY2015 | 2 May 2015 | 1.28B | +5.30% | 731.43M | -547.18M | 9.22 |
| Q1 FY2015 | 31 Jan 2015 | 1.47B | +20.80% | 743.88M | -721.63M | — |
| Q4 FY2014 | 31 Oct 2014 | 1.46B | +20.86% | 726.93M | -737.93M | — |
| Q3 FY2014 | 31 Jul 2014 | 1.46B | +20.92% | 653.13M | -811.09M | — |
| Q2 FY2014 | 30 Apr 2014 | 1.21B | +0.37% | 415.13M | -799.16M | — |
| Q1 FY2014 | 31 Jan 2014 | 1.21B | -14.86% | 425.08M | -788.07M | — |
| Q4 FY2013 | 31 Oct 2013 | 1.21B | -15.95% | 471.47M | -740.55M | — |
| Q3 FY2013 | 31 Jul 2013 | 1.21B | -16.03% | 478.16M | -732.75M | — |
| Q2 FY2013 | 30 Apr 2013 | 1.21B | -16.11% | 456.47M | -753.34M | — |
| Q1 FY2013 | 31 Jan 2013 | 1.42B | -1.20% | 637.19M | -787.77M | — |
| Q4 FY2012 | 31 Oct 2012 | 1.44B | -0.02% | 692.50M | -749.52M | — |
| Q3 FY2012 | 31 Jul 2012 | 1.44B | -0.02% | 667.35M | -774.76M | — |
| Q2 FY2012 | 30 Apr 2012 | 1.44B | -1.34% | 635.71M | -806.48M | — |
| Q1 FY2012 | 31 Jan 2012 | 1.44B | -1.27% | 600.70M | -841.58M | — |
| Q4 FY2011 | 31 Oct 2011 | 1.44B | -1.15% | 541.90M | -900.47M | 103.97 |
| Q3 FY2011 | 31 Jul 2011 | 1.44B | +22.49% | 486.33M | -956.12M | 50.49 |
| Q2 FY2011 | 30 Apr 2011 | 1.46B | +22.44% | 506.84M | -954.93M | 29.41 |
| Q1 FY2011 | 31 Jan 2011 | 1.46B | +79.22% | 625.82M | -834.95M | 15.36 |
| Q4 FY2010 | 31 Oct 2010 | 1.46B | +80.91% | 688.69M | -770.45M | 9.16 |
| Q3 FY2010 | 31 Jul 2010 | 1.18B | +45.89% | 470.42M | -707.18M | 5.16 |
| Q2 FY2010 | 30 Apr 2010 | 1.19B | +48.02% | 613.77M | -580.12M | 3.63 |
| Q1 FY2010 | 31 Jan 2010 | 815.08M | +2.14% | 1.00B | 186.51M | 1.99 |
| Q4 FY2009 | 31 Oct 2009 | 806.55M | +1.07% | 1.05B | 242.33M | 1.77 |
| Q3 FY2009 | 31 Jul 2009 | 807.21M | -0.09% | 1.06B | 255.62M | 1.70 |
| Q2 FY2009 | 30 Apr 2009 | 806.59M | +0.82% | 1.07B | 259.19M | 1.65 |
| Q1 FY2009 | 31 Jan 2009 | 798.00M | -0.25% | 922.60M | 124.60M | 0.81 |
| Q4 FY2008 | 31 Oct 2008 | 798.00M | -40.55% | 917.01M | 119.01M | 0.80 |
| Q3 FY2008 | 31 Jul 2008 | 807.94M | -41.33% | 1.03B | 220.98M | 0.79 |
| Q2 FY2008 | 30 Apr 2008 | 800.00M | -8.94% | 1.03B | 233.62M | 0.80 |
| Q1 FY2008 | 31 Jan 2008 | 800.00M | -8.52% | 1.18B | 381.95M | 0.90 |
| Q4 FY2007 | 31 Oct 2007 | 1.34B | +53.39% | 1.71B | 371.98M | 1.58 |
| Q3 FY2007 | 31 Jul 2007 | 1.38B | +55.28% | 1.73B | 351.62M | 1.73 |
| Q2 FY2007 | 30 Apr 2007 | 878.51M | +4.30% | 1.12B | 238.45M | 1.11 |
| Q1 FY2007 | 31 Jan 2007 | 874.54M | +60.93% | 870.71M | -3.83M | 1.14 |
| Q4 FY2006 | 31 Oct 2006 | 875.05M | +34.88% | 848.56M | -26.49M | 1.16 |
| Q3 FY2006 | 31 Jul 2006 | 886.88M | +36.71% | 1.02B | 131.71M | 1.22 |
| Q2 FY2006 | 30 Apr 2006 | 842.26M | +22.07% | 1.09B | 247.45M | 1.16 |
| Q1 FY2006 | 31 Jan 2006 | 543.41M | -21.24% | 794.63M | 251.22M | 0.74 |
| Q4 FY2005 | 31 Oct 2005 | 648.75M | -5.98% | 952.31M | 303.56M | 0.88 |
| Q3 FY2005 | 31 Jul 2005 | 648.75M | -13.12% | 916.46M | 267.71M | 0.66 |
