As of October 29, 2026, Alcoa had a market cap of $10.53 billion, which decreased by 0.75% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.
Data updated: Oct 29, 2026, 4:00 PM ET
Alcoa Corp. (AA)
🌍 United States📈 NYSE🏭 Basic Materials🏢 Metals & Mining
Note: Each point on the chart represents the market capitalization at the end of the trading day. Source: Data compiled from
EDGAR filings,
Bloomberg
and Yahoo Finance.
📈 Alcoa Market Cap History by Year and Month
Alcoa Market Cap History by Year and Month
Year / Month
Market Cap
% Change
2026
$10.53B
▼ 23.47%
$10.53B
▼ 4.96%
$11.08B
▼ 15.93%
$13.18B
▲ 10.39%
$11.94B
▼ 13.23%
$13.76B
▼ 32.85%
$20.49B
▲ 21.75%
$16.83B
▼ 3.83%
$17.5B
▲ 8.83%
$16.08B
▲ 9.31%
$14.71B
▲ 6.90%
2025
$13.76B
▲ 40.97%
$13.76B
▲ 27.29%
$10.81B
▲ 13.47%
$9.527B
▲ 11.87%
$8.516B
▲ 2.18%
$8.334B
▲ 7.40%
$7.76B
▲ 1.57%
$7.64B
▲ 10.23%
$6.931B
▲ 9.13%
$6.351B
▼ 19.57%
$7.896B
▼ 8.27%
$8.608B
▼ 5.67%
$9.125B
▼ 6.52%
2024
$9.761B
▲ 60.86%
$9.761B
▼ 18.62%
$11.995B
▲ 15.82%
$10.357B
▲ 3.91%
$9.967B
▲ 20.19%
$8.293B
▲ 39.78%
$5.933B
▼ 16.94%
$7.143B
▼ 10.14%
$7.949B
▲ 25.97%
$6.31B
▲ 4.01%
$6.067B
▲ 24.17%
$4.886B
▼ 7.97%
$5.309B
▼ 12.51%
2023
$6.068B
▼ 24.57%
$6.068B
▲ 26.57%
$4.794B
▲ 4.76%
$4.576B
▼ 11.76%
$5.186B
▼ 3.39%
$5.368B
▼ 16.88%
$6.458B
▲ 6.69%
$6.053B
▲ 6.96%
$5.659B
▼ 14.59%
$6.626B
▼ 12.71%
$7.591B
▼ 13.03%
$8.728B
▼ 5.59%
$9.245B
▲ 14.92%
2022
$8.045B
▼ 26.66%
$8.045B
▼ 9.30%
$8.87B
▲ 28.44%
$6.906B
▲ 14.04%
$6.056B
▼ 31.98%
$8.903B
▼ 2.77%
$9.157B
▲ 11.66%
$8.201B
▼ 27.96%
$11.384B
▼ 8.97%
$12.506B
▼ 24.68%
$16.603B
▲ 18.86%
$13.968B
▲ 33.79%
$10.44B
▼ 4.82%
2021
$10.969B
▲ 155.87%
$10.969B
▲ 25.99%
$8.706B
▲ 1.27%
$8.597B
▼ 6.10%
$9.155B
▲ 10.42%
$8.291B
▲ 10.50%
$7.503B
▲ 9.07%
$6.879B
▼ 7.13%
$7.407B
▲ 8.27%
$6.841B
▲ 12.96%
$6.056B
▲ 32.46%
$4.572B
▲ 36.56%
$3.348B
▼ 21.90%
2020
$4.287B
▲ 7.39%
$4.287B
▲ 15.86%
$3.7B
▲ 54.04%
$2.402B
▲ 11.10%
$2.162B
▼ 20.46%
$2.718B
▲ 12.45%
$2.417B
▲ 15.65%
$2.09B
▲ 22.08%
$1.712B
▲ 13.00%
$1.515B
▲ 32.31%
$1.145B
▼ 55.60%
$2.579B
▼ 0.39%
$2.589B
▼ 35.15%
2019
$3.992B
▼ 18.71%
$3.992B
▲ 5.72%
$3.776B
▼ 2.13%
$3.858B
▲ 3.60%
$3.724B
▲ 11.93%
$3.327B
▼ 20.27%
$4.173B
▼ 3.91%
$4.343B
▲ 10.48%
$3.931B
▼ 20.59%
$4.95B
▼ 5.25%
$5.224B
▼ 4.53%
$5.472B
▼ 0.22%
$5.484B
▲ 11.67%
2018
$4.911B
▼ 50.73%
$4.911B
▼ 17.21%
$5.932B
▼ 9.09%
$6.525B
▼ 13.38%
$7.533B
▼ 9.57%
$8.33B
▲ 3.23%
$8.069B
▼ 7.69%
$8.741B
▼ 2.48%
$8.963B
▼ 5.99%
$9.534B
▲ 13.88%
$8.372B
▼ 0.01%
$8.373B
▼ 13.09%
$9.634B
▼ 3.34%
2017
$9.967B
▲ 94.10%
$9.967B
▲ 29.78%
$7.68B
▼ 13.12%
$8.84B
▲ 2.86%
$8.594B
▲ 6.24%
$8.089B
▲ 20.55%
$6.71B
▲ 11.54%
$6.016B
▼ 0.87%
$6.069B
▼ 2.33%
$6.214B
▼ 1.94%
$6.337B
▲ 0.14%
$6.328B
▼ 5.10%
$6.668B
▲ 29.85%
2016
$5.135B
▲ 25.06%
$5.135B
▼ 3.08%
$5.298B
▲ 35.43%
$3.912B
▼ 4.72%
All market cap values reflect closing prices for the period shown.
📊 Alcoa Market Cap and Other Industry Peers
Below are selected companies from the Basic Materials sector / subsector:
