Alcoa AA
NYSE AA
$42.06 +0.06 (+0.14%)
As of: Oct 1, 2026 · 3:59 PM EDT

Alcoa (AA) Shares Outstanding (Diluted) (2015 - 2026)

Updated

Alcoa (AA) posted Shares Outstanding (Diluted) of 266 million for Q2 2026, up 2.3% from 260 million a year earlier and unchanged from the prior quarter.

Analysis

Alcoa (AA) Shares Outstanding (Diluted) (2015 - 2026) Analysis & Trends

For FY2025, Alcoa's Shares Outstanding (Diluted) came in at 261 million, up 22.0% from FY2024.

  • Annual Shares Outstanding (Diluted) shows a five-year compound annual growth rate of 7.0% (FY2020 to FY2025).
  • In prior years, Alcoa's Shares Outstanding (Diluted) was 214 million in FY2024 (+20.2%), 178 million in FY2023 (-1.7%), 181 million in FY2022 (-4.7%) and 190 million in FY2021 (+2.2%).
  • On a year-over-year basis, Shares Outstanding (Diluted) has increased in each of the last ten quarters, with growth averaging 22.3% over the last eight quarters.
  • The strongest year-over-year quarter for Shares Outstanding (Diluted) in the past five years was Q1 2025, with growth of 45.3%; the weakest was Q3 2022, with a decline of 6.3%.
  • According to Business Quant data, Shares Outstanding (Diluted) for the three prior quarters was 266 million (Q1 2026), 261 million (Q4 2025) and 261 million (Q3 2025).
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Shares Outstanding (Dil.) (Qtr)
1 Rio Tinto 181.90 Bn 148.03 Bn - 1.64 Bn
2 Southern Copper 169.19 Bn 148.06 Bn 2.90 Bn 829.10 Mn
3 Newmont 121.55 Bn 89.73 Bn 4.03 Bn 1.07 Bn
4 Ternium 108.92 Bn 73.97 Bn 941.02 Mn -
5 Freeport-Mcmoran 100.46 Bn 96.62 Bn 2.19 Bn 1.44 Bn
6 Agnico Eagle Mines 91.62 Bn 91.62 Bn 2.43 Bn 503.43 Mn
7 Barrick Mining 68.12 Bn 52.86 Bn 2.90 Bn 1.71 Bn
8 Nucor 53.04 Bn 43.58 Bn 2.03 Bn 228.50 Mn
9 ArcelorMittal 50.74 Bn 31.77 Bn - 766.00 Mn
10 Alcoa 11.08 Bn 5.36 Bn 999.00 Mn 266.00 Mn
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 266.00 Mn
Mar 31, 2026 266.00 Mn
Dec 31, 2025 261.00 Mn
Sep 30, 2025 261.00 Mn
Jun 30, 2025 260.00 Mn
Mar 31, 2025 260.00 Mn
Dec 31, 2024 214.00 Mn
Sep 30, 2024 234.00 Mn
Jun 30, 2024 181.00 Mn
Mar 31, 2024 179.00 Mn
Dec 31, 2023 178.00 Mn
Sep 30, 2023 178.00 Mn
Jun 30, 2023 178.00 Mn
Mar 31, 2023 178.00 Mn
Dec 31, 2022 181.00 Mn
Sep 30, 2022 179.00 Mn
Jun 30, 2022 186.00 Mn
Mar 31, 2022 188.00 Mn
Dec 31, 2021 190.00 Mn
Sep 30, 2021 191.00 Mn
API Access

Alcoa 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=AA&period=max&api_key=YOUR_API_KEY