Ciena (CIEN) Debt/Assets Ratio: History & Chart

Ciena Corporation(CIEN)

Communication Equipment · Hanover Maryland, MD

$368.56+2.60 (+0.71%)

Delayed quote: Sep 22, 2026, 4:00 PM EDT

About Ciena Corporation

Ciena Corporation is a global technology company focused on telecommunications infrastructure. It delivers integrated solutions – including specialized hardware, software applications, and professional services – designed to facilitate the efficient transmission, routing, switching, aggregation, delivery, and overall management of video, data, and voice traffic across communication networks worldwide. Within its Networking Platforms division, Ciena develops and supplies advanced hardware and integrated solutions. These products are specifically engineered to optimize the convergence of various optical transport methods (like coherent optical transport and optical transport network switching) with packet switching, enabling high-performance data handling. The product portfolio spans a range of packet-optical platforms (e.g., the 6500, 5400, and Z-Series), reconfigurable switching systems (such as the 5430), Waveserver interconnect systems, and dedicated switches for service delivery and aggregation (including the 3000 and 5000 families). This segment also provides the essential operating system software and advanced features embedded within its hardware offerings. Ciena's Blue Planet Automation Software and Services arm is dedicated to intelligent network automation. It offers solutions for orchestrating services across multiple network domains, maintaining precise network inventory, optimizing data routes, coordinating virtualized network functions (NFV), and delivering insightful analytics, alongside related support. The Platform Software and Services segment provides unified management platforms, exemplified by its OneControl system, as well as other software tools for comprehensive network planning, operational control, and ongoing oversight. Finally, the Global Services segment delivers end-to-end client support. This includes strategic consulting, detailed network architecture design, expert installation and deployment, ongoing maintenance, and comprehensive training programs. The company distributes its cutting-edge products and services to network operators through both direct sales forces and indirect channel partners. Established in 1992, Ciena Corporation maintains its corporate headquarters in Hanover, Maryland.

Hanover Maryland, MD

8,989 employees

www.ciena.com

Technology / Communication Equipment

Sector: Technology
Industry: Communication Equipment
CEO: Gary Smith

View full financials

CIEN Debt to Assets Ratio Metrics

DEBT TO ASSETS RATIO

2.97%

DEBT TO ASSETS RATIO AVG TTM

22.14%

DEBT TO ASSETS RATIO AVG 3Y

28.05%

DEBT TO ASSETS RATIO AVG 5Y

26.44%

DEBT TO ASSETS RATIO AVG 10Y

24.54%

DEBT TO ASSETS RATIO AVG 15Y

38.71%

DEBT TO ASSETS RATIO AVG 20Y

42.57%

CURRENT VS TTM AVG

-86.60%

CURRENT VS 3Y AVG

-89.43%

CURRENT VS 5Y AVG

-88.78%

CURRENT VS 10Y AVG

-87.92%

CURRENT VS 15Y AVG

-92.34%

CURRENT VS 20Y AVG

-93.03%

SECTOR MEDIAN · TECHNOLOGY

0.18%

median of 194 covered companies

CURRENT VS SECTOR MEDIAN

+1547.51%

vs the sector median at left

NAME	MARKET CAP	DEBT TO ASSETS RATIO	TTM	3Y	5Y
Ciena Corporation (CIEN)	$52.17B	2.97%	22.14%	28.05%	26.44%
Atlassian Corporation (TEAM)vs ›	$49.55B	0.20%	N/A	N/A	N/A
Garmin Ltd. (GRMN)vs ›	$54.90B	0.02%	N/A	N/A	N/A
Workday, Inc. (WDAY)vs ›	$49.31B	0.24%	N/A	N/A	N/A
Strategy Inc (MSTR)vs ›	$55.35B	0.13%	N/A	N/A	N/A
Nebius Group N.V. (NBIS)vs ›	$56.67B	0.36%	N/A	N/A	N/A
STMicroelectronics N.V. (STM)vs ›	$47.67B	0.15%	N/A	N/A	N/A
CoreWeave, Inc. Class A Common Stock (CRWV)vs ›	$47.33B	0.67%	N/A	N/A	N/A
Autodesk, Inc. (ADSK)vs ›	$46.37B	0.29%	N/A	N/A	N/A
Block, Inc. (XYZ)vs ›	$46.14B	0.17%	N/A	N/A	N/A

