Western Digital (WDC) Shares Outstanding (Diluted) (2009 - 2026)
Western Digital's Shares Outstanding (Diluted) was 383 million in fiscal Q4 2026 (quarter ended Jul 3, 2026), up 6.7% from 359 million a year earlier but down 1.0% from the prior quarter.
Western Digital (WDC) Shares Outstanding (Diluted) (2009 - 2026) Analysis & Trends
From fiscal Q3 2009 onward, Western Digital has reported Shares Outstanding (Diluted) for 70 quarters.
- Shares Outstanding (Diluted) has now increased for seven consecutive fiscal years, with a five-year compound annual growth rate of 4.4% (FY2021 to FY2026).
- In earlier fiscal years, Shares Outstanding (Diluted) was 359 million in FY2025 (+10.1%), 326 million in FY2024 (+2.5%), 318 million in FY2023 (+0.6%) and 316 million in FY2022 (+2.3%).
- Quarterly Shares Outstanding (Diluted) has moved between 315 million (fiscal Q2 2022) and 387 million (fiscal Q3 2026) over five years.
- Compared with a year earlier, Shares Outstanding (Diluted) has increased for 27 straight quarters, with growth averaging 8.0% over the last eight quarters.
- The year-over-year growth in Shares Outstanding (Diluted) has ranged between 0.6% (fiscal Q4 2023) and 10.5% (fiscal Q1 2025) over the last five years.
- Per Business Quant data, WDC's Shares Outstanding (Diluted) in the three fiscal quarters before Q4 2026 was 387 million (Q3 2026), 381 million (Q2 2026) and 376 million (Q1 2026).
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Apple | 4,874.86 Bn | 4,622.35 Bn | 54.77 Bn | 14.71 Bn |
| 2 | Cisco Systems | 442.74 Bn | 378.67 Bn | 11.06 Bn | 3.99 Bn |
| 3 | Dell Technologies | 360.03 Bn | 315.78 Bn | 9.83 Bn | 652.00 Mn |
| 4 | Arista Networks | 261.51 Bn | 214.96 Bn | 1.91 Bn | 1.28 Bn |
| 5 | Sandisk | 251.12 Bn | 239.64 Bn | 7.58 Bn | 155.00 Mn |
| 6 | Seagate Technology Holdings | 192.54 Bn | 187.54 Bn | 1.90 Bn | 229.00 Mn |
| 7 | Western Digital | 149.92 Bn | 138.05 Bn | 2.03 Bn | 383.00 Mn |
| 8 | Sony | 146.49 Bn | 96.88 Bn | 6.53 Bn | 6.01 Bn |
| 9 | Lumentum Holdings | 96.17 Bn | 87.98 Bn | 477.30 Mn | 74.60 Mn |
| 10 | Hewlett Packard Enterprise | 92.09 Bn | 69.97 Bn | 4.93 Bn | 1.45 Bn |
Historic Data
| Date | Value |
|---|---|
| Jul 3, 2026 | 383.00 Mn |
| Apr 3, 2026 | 387.00 Mn |
| Jan 2, 2026 | 381.00 Mn |
| Oct 3, 2025 | 376.00 Mn |
| Jun 27, 2025 | 359.00 Mn |
| Mar 28, 2025 | 358.00 Mn |
| Dec 27, 2024 | 357.00 Mn |
| Sep 27, 2024 | 357.00 Mn |
| Jun 28, 2024 | 326.00 Mn |
| Mar 29, 2024 | 335.00 Mn |
| Dec 29, 2023 | 325.00 Mn |
| Sep 29, 2023 | 323.00 Mn |
| Jun 30, 2023 | 318.00 Mn |
| Mar 31, 2023 | 319.00 Mn |
| Dec 30, 2022 | 318.00 Mn |
| Sep 30, 2022 | 319.00 Mn |
| Jul 1, 2022 | 316.00 Mn |
| Apr 1, 2022 | 316.00 Mn |
| Dec 31, 2021 | 315.00 Mn |
| Oct 1, 2021 | 316.00 Mn |
Western Digital 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=WDC&period=max&api_key=YOUR_API_KEY
import requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "WDC", "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=WDC&period=max&api_key=YOUR_API_KEY");
const data = await res.json();