Alcoa
Alcoa is a leader in the materials industry, focusing on bauxite mining, alumina refining, and aluminum smelting. The company is recognized for its commitment to sustainability and innovation, operating the industry's lowest-carbon alumina refining system. Alcoa aims to shape the future by turning raw potential into real progress.
Short position
Alcoa (ASX:AAI) has 2.79% of its shares on issue reported as short positions as of 5 Oct 2026, or about 1,145,632 shares. Over the past 30 days that figure has risen 1.68 percentage points, and over 90 days it has risen 1.68 percentage points. Its highest recorded short interest was 5.57% in August 2024. AAI is classified in the Materials industry. All figures come from official ASIC short position reports, published with a four trading-day (T+4) delay.
Price & short interest
Toggle series, zoom, and compare · ASIC daily, T+4Alcoa (AAI) short interest history
AAI Short Interest History
- 30-day change
- +1.68pp
- 90-day change
- +1.68pp
- 1-year change
- +2.39pp
- All-time high
- 5.57% (August 2024)
- All-time low
- 0.02% (July 2024)
Is AAI heavily shorted?
Not especially: 2.79% short interest is modest by ASX standards, ranking #124 of 799 ASX securities with reported short positions. ASIC requires positions of 0.01% of issued capital or $100,000 (whichever is less) to be reported.
How has AAI's short interest changed recently?
Over the past 30 days Alcoa's short interest has risen 1.68 percentage points, and over 90 days it has risen 1.68 percentage points. The current level is 2.79% of shares on issue.
What is the highest AAI's short interest has been?
Since 2015, Alcoa's short interest peaked at 5.57% in August 2024 and bottomed at 0.02% in July 2024.
Where does this data come from?
All figures are sourced from daily ASIC short position reports, published with a four trading-day (T+4) delay. Shorted aggregates the full history since 2015. See our methodology.