Alcoa (AA) Short Interest Ratio & Short Volume $31.11 -0.22 (-0.71%) As of 11:58 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Alcoa Short Interest DataAlcoa (AA) has a short interest of 16.13 million shares, representing 6.23% of the float (the number of shares available for trading by the public). This marks a 10.56% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.6, indicating that it would take 2.6 days of the average trading volume of 5.95 million shares to cover all short positions.Current Short Interest16,130,000 sharesPrevious Short Interest14,590,000 sharesChange Vs. Previous Month+10.56%Dollar Volume Sold Short$483.37 millionShort Interest Ratio2.6 Days to CoverLast Record DateJuly 31, 2025Outstanding Shares258,900,000 sharesShort Percent of Float6.23%Today's Trading Volume1,083,044 sharesAverage Trading Volume5,947,369 sharesToday's Volume Vs. Average18% Short Selling Alcoa? Sign up to receive the latest short interest report for Alcoa and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAA Short Interest Over TimeAA Days to Cover Over TimeAA Percentage of Float Shorted Over Time Alcoa Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/31/202516,130,000 shares $483.37 million +10.6%6.2%2.6 $29.97 7/15/202514,590,000 shares $416.31 million -15.0%N/A2.3 $28.53 6/30/202517,160,000 shares $507.42 million +18.8%6.6%2.6 $29.57 6/15/202514,450,000 shares $409.60 million +41.3%5.6%2.2 $28.35 5/31/202510,230,000 shares $273.65 million -13.0%4.0%1.6 $26.75 5/15/202511,760,000 shares $338.22 million -4.0%4.5%1.9 $28.76 4/30/202512,250,000 shares $300.74 million -20.3%N/A2.1 $24.55 4/15/202515,370,000 shares $379.12 million +38.8%5.9%2.6 $24.67 3/31/202511,070,000 shares $337.68 million +3.4%4.3%2 $30.50 3/15/202510,710,000 shares $359.38 million -6.2%4.1%2.2 $33.56 Get the Latest News and Ratings for AA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alcoa and its competitors with MarketBeat's FREE daily newsletter. 2/28/202511,420,000 shares $379.49 million No Change4.4%2.4 $33.23 2/15/202511,420,000 shares $413.80 million +34.4%4.4%2.5 $36.24 1/31/20258,500,000 shares $300.53 million -6.5%N/A1.8 $35.36 1/15/20259,090,000 shares $347.15 million +10.3%N/A2 $38.19 12/31/20248,240,000 shares $311.31 million -1.1%N/A1.8 $37.78 12/15/20248,330,000 shares $325.87 million -1.4%N/A1.7 $39.12 11/30/20248,450,000 shares $392.33 million -4.0%N/A1.7 $46.43 11/15/20248,800,000 shares $387.38 million +0.2%N/A1.7 $44.02 10/31/20248,780,000 shares $351.86 million -5.7%N/A1.7 $40.08 10/15/20249,310,000 shares $384.60 million -6.9%N/A1.6 $41.31 9/30/202410,000,000 shares $385.70 million +3.0%N/A1.6 $38.57 9/15/20249,710,000 shares $315.77 million -14.6%N/A1.6 $32.52 8/31/202411,370,000 shares $364.98 million -12.6%N/A2 $32.10 8/15/202413,010,000 shares $417.62 million -20.1%N/A2.3 $32.10 7/31/202416,290,000 shares $538.06 million +48.6%N/A2.8 $33.03 7/15/202410,960,000 shares $430.84 million -9.4%6.2%2.1 $39.31 6/30/202412,090,000 shares $480.94 million -5.3%6.8%2.2 $39.78 6/15/202412,770,000 shares $483.98 million +2.2%7.2%2.2 $37.90 5/31/202412,500,000 shares $553.50 million +0.2%7.0%2.1 $44.28 5/15/202412,480,000 shares $499.82 million +2.2%7.0%2 $40.05 4/30/202412,210,000 shares $428.94 million -20.8%6.9%1.9 $35.13 4/15/202415,410,000 shares $563.54 million +7.2%8.7%2.4 $36.57 3/31/202414,370,000 shares $485.56 million +9.0%8.1%2.3 $33.79 3/15/202413,180,000 shares $402.06 million +11.3%7.4%2.2 $30.51 2/29/202411,840,000 shares $321.93 million +5.5%6.7%1.8 $27.19 2/15/202411,220,000 shares $307.26 million -4.4%6.3%1.8 $27.39 1/31/202411,740,000 shares $349.15 million +7.5%6.7%2 $29.74 1/15/202410,920,000 shares $327.93 million -6.8%6.2%1.8 $30.03 12/31/202311,710,000 shares $398.14 million -8.4%6.6%2 $34.00 12/15/202312,790,000 shares $397.77 million +14.7%7.2%2.1 $31.10BREAKING: The House just passed 3 pro-crypto bills! 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Discover the under-the-radar project I believe will skyrocket as a result. 