NAME

MARKET CAP

DEBT TO ASSETS RATIO

TTM

Ciena Corporation (CIEN)

$52.17B

2.97%

22.14%

28.05%

26.44%

Atlassian Corporation (TEAM)vs ›

$49.55B

0.20%

N/A

Garmin Ltd. (GRMN)vs ›

$54.90B

0.02%

N/A

Workday, Inc. (WDAY)vs ›

$49.31B

0.24%

N/A

Strategy Inc (MSTR)vs ›

$55.35B

0.13%

N/A

Nebius Group N.V. (NBIS)vs ›

$56.67B

0.36%

N/A

STMicroelectronics N.V. (STM)vs ›

$47.67B

0.15%

N/A

CoreWeave, Inc. Class A Common Stock (CRWV)vs ›

$47.33B

0.67%

N/A

Autodesk, Inc. (ADSK)vs ›

$46.37B

0.29%

N/A

Block, Inc. (XYZ)vs ›

$46.14B

0.17%

N/A

Debt to Assets Ratio FAQ

What is the debt to assets ratio for Ciena Corporation (CIEN)?

The debt to assets ratio for CIEN stock is 2.97%.

Is Ciena Corporation's debt to assets ratio high or low?

The debt to assets ratio of 2.97% is 89% below its 5-year average of 26.44%, near the low end of its 5-year range (2.97%–29.58%).

What is the TTM average debt to assets ratio for Ciena Corporation (CIEN)?

The TTM average debt to assets ratio for CIEN stock is 22.14%.

What is the 3Y average debt to assets ratio for Ciena Corporation (CIEN)?

The 3Y average debt to assets ratio for CIEN stock is 28.05%.

What is the 5Y average debt to assets ratio for Ciena Corporation (CIEN)?

The 5Y average debt to assets ratio for CIEN stock is 26.44%.

What is the 10Y average debt to assets ratio for Ciena Corporation (CIEN)?

The 10Y average debt to assets ratio for CIEN stock is 24.54%.

What is the 15Y average debt to assets ratio for Ciena Corporation (CIEN)?

The 15Y average debt to assets ratio for CIEN stock is 38.71%.

What is the 20Y average debt to assets ratio for Ciena Corporation (CIEN)?

The 20Y average debt to assets ratio for CIEN stock is 42.57%.

DATE	DEBT TO ASSETS RATIO
2026-08-01	2.97%
2026-05-02	26.17%
2026-01-31	26.96%
2025-11-01	26.98%
2025-08-02	27.61%
2025-05-03	28.07%
2025-02-01	28.32%
2024-11-02	28.93%
2024-07-27	28.64%
2024-04-27	28.52%
2024-01-27	28.75%
2023-10-31	29.58%
2023-07-29	28.14%
2023-04-29	28.04%
2023-01-28	28.70%
2022-10-31	23.40%
2022-07-30	23.17%
2022-04-30	22.74%
2022-01-29	23.07%
2021-10-31	16.52%
2021-07-31	16.09%
2021-05-01	17.17%
2021-01-30	18.12%
2020-10-31	19.81%
2020-08-01	18.65%
2020-05-02	19.59%
2020-01-31	19.83%
2019-10-31	19.40%
2019-07-31	18.25%
2019-04-30	18.73%
2019-01-31	19.12%
2018-10-31	18.46%
2018-07-31	25.95%
2018-04-30	26.77%
2018-01-31	27.02%
2017-10-31	23.69%
2017-07-31	37.11%
2017-04-30	41.89%
2017-01-31	43.23%
2016-10-31	44.42%
2016-07-31	49.58%
2016-04-30	50.66%
2016-01-31	48.69%
2015-10-31	47.28%
2015-08-01	60.06%
2015-05-02	61.13%
2015-01-31	71.27%
2014-10-31	70.68%
2014-07-31	69.71%
2014-04-30	67.63%
2014-01-31	67.37%
2013-10-31	67.23%
2013-07-31	70.10%
2013-04-30	71.45%
2013-01-31	75.59%
2012-10-31	76.66%
2012-07-31	75.30%
2012-04-30	74.78%
2012-01-31	75.19%
2011-10-31	73.91%
2011-07-31	74.41%
2011-04-30	72.91%
2011-01-31	71.27%
2010-10-31	68.89%
2010-07-31	65.01%
2010-04-30	62.61%
2010-01-31	55.03%
2009-10-31	53.61%
2009-07-31	53.41%
2009-04-30	53.38%
2009-01-31	39.89%
2008-10-31	39.42%
2008-07-31	39.19%
2008-04-30	38.91%
2008-01-31	41.81%
2007-10-31	55.55%
2007-07-31	57.06%
2007-04-30	45.68%
2007-01-31	46.98%
2006-10-31	47.56%
2006-07-31	48.45%
2006-04-30	46.27%
2006-01-31	35.17%
2005-10-31	38.73%
2005-07-31	33.73%
2005-04-30	34.15%
2005-01-31	33.40%
2004-10-31	32.29%
2004-07-31	28.57%
2004-04-30	34.27%
2004-01-31	33.07%
2003-10-31	33.29%
2003-07-31	29.55%
2003-04-30	30.11%
2003-01-31	28.61%
2002-10-31	30.88%

