Ciena (CIEN) Debt Ratio (2012 - 2026)
Ciena's Debt Ratio came in at 0.40 for fiscal Q3 2026 (quarter ended Aug 1, 2026), up 51.0% from 0.27 a year earlier and up 59.3% from the prior quarter.
Powered by 
Analysis
Ciena (CIEN) Debt Ratio (2012 - 2026) Analysis & Trends
For FY2025 (ended Nov 1, 2025), Ciena's Debt Ratio was 0.26, down 4.4% from FY2024.
- Going back by fiscal year, Debt Ratio was 0.27 in FY2024 (-1.4%), 0.28 in FY2023 (+31.8%), 0.21 in FY2022 (+49.8%) and 0.14 in FY2021 (-14.8%).
- The fiscal Q3 2026 figure represents the highest quarterly Debt Ratio since fiscal Q4 2016.
- Year-over-year, Debt Ratio increased in 1 of the last eight quarters, with growth averaging 3.4%.
- The fastest year-over-year change in Debt Ratio over five years came in fiscal Q3 2026 (growth of 51.0%), and the weakest in fiscal Q4 2021 (a decline of 14.8%).
- Business Quant data shows CIEN's Debt Ratio at 0.25 (Q2 2026), 0.26 (Q1 2026) and 0.26 (Q4 2025) in the three fiscal quarters before Q3 2026.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Debt Ratio (Qtr) |
|---|---|---|---|---|---|
| 1 | Apple | 5,020.54 Bn | 4,766.00 Bn | 54.82 Bn | 0.20 |
| 2 | Cisco Systems | 371.11 Bn | 307.04 Bn | 11.06 Bn | 0.23 |
| 3 | Arista Networks | 215.34 Bn | 164.54 Bn | 2.33 Bn | - |
| 4 | Dell Technologies | 212.13 Bn | 167.88 Bn | 9.83 Bn | 0.27 |
| 5 | Sony | 161.14 Bn | 95.68 Bn | 7.96 Bn | 0.09 |
| 6 | Sandisk | 122.92 Bn | 107.75 Bn | 9.38 Bn | - |
| 7 | Seagate Technology Holdings | 105.29 Bn | 100.14 Bn | 2.43 Bn | 0.23 |
| 8 | Western Digital | 96.46 Bn | 86.29 Bn | 2.53 Bn | 0.06 |
| 9 | Hewlett Packard Enterprise | 59.75 Bn | 37.63 Bn | 4.93 Bn | 0.24 |
| 10 | Ciena | 34.51 Bn | 28.07 Bn | 759.27 Mn | 0.40 |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Aug 1, 2026 | 0.40 |
| May 2, 2026 | 0.25 |
| Jan 31, 2026 | 0.26 |
| Nov 1, 2025 | 0.26 |
| Aug 2, 2025 | 0.27 |
| May 3, 2025 | 0.27 |
| Feb 1, 2025 | 0.28 |
| Nov 2, 2024 | 0.27 |
| Jul 27, 2024 | 0.28 |
| Apr 27, 2024 | 0.28 |
| Jan 27, 2024 | 0.28 |
| Oct 28, 2023 | 0.28 |
| Jul 29, 2023 | 0.27 |
| Apr 29, 2023 | 0.27 |
| Jan 28, 2023 | 0.27 |
| Oct 29, 2022 | 0.21 |
| Jul 30, 2022 | 0.00 |
| Apr 30, 2022 | 0.00 |
| Jan 29, 2022 | 0.00 |
| Oct 30, 2021 | 0.14 |
API Access
Ciena Debt Ratio API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=debt-ratio&ticker=CIEN&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "debt-ratio", "ticker": "CIEN", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=debt-ratio&ticker=CIEN&period=max&api_key=YOUR_API_KEY");
const data = await res.json();