11/30/202311,150,000 shares $299.49 million -5.7%6.3%2 $26.86 11/15/202311,820,000 shares $318.67 million -10.9%6.7%2.1 $26.96 10/31/202313,270,000 shares $340.51 million +3.8%7.5%2.2 $25.66 10/15/202312,780,000 shares $339.69 million +9.1%7.2%2.1 $26.58 9/30/202311,710,000 shares $340.29 million +11.3%6.6%2 $29.06 9/15/202310,520,000 shares $303.50 million -12.3%6.0%1.8 $28.85 8/31/202312,000,000 shares $360.84 million +24.0%6.8%2.1 $30.07 8/15/20239,680,000 shares $293.69 million -0.1%5.5%1.8 $30.34 7/31/20239,690,000 shares $350.68 million +6.1%5.5%2 $36.19 7/15/20239,130,000 shares $315.17 million +15.9%5.2%1.9 $34.52 6/30/20237,880,000 shares $267.37 million +17.1%4.5%1.7 $33.93 6/15/20236,730,000 shares $242.15 million +6.8%3.8%1.5 $35.98 5/31/20236,300,000 shares $199.84 million -22.5%3.6%1.3 $31.72 5/15/20238,130,000 shares $300.73 million +39.9%4.6%1.7 $36.99 4/30/20235,810,000 shares $215.78 million -20.0%3.3%1.2 $37.14 4/15/20237,260,000 shares $293.30 million +25.4%4.1%1.4 $40.40 3/31/20235,790,000 shares $246.42 million -24.8%3.3%1.1 $42.56 3/15/20237,700,000 shares $306.23 million +1.1%4.4%1.5 $39.77 2/28/20237,620,000 shares $372.92 million +7.0%4.3%1.6 $48.94 2/15/20237,120,000 shares $344.68 million +4.4%4.1%1.5 $48.41 1/31/20236,820,000 shares $356.28 million -1.3%3.9%1.4 $52.24 1/15/20236,910,000 shares $377.36 million +13.1%3.9%1.2 $54.61 12/30/20226,110,000 shares $277.82 million -6.6%3.5%1 $45.47 12/15/20226,540,000 shares $282.99 million -0.5%3.7%1 $43.27 11/30/20226,570,000 shares $329.35 million -37.8%3.8%0.9 $50.13 11/15/202210,560,000 shares $519.66 million +22.1%6.0%1.4 $49.21 10/31/20228,650,000 shares $337.61 million +6.3%4.9%1.2 $39.03 10/15/20228,140,000 shares $312.17 million -16.5%4.6%1.1 $38.35 9/30/20229,750,000 shares $328.19 million +1.0%5.5%1.5 $33.66 9/15/20229,650,000 shares $416.30 million -11.7%5.4%1.6 $43.14 8/31/202210,930,000 shares $540.82 million +39.8%6.1%1.8 $49.48 8/15/20227,820,000 shares $404.29 million +3.4%4.4%1.3 $51.70 7/31/20227,560,000 shares $384.73 million -19.1%4.2%1.2 $50.89 7/15/20229,340,000 shares $402.18 million -17.5%5.1%1.3 $43.06 6/30/202211,320,000 shares $515.97 million +7.4%6.2%1.6 $45.58 6/15/202210,540,000 shares $538.70 million +21.6%5.8%1.5 $51.11 5/31/20228,670,000 shares $535.11 million +10.3%4.7%1.2 $61.72 5/15/20227,860,000 shares $458.47 million -4.4%4.3%1 $58.33 4/30/20228,220,000 shares $557.32 million +2.6%4.5%1 $67.80 4/15/20228,010,000 shares $703.04 million -10.3%4.4%1 $87.77 3/31/20228,930,000 shares $803.97 million +11.2%4.9%1.1 $90.03 3/15/20228,030,000 shares $591.89 million -14.0%4.4%1 $73.71 2/28/20229,340,000 shares $703.68 million -5.3%5.1%1.1 $75.34 2/15/20229,860,000 shares $730.03 million +1.8%5.4%1.2 $74.04 1/31/20229,690,000 shares $549.52 million -14.5%5.3%1.2 $56.71 1/15/202211,330,000 shares $695.55 million -23.2%6.1%1.4 $61.39 12/31/202114,750,000 shares $878.81 million +32.8%8.0%1.7 $59.58 12/15/202111,110,000 shares $566.28 million +14.2%6.0%1.3 $50.97 11/30/20219,730,000 shares $452.74 million -0.3%5.2%1.2 $46.53 11/15/20219,760,000 shares $494.15 million +17.6%5.3%1.2 $50.63BREAKING: The House just passed 3 pro-crypto bills! 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Discover the under-the-radar project I believe will skyrocket as a result. 10/29/20218,300,000 shares $381.39 million -10.2%4.5%1 $45.95 10/15/20219,240,000 shares $517.44 million -1.4%5.0%1.2 $56.00 9/30/20219,370,000 shares $458.57 million -23.2%5.1%1.2 $48.94 9/15/202112,200,000 shares $630.50 million +10.1%6.6%1.5 $51.68 8/31/202111,080,000 shares $491.62 million -10.1%6.0%1.4 $44.37 8/13/202112,320,000 shares $557.48 million +2.6%6.7%1.6 $45.25 7/30/202112,010,000 shares $482.20 million +5.1%6.5%1.6 $40.15 7/15/202111,430,000 shares $394.79 million +10.1%6.2%1.5 $34.54 6/30/202110,380,000 shares $382.40 million +3.8%5.6%1.4 $36.84 6/15/202110,000,000 shares $362.90 million +5.0%5.4%1.5 $36.29 5/28/20219,520,000 shares $377.66 million -6.4%5.2%1.5 $39.67 5/14/202110,170,000 shares $397.95 million +9.4%5.5%1.4 $39.13 4/30/20219,300,000 shares $345.68 