DATE

DEBT TO ASSETS RATIO

2026-08-01

2.97%

2026-05-02

26.17%

2026-01-31

26.96%

2025-11-01

26.98%

2025-08-02

27.61%

2025-05-03

28.07%

2025-02-01

28.32%

2024-11-02

28.93%

2024-07-27

28.64%

2024-04-27

28.52%

2024-01-27

28.75%

2023-10-31

29.58%

2023-07-29

28.14%

2023-04-29

28.04%

2023-01-28

28.70%

2022-10-31

23.40%

2022-07-30

23.17%

2022-04-30

22.74%

2022-01-29

23.07%

2021-10-31

16.52%

2021-07-31

16.09%

2021-05-01

17.17%

2021-01-30

18.12%

2020-10-31

19.81%

2020-08-01

18.65%

2020-05-02

19.59%

2020-01-31

19.83%

2019-10-31

19.40%

2019-07-31

18.25%

2019-04-30

18.73%

2019-01-31

19.12%

2018-10-31

18.46%

2018-07-31

25.95%

2018-04-30

26.77%

2018-01-31

27.02%

2017-10-31

23.69%

2017-07-31

37.11%

2017-04-30

41.89%

2017-01-31

43.23%

2016-10-31

44.42%

2016-07-31

49.58%

2016-04-30

50.66%

2016-01-31

48.69%

2015-10-31

47.28%

2015-08-01

60.06%

2015-05-02

61.13%

2015-01-31

71.27%

2014-10-31

70.68%

2014-07-31

69.71%

2014-04-30

67.63%

2014-01-31

67.37%

2013-10-31

67.23%

2013-07-31

70.10%

2013-04-30

71.45%

2013-01-31

75.59%

2012-10-31

76.66%

2012-07-31

75.30%

2012-04-30

74.78%

2012-01-31

75.19%

2011-10-31

73.91%

2011-07-31

74.41%

2011-04-30

72.91%

2011-01-31

71.27%

2010-10-31

68.89%

2010-07-31

65.01%

2010-04-30

62.61%

2010-01-31

55.03%

2009-10-31

53.61%

2009-07-31

53.41%

2009-04-30

53.38%

2009-01-31

39.89%

2008-10-31

39.42%

2008-07-31

39.19%

2008-04-30

38.91%

2008-01-31

41.81%

2007-10-31

55.55%

2007-07-31

57.06%

2007-04-30

45.68%

2007-01-31

46.98%

2006-10-31

47.56%

2006-07-31

48.45%

2006-04-30

46.27%

2006-01-31

35.17%

2005-10-31

38.73%

2005-07-31

33.73%

2005-04-30

34.15%

2005-01-31

33.40%

2004-10-31

32.29%

2004-07-31

28.57%

2004-04-30

34.27%

2004-01-31

33.07%

2003-10-31

33.29%

2003-07-31

29.55%

2003-04-30

30.11%

2003-01-31

28.61%

2002-10-31

30.88%

Debt to Assets Ratio: 2.97%

CIEN Debt to Assets Ratio

CIEN Average Debt to Assets Ratio Chart

CIEN Current vs Average Debt to Assets Ratio Chart

CIEN Debt to Assets Ratio Metrics

CIEN Competitors' Debt to Assets Ratio

Leverage Ratios Comparison

Debt to Assets Ratio Formula & Definition

Debt to Assets Ratio FAQ

CIEN Debt to Assets Ratio History

Related Metrics