Ciena Corporation (CIEN) debt
What Ciena owes, when it comes due, and what it costs to carry, from the balances and cash flows the company reports to the U.S. Securities and Exchange Commission.
At a glance
| Metric | Aug 2026 | Aug 2025 | Change |
|---|---|---|---|
| Total debt | $3.23B | $1.54B | +$1.69B |
| Due within a year | $0 | $12M | −$12M |
| Long-term debt | $3.23B | $1.53B | +$1.70B |
| Cash and equivalents | $2.45B | $1.06B | +$1.39B |
| Net debt | $784M | $482M | +$302M |
Total debt is the sum of the debt lines the company reports at that date (long-term, current and short-term borrowings), not a figure the company reports as a total.
Debt over time
| Balance date | Total debt | Due within a year | Long-term debt | Cash |
|---|---|---|---|---|
| Aug 2026 | $3.23B† | $0 | $3.23B | $2.45B |
| May 2026 | $1.53B† | $12M | $1.52B | $1.05B |
| Jan 2026 | $1.54B† | $12M | $1.52B | $1.12B |
| Nov 2025 | $1.54B† | $12M | $1.52B | $1.09B |
| Aug 2025 | $1.54B† | $12M | $1.53B | $1.06B |
| May 2025 | $1.54B† | $12M | $1.53B | $950M |
| Feb 2025 | $1.54B† | $12M | $1.53B | $875M |
| Nov 2024 | $1.54B† | $12M | $1.53B | $935M |
| Jul 2024 | $1.55B† | $12M | $1.54B | $883M |
| Apr 2024 | $1.55B† | $12M | $1.54B | $1.09B |
| Jan 2024 | $1.55B† | $12M | $1.54B | $1.26B |
| Oct 2023 | $1.56B† | $12M | $1.54B | $1.01B |
† Sum of the debt lines the company reports at that date, not a reported total.
Interest cost and borrowing
| Fiscal year | Interest expense | Borrowed | Repaid |
|---|---|---|---|
| FY Nov 2025 | $89M | — | $12M |
| FY Nov 2024 | $97M | — | $12M |
| FY Oct 2023 | $88M | — | $9M |
| FY Oct 2022 | $47M | $400M | $5M |
| FY Oct 2021 | $31M | $0 | $7M |
* Fiscal fourth quarter computed from the annual filing minus the three reported quarters.
About these figures
These are the balances Ciena reports in its SEC filings as of each balance-sheet date, and the interest, borrowing and repayments it reports for each period. This page does not show market prices or yields of the company's bonds. "Long-term debt" is the line as the company tags it in its filings and may or may not include the portion due within a year.
All figures from company filings with the SEC.