million -2.2%5.0%1.4 $37.17 4/15/20219,510,000 shares $317.54 million -3.5%5.2%1.3 $33.39 3/31/20219,850,000 shares $324.75 million -10.3%5.3%1.5 $32.97 3/15/202110,980,000 shares $345.98 million +7.9%5.9%1.7 $31.51 2/26/202110,180,000 shares $260.20 million -1.2%5.5%1.6 $25.56 2/12/202110,300,000 shares $220.32 million -7.6%5.6%1.7 $21.39 1/29/202111,150,000 shares $206.28 million +27.3%6.1%1.9 $18.50 1/15/20218,760,000 shares $219.79 million -0.7%4.7%1.6 $25.09 12/31/20208,820,000 shares $202.42 million -11.2%4.8%1.6 $22.95 12/15/20209,930,000 shares $216.08 million +7.9%5.4%1.7 $21.76 11/30/20209,200,000 shares $188.42 million -5.8%5.0%1.6 $20.48 11/15/20209,770,000 shares $161.89 million -3.0%5.3%1.8 $16.57 10/30/202010,070,000 shares $128.39 million -9.5%5.5%2 $12.75 10/15/202011,130,000 shares $144.69 million -11.6%6.0%2.1 $13.00 9/30/202012,590,000 shares $146.42 million -1.5%6.8%2.2 $11.63 9/15/202012,780,000 shares $176.11 million -2.0%6.9%2 $13.78 8/31/202013,040,000 shares $190.64 million -16.4%7.1%1.9 $14.62 AA Short Interest - Frequently Asked Questions What is Alcoa's current short interest? Short interest is the volume of Alcoa shares that have been sold short but have not yet been closed out or covered. As of July 31st, traders have sold 16,130,000 shares of AA short. 6.23% of Alcoa's shares are currently sold short. Learn More on Alcoa's current short interest. What is a good short interest ratio for Alcoa? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. AA shares currently have a short interest ratio of 3.0. Learn More on Alcoa's short interest ratio. Which institutional investors are shorting Alcoa? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Alcoa: Jane Street Group LLC, Caption Management LLC, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Walleye Capital LLC, Walleye Trading LLC, Capital Fund Management S.A., JPMorgan Chase & Co., Twin Tree Management LP, and Quaker Wealth Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Alcoa? Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 6.23% of Alcoa's floating shares are currently sold short. Is Alcoa's short interest increasing or decreasing? Alcoa saw a increase in short interest in July. As of July 31st, there was short interest totaling 16,130,000 shares, an increase of 10.6% from the previous total of 14,590,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does Alcoa's short interest compare to its competitors? 6.23% of Alcoa's shares are currently sold short. Here is how the short interest of companies compare to Alcoa: Century Aluminum Company (12.99%), Kaiser Aluminum Corporation (2.88%), Freeport-McMoRan Inc. (2.26%), HudBay Minerals Inc (4.07%), Southern Copper Corporation (10.35%), Teck Resources Ltd (2.92%), Constellium SE (3.03%), Ryerson Holding Corporation (3.62%), Greenwave Technology Solutions, Inc. (2.00%), Ingersoll Rand Inc. (3.17%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), MicroStrategy Incorporated ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks. What does it mean to sell short Alcoa stock? Short selling AA is an investing strategy that aims to generate trading profit from Alcoa as its price is falling. AA shares are trading down $0.34 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Alcoa? A short squeeze for Alcoa occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of AA, which in turn drives the price of the stock up even further. How often is Alcoa's short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including AA, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Century Aluminum Short Interest Kaiser Aluminum Short Interest Freeport-McMoRan Short Interest HudBay Minerals Short Interest Southern Copper Short Interest Teck Resources Short Interest Constellium Short Interest Ryerson Short Interest Greenwave Technology Solutions Short Interest Ingersoll Rand Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:AA) was last updated on 8/15/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. 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