Alterity Therapeutics (ATHE) Short Interest Ratio & Short Volume $4.54 +0.08 (+1.68%) As of 11:05 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsFDA EventsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Alterity Therapeutics Short Interest DataAlterity Therapeutics (ATHE) has a short interest of 128,900 shares, representing 0.89% of the float (the number of shares available for trading by the public). This marks a 10.36% increase in short interest from the previous month. The short interest ratio (days to cover) is 3.0, indicating that it would take 3.0 days of the average trading volume of 146,716 shares to cover all short positions.Current Short Interest128,900 sharesPrevious Short Interest116,800 sharesChange Vs. Previous Month+10.36%Dollar Volume Sold Short$527.20 thousandShort Interest Ratio3.0 Days to CoverLast Record DateJune 30, 2025Outstanding Shares8,870,000 sharesFloat Size14,500,000 sharesShort Percent of Float0.89%Today's Trading Volume3,865 sharesAverage Trading Volume146,716 sharesToday's Volume Vs. Average3% Short Selling Alterity Therapeutics? Sign up to receive the latest short interest report for Alterity Therapeutics and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartATHE Short Interest Over TimeATHE Days to Cover Over TimeATHE Percentage of Float Shorted Over Time Alterity Therapeutics Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/2025128,900 shares $527.20 thousand +10.4%0.9%3 $4.09 6/15/2025116,800 shares $513.92 thousand -8.6%0.8%2.8 $4.40 5/31/2025127,800 shares $569.99 thousand +2.9%0.9%3.2 $4.46 5/15/2025124,200 shares $470.72 thousand +147.9%0.9%2.9 $3.79 4/30/202550,100 shares $173.35 thousand -11.8%0.4%1.1 $3.46 4/15/202556,800 shares $187.44 thousand +32.7%0.4%0.1 $3.30 3/31/202542,800 shares $145.13 thousand -21.6%0.3%0.1 $3.39 3/15/202554,600 shares $215.12 thousand -46.4%0.5%0.1 $3.94 2/28/2025101,800 shares $403.54 thousand -36.2%1.0%0.2 $3.96 2/15/2025159,500 shares $704.99 thousand -71.2%1.5%0.4 $4.42 Get the Latest News and Ratings for ATHE and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alterity Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 1/31/2025553,500 shares $2.66 million +556.6%6.4%1.2 $4.80 1/15/202584,300 shares $279.03 thousand -49.6%1.0%1.3 $3.31 12/31/2024167,300 shares $553.76 thousand +12.6%2.0%2.6 $3.31 12/15/2024148,600 shares $356.64 thousand +7,330.0%1.8%3.2 $2.40 11/30/20242,000 shares $2.82 thousand -46.0%0.0%0 $1.41 11/15/20243,700 shares $4.09 thousand +2.8%0.0%0.3 $1.11 10/31/20243,600 shares $4.14 thousand -41.9%0.0%0.3 $1.15 10/15/20246,200 shares $7.81 thousand -36.1%0.1%0.4 $1.26 9/30/20249,700 shares $12.73 thousand -22.4%0.1%0.3 $1.31 9/15/202412,500 shares $15.75 thousand -40.5%0.2%0.4 $1.26 8/31/202421,000 shares $31.29 thousand -8.7%0.3%0.6 $1.49 8/15/202423,000 shares $31.74 thousand -18.2%0.3%0.7 $1.38 7/31/202428,100 shares $44.96 thousand +57.0%0.3%0.8 $1.60 7/15/202417,900 shares $35.98 thousand +33.6%0.2%0.4 $2.01 6/30/202413,400 shares $24.25 thousand -40.4%0.2%0.2 $1.81 6/15/202422,500 shares $41.85 thousand +8.2%0.3%0.3 $1.86 5/31/202420,800 shares $38.90 thousand -40.6%0.3%0.3 $1.87 5/15/202435,000 shares $71.40 thousand -59.3%0.4%0.4 $2.04 4/30/202485,900 shares $179.96 thousand -4.9%1.0%1.1 $2.10 4/15/202490,300 shares $221.24 thousand +290.9%1.1%1.1 $2.45 3/31/202423,100 shares $47.82 thousand -12.5%0.3%0.6 $2.07 3/15/202426,400 shares $46.46 thousand +47.5%0.3%0.6 $1.76 2/29/202417,900 shares $33.47 thousand -52.7%0.2%0.3 $1.87 2/15/202437,800 shares $76.36 thousand +25.6%0.5%0.1 $2.02 1/31/202430,100 shares $63.51 thousand +85.8%N/A0 $2.11 1/15/202416,200 shares $30.78 thousand -77.0%0.3%0 $1.90 12/31/202370,500 shares $175.55 thousand +22.8%1.2%0.1 $2.49 12/15/202357,400 shares $173.92 thousand +12.6%1.3%0.1 $3.03 11/30/202351,000 shares $92.31 thousand +684.6%1.2%0.1 $1.81 11/15/20236,500 shares $15.93 thousand -11.0%0.2%1.2 $2.45Revolutionary AI Tech Targets Early Diabetic Blindness Detection FDA Trial Underway (Ad)Tiny Stock, Massive Potential— this company’s AI platform is a game changer for healthcare!Discover how this tiny tech firm is using AI in healthcare 10/31/20237,300 shares $17.02 thousand -32.4%0.2%2.6 $2.33 10/15/202310,800 shares $26.24 thousand -12.9%0.3%3.4 $2.43 9/30/202312,400 shares $30.75 thousand -13.3%0.3%3.2 $2.48 9/15/202314,300 shares $37.18 thousand -14.4%0.4%3.6 $2.60 8/31/202316,700 shares $45.26 thousand -13.0%0.4%3.9 $2.71 8/15/202319,200 shares $54.53 thousand +12.9%0.5%4 $2.84 7/31/202317,000 shares $49.30 thousand +54.6%0.4%3.7 $2.90 7/15/202311,000 shares $31.13 thousand +15.8%0.3%2.3 $2.83 6/30/20239,500 shares $26.51 thousand -41.7%0.2%2.2 $2.79 6/15/202316,300 shares $47.11 thousand +6.5%0.4%2.3 $2.89 5/31/202315,300 shares $44.52 thousand +1.3%0.4%0.9 $2.91 5/15/202315,100 shares $43.79 thousand +0.7%0.4%0.9 $2.90 4/30/202315,000 shares $42.00 thousand -35.3%0.4%0.7 $2.80 4/15/202323,200 shares $66.82 thousand -27.3%0.6%1 $2.88 3/31/202331,900 shares $88.68 thousand +423.0%0.8%1.1 $2.78 3/15/20236,100 shares $15.92 thousand -14.1%0.2%0.2 $2.61 2/28/20237,100 shares $22.79 thousand +6.0%0.2%0.4 $3.21 2/15/20236,700 shares $20.17 thousand -22.1%0.2%0.4 $3.01 1/31/20238,600 shares $33.63 thousand -34.4%0.2%0.5 $3.91 1/15/202313,100 shares $54.37 thousand +10.1%0.3%1 $4.15 12/30/202211,900 shares $41.44 thousand -90.5%N/A1.1 $3.48 12/15/2022125,500 shares $40.17 thousand -3.9%N/A2.2 $0.32 11/30/2022130,600 shares $47.33 thousand -15.3%N/A1.5 $0.36 11/15/2022154,100 shares $61.64 thousand -33.1%N/A1.6 $0.40 10/31/2022230,200 shares $90.45 thousand -6.9%N/A2.3 $0.39 10/15/2022247,200 shares $113.69 thousand -2.4%N/A2.3 $0.46 9/30/2022253,200 shares $111.43 thousand -4.3%N/A2.3 $0.44 9/15/2022264,700 shares $153.47 thousand +22.5%N/A2.3 $0.58 8/31/2022216,100 shares $121.04 thousand +27.5%N/A2.5 $0.56 8/15/2022169,500 shares $105.12 thousand -34.9%N/A2.3 $0.62 7/31/2022260,300 shares $156.96 thousand +0.4%N/A3.5 $0.60 7/15/2022259,300 shares $163.36 thousand +9.7%N/A2.8 $0.63 6/30/2022236,400 shares $144.44 thousand +36.5%N/A2.8 $0.61 6/15/2022173,200 shares $107.42 thousand -30.2%N/A2 $0.62 5/31/2022248,000 shares $166.16 thousand -13.9%N/A2.8 $0.67 5/15/2022287,900 shares $190.76 thousand -25.4%N/A2.7 $0.66 4/30/2022385,700 shares $284.30 thousand +63.5%N/A2.9 $0.74 4/15/2022235,900 shares $184.00 thousand -7.6%N/A1.8 $0.78 3/31/2022255,200 shares $211.56 thousand +13.8%N/A0.1 $0.83 3/15/2022224,200 shares $159.74 thousand -37.9%N/A0.1 $0.71 2/28/2022360,800 shares $306.68 thousand -22.9%N/A0.2 $0.85 2/15/2022467,900 shares $427.66 thousand -24.4%N/A0.2 $0.91 1/31/2022619,200 shares $582.23 thousand -44.7%N/A0.3 $0.94 1/15/20221,120,000 shares $909.22 thousand +231.1%N/A0.4 $0.81 12/31/2021338,300 shares $243.58 thousand -16.6%N/A0.1 $0.72 12/15/2021405,600 shares $349.63 thousand -32.1%N/A1 $0.86 11/30/2021597,000 shares $579.09 thousand -2.4%N/A1.3 $0.97 11/15/2021611,900 shares $712.50 thousand -25.9%N/A1.3 $1.16 10/29/2021826,100 shares $1.01 million +19.1%N/A1.6 $1.22 10/15/2021693,500 shares $908.49 thousand -6.4%N/A0.5 $1.31Revolutionary AI Tech Targets Early Diabetic Blindness Detection FDA Trial Underway (Ad)Tiny Stock, Massive Potential— this company’s AI platform is a game changer for healthcare!Discover how this tiny tech firm is using AI in healthcare 9/30/2021740,700 shares $940.69 thousand -13.0%N/A0.4 $1.27 9/15/2021851,600 shares $1.10 million +1.1%N/A0.1 $1.29 8/31/2021842,100 shares $1.15 million -11.4%N/A0.1 $1.36 8/13/2021950,600 shares $1.28 million -8.6%N/A0.1 $1.35 7/30/20211,040,000 shares $1.34 million -9.6%N/A0.2 $1.29 7/15/20211,150,000 shares $1.73 million +108.0%N/A0.2 $1.50 6/30/2021552,800 shares $718.64 thousand -13.4%N/A0.1 $1.30 6/15/2021638,400 shares $874.61 thousand +9.6%N/A0.4 $1.37 5/28/2021582,300 