Ciena (CIEN) Shares Outstanding (Diluted) (2009 - 2026)
Ciena (CIEN) posted Shares Outstanding (Diluted) of 145.97 million for fiscal Q3 2026 (quarter ended Aug 1, 2026), up 1.0% from 144.5 million a year earlier but down 0.2% from the prior quarter.
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Analysis
Ciena (CIEN) Shares Outstanding (Diluted) (2009 - 2026) Analysis & Trends
For FY2025 (ended Nov 1, 2025), Ciena's Shares Outstanding (Diluted) came in at 145.25 million, down 0.5% from FY2024.
- Annual Shares Outstanding (Diluted) has declined for four consecutive fiscal years, with a five-year compound annual growth rate of -1.4% (FY2020 to FY2025).
- In prior fiscal years, Ciena's Shares Outstanding (Diluted) was 145.96 million in FY2024 (-2.3%), 149.38 million in FY2023 (-1.8%), 152.19 million in FY2022 (-2.9%) and 156.74 million in FY2021 (+0.5%).
- Quarterly Shares Outstanding (Diluted) has run from a low of 144.5 million in fiscal Q3 2025 to a high of 156.74 million in fiscal Q4 2021 over five years.
- On a year-over-year basis, Shares Outstanding (Diluted) increased in three of the last eight quarters, with an average decline of 0.2%.
- The strongest year-over-year quarter for Shares Outstanding (Diluted) in the past five years was fiscal Q3 2026, with growth of 1.0%; the weakest was fiscal Q1 2023, with a decline of 4.0%.
- According to Business Quant data, Shares Outstanding (Diluted) for the three prior fiscal quarters was 146.31 million (Q2 2026), 145.8 million (Q1 2026) and 145.25 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Apple | 5,023.53 Bn | 4,771.02 Bn | 54.77 Bn | 14.71 Bn |
| 2 | Cisco Systems | 434.59 Bn | 370.52 Bn | 11.06 Bn | 3.99 Bn |
| 3 | Dell Technologies | 303.32 Bn | 259.08 Bn | 9.83 Bn | 652.00 Mn |
| 4 | Arista Networks | 233.08 Bn | 186.53 Bn | 1.91 Bn | 1.28 Bn |
| 5 | Sandisk | 204.99 Bn | 193.51 Bn | 7.58 Bn | 155.00 Mn |
| 6 | Seagate Technology Holdings | 151.41 Bn | 146.40 Bn | 1.90 Bn | 229.00 Mn |
| 7 | Sony | 147.67 Bn | 84.93 Bn | 6.53 Bn | 6.01 Bn |
| 8 | Western Digital | 122.89 Bn | 111.02 Bn | 2.03 Bn | 383.00 Mn |
| 9 | Hewlett Packard Enterprise | 78.34 Bn | 56.22 Bn | 4.93 Bn | 1.45 Bn |
| 10 | Ciena | 50.51 Bn | 44.07 Bn | 759.27 Mn | 145.97 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Aug 1, 2026 | 145.97 Mn |
| May 2, 2026 | 146.31 Mn |
| Jan 31, 2026 | 145.80 Mn |
| Nov 1, 2025 | 145.25 Mn |
| Aug 2, 2025 | 144.50 Mn |
| May 3, 2025 | 144.97 Mn |
| Feb 1, 2025 | 145.94 Mn |
| Nov 2, 2024 | 145.96 Mn |
| Jul 27, 2024 | 145.36 Mn |
| Apr 27, 2024 | 144.91 Mn |
| Jan 27, 2024 | 145.85 Mn |
| Oct 28, 2023 | 149.38 Mn |
| Jul 29, 2023 | 149.98 Mn |
| Apr 29, 2023 | 150.15 Mn |
| Jan 28, 2023 | 149.55 Mn |
| Oct 29, 2022 | 152.19 Mn |
| Jul 30, 2022 | 150.46 Mn |
| Apr 30, 2022 | 153.34 Mn |
| Jan 29, 2022 | 155.81 Mn |
| Oct 30, 2021 | 156.74 Mn |
API Access
Ciena Shares Outstanding (Diluted) 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=shares-outstanding-diluted&ticker=CIEN&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "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=shares-outstanding-diluted&ticker=CIEN&period=max&api_key=YOUR_API_KEY");
const data = await res.json();