| Q2 FY2005 | 30 Apr 2005 | 690.00M | -7.55% | 938.59M | 248.59M | 0.67 |
| Q1 FY2005 | 31 Jan 2005 | 690.00M | -7.86% | 897.64M | 207.64M | 0.63 |
| Q4 FY2004 | 31 Oct 2004 | 690.00M | -12.85% | 955.87M | 265.87M | 0.60 |
| Q3 FY2004 | 31 Jul 2004 | 746.73M | +1.96% | 614.10M | -132.63M | 0.45 |
| Q2 FY2004 | 30 Apr 2004 | 746.36M | +2.02% | 1.04B | 296.71M | 0.63 |
| Q1 FY2004 | 31 Jan 2004 | 748.83M | +2.93% | 1.05B | 304.80M | 0.59 |
| Q4 FY2003 | 31 Oct 2003 | 791.74M | -6.81% | 1.11B | 314.73M | 0.59 |
| Q3 FY2003 | 31 Jul 2003 | 732.40M | -20.15% | 1.31B | 579.94M | 0.52 |
| Q2 FY2003 | 30 Apr 2003 | 731.60M | +5.84% | 1.24B | 507.85M | 0.54 |
| Q1 FY2003 | 31 Jan 2003 | 727.53M | -16.70% | 1.29B | 560.98M | 0.51 |
| Q4 FY2002 | 31 Oct 2002 | 849.57M | -2.44% | 1.51B | 658.03M | 0.56 |
| Q3 FY2002 | 31 Jul 2002 | 917.27M | +5.68% | 1.69B | 769.68M | 0.40 |
| Q2 FY2002 | 30 Apr 2002 | 691.22M | -20.12% | 1.37B | 677.51M | 0.47 |
| Q1 FY2002 | 31 Jan 2002 | 873.43M | +17,417.69% | 1.52B | 650.22M | 0.42 |
| Q4 FY2001 | 31 Oct 2001 | 870.86M | +15,467.75% | 1.30B | 429.62M | 0.41 |
| Q3 FY2001 | 31 Jul 2001 | 867.97M | +15,229.78% | 1.40B | 530.45M | 0.22 |
| Q2 FY2001 | 30 Apr 2001 | 865.31M | +17,199.20% | 1.50B | 636.07M | 0.22 |
| Q1 FY2001 | 31 Jan 2001 | 4.99M | -15.49% | 259.68M | 254.70M | 0.01 |
| Q4 FY2000 | 31 Oct 2000 | 5.59M | -5.19% | 238.32M | 232.72M | 0.01 |
| Q3 FY2000 | 31 Jul 2000 | 5.66M | — | 244.06M | 238.40M | 0.01 |
| Q2 FY2000 | 30 Apr 2000 | 5.00M | — | 237.14M | 232.14M | 0.01 |
| Q1 FY2000 | 31 Jan 2000 | 5.90M | — | 258.50M | 252.60M | 0.01 |
| Q4 FY1999 | 31 Oct 1999 | 5.90M | — | 262.40M | 256.50M | 0.01 |
| Q3 FY1999 | 31 Jul 1999 | 0.00 | — | 142.60M | 142.60M | 0.00 |
| Q2 FY1999 | 30 Apr 1999 | 0.00 | — | 194.90M | 194.90M | 0.00 |
| Q1 FY1999 | 31 Jan 1999 | 0.00 | — | 194.70M | 194.70M | 0.00 |
| Q4 FY1998 | 31 Oct 1998 | 0.00 | — | 227.40M | 227.40M | 0.00 |
| Q3 FY1998 | 31 Jul 1998 | 0.00 | -100.00% | 193.50M | 193.50M | 0.00 |
| Q2 FY1998 | 30 Apr 1998 | 0.00 | -100.00% | 174.50M | 174.50M | 0.00 |
| Q1 FY1998 | 31 Jan 1998 | 0.00 | -100.00% | 251.90M | 251.90M | 0.00 |
| Q4 FY1997 | 31 Oct 1997 | 0.00 | — | 263.10M | 263.10M | 0.00 |
| Q3 FY1997 | 31 Jul 1997 | 2.40M | — | 244.50M | 242.10M | 0.01 |
| Q2 FY1997 | 30 Apr 1997 | 2.70M | — | 180.80M | 178.10M | 0.01 |
| Q1 FY1997 | 31 Jan 1997 | 3.50M | — | 31.90M | 28.40M | 0.06 |
Figures in USD at the end of each period. Net cash is cash and short-term investments less total debt; book value per share is on the diluted share count. The latest column is the most recent quarter.
Total debt counts commercial paper, term debt and lease liabilities.
See also:Revenue,Net income,EPS,Shares outstanding,Operating income,Cash on hand,Free cash flow,Stock buybacks,Balance sheet
Common questions about Ciena's debt
Source: Financial Modeling Prep