Ciena Corp (CIEN) Shares outstanding analysis
- Shares outstanding · latest quarter: Value 141.55M; Formula and calculation Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage..
- Shares outstanding · 1 year ago: Value (m); Formula and calculation Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage..
- Shares outstanding · 5 years ago: Value (m); Formula and calculation Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage..
- Shares change · vs previous quarter: Value (m); Formula and calculation Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage..
Shares outstanding analysis
Overview →Financial period ending 2026-04-30; current quote (m). Amounts retain their stated periods and units.
| Metric | Value | Formula and calculation |
|---|---|---|
| Shares outstanding · latest quarter | 141.55M | Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage. |
| Shares outstanding · 1 year ago | (m) | Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage. |
| Shares outstanding · 5 years ago | (m) | Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage. |
| Shares change · vs previous quarter | (m) | Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage. Calculation unavailable: missing inputs remain (m). |
| Shares count change · vs previous quarter | (m) | Own reported common class count; original count date 2026-05-31. Comparisons require matching class and complete dated split coverage. Calculation unavailable: missing inputs remain (m). |
Calculation inputs
| Input | Amount with unit | Raw financial data |
|---|---|---|
| Current quarter shares | 141.55M shares | |
| Previous quarter shares | (m) |
Shares means common shares outstanding, adjusted to the same split basis for comparison. It is a count, not USD or convertible securities; B means billion shares.
Calculated history
Changes compare with the next older row (previous quarter), unless explicitly labeled otherwise. Rolling 12-month growth compares two successive quarter-end rolling totals; it is not year-over-year growth.
| Period ending | Current quarter shares (shares) | Shares count change · vs previous quarter | Shares change (%) · vs previous quarter |
|---|---|---|---|
| 2026-04-30 | 141.55M | (m) | (m) |
| 2026-01-31 | 141.40M | (m) | (m) |
| 2025-10-31 | 140.85M | (m) | (m) |
| 2025-07-31 | 141.06M | (m) | (m) |
| 2025-04-30 | 141.37M | (m) | (m) |
| 2025-01-31 | 142.15M | (m) | (m) |
| 2024-10-31 | 142.12M | (m) | (m) |
| 2024-07-31 | 144.43M | (m) | (m) |
| 2024-04-30 | 143.71M | (m) | (m) |
| 2024-01-31 | 144.60M | (m) | (m) |
| 2023-10-31 | 144.83M | (m) | (m) |
| 2023-07-31 | 147.84M | (m) | (m) |
| 2023-04-30 | 149.50M | (m) | (m) |
| 2023-01-31 | 149.16M | (m) | (m) |
| 2022-10-31 | 148.42M | (m) | (m) |
| 2022-07-31 | 148.14M | (m) | (m) |
| 2022-04-30 | 149.70M | (m) | (m) |
| 2022-01-31 | 152.13M | (m) | (m) |
| 2021-10-31 | 154.88M | (m) | (m) |
| 2021-07-31 | 154.93M | (m) | (m) |
| 2021-04-30 | 154.77M | (m) | (m) |
| 2021-01-31 | 155.00M | (m) | (m) |
| 2020-10-31 | 154.56M | (m) | (m) |
| 2020-07-31 | 154.32M | (m) | (m) |
| 2020-04-30 | 153.64M | (m) | (m) |
| 2020-01-31 | 153.50M | (m) | (m) |
| 2019-07-31 | 154.70M | (m) | (m) |
(m) means missing inputs. Historical market-based ratios use the saved close on or immediately before period ending and that period’s reported shares; current quotes are not substituted. Five-year projections repeat historical CAGR, not analyst forecasts.
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