shares $780.28 thousand -9.3%N/A0.4 $1.34 5/14/2021642,200 shares $732.11 thousand -28.3%N/A0.4 $1.14 4/30/2021895,500 shares $1.33 million +304.1%N/A0.5 $1.49 4/15/2021221,600 shares $292.51 thousand +31.0%N/A0.1 $1.32 3/31/2021169,200 shares $240.26 thousand +18.0%N/A0.3 $1.42 3/15/2021143,400 shares $246.65 thousand +412.1%N/A0.2 $1.72 2/26/202128,000 shares $47.32 thousand -71.6%N/A0 $1.69 2/12/202198,700 shares $203.32 thousand +961.3%N/A0.1 $2.06 1/29/20219,300 shares $15.72 thousand -90.6%N/A0 $1.69 1/15/202199,200 shares $174.59 thousand +91.1%N/A0 $1.76 12/31/202051,900 shares $72.66 thousand -10.1%N/A0 $1.40 12/15/202057,700 shares $86.55 thousand -84.0%N/A0 $1.50 11/30/2020360,800 shares $559.24 thousand +574.4%N/A0.2 $1.55 11/15/202053,500 shares $61.53 thousand +29.5%N/A0 $1.15 10/30/202041,300 shares $56.99 thousand +1,232.3%N/A0.4 $1.38 10/15/20203,100 shares $6.29 thousand -40.4%N/A0 $2.03 9/30/20205,200 shares $10.50 thousand -82.7%N/A0 $2.02 9/15/202030,000 shares $62.10 thousand -86.2%N/A0 $2.07 ATHE Short Interest - Frequently Asked Questions What is Alterity Therapeutics' current short interest? Short interest is the volume of Alterity Therapeutics shares that have been sold short but have not yet been closed out or covered. As of June 30th, investors have sold 128,900 shares of ATHE short. 0.89% of Alterity Therapeutics' shares are currently sold short. Learn More on Alterity Therapeutics' current short interest. What is a good short interest ratio for Alterity Therapeutics? 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. ATHE shares currently have a short interest ratio of 3.0. Learn More on Alterity Therapeutics's short interest ratio. What is a good short interest percentage for Alterity Therapeutics? 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. 0.89% of Alterity Therapeutics' floating shares are currently sold short. Is Alterity Therapeutics' short interest increasing or decreasing? Alterity Therapeutics saw a increase in short interest in June. As of June 30th, there was short interest totaling 128,900 shares, an increase of 10.4% from the previous total of 116,800 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. What is Alterity Therapeutics' float size? Alterity Therapeutics currently has issued a total of 8,870,000 shares. Some of Alterity Therapeutics' outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Alterity Therapeutics currently has a public float of 14,500,000 shares. How does Alterity Therapeutics' short interest compare to its competitors? 0.89% of Alterity Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Alterity Therapeutics: Theratechnologies Inc. (0.60%), Black Diamond Therapeutics, Inc. (10.87%), ALT5 Sigma Corporation (5.67%), Lyell Immunopharma, Inc. (4.00%), Inhibikase Therapeutics, Inc. (4.93%), Skye Bioscience, Inc. (14.95%), Galectin Therapeutics Inc. (17.94%), Greenwich LifeSciences, Inc. (17.20%), Rapt Therapeutics (3.09%), Neumora Therapeutics, Inc. (16.13%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short Alterity Therapeutics stock? Short selling ATHE is an investing strategy that aims to generate trading profit from Alterity Therapeutics as its price is falling. ATHE shares are trading up $0.08 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 Alterity Therapeutics? A short squeeze for Alterity Therapeutics 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 ATHE, which in turn drives the price of the stock up even further. How often is Alterity Therapeutics' 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 ATHE, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies Theratechnologies Short Interest Data Black Diamond Therapeutics Short Interest Data ALT5 Sigma Short Interest Data Lyell Immunopharma Short Interest Data Inhibikase Therapeutics Short Interest Data Skye Bioscience Short Interest Data Galectin Therapeutics Short Interest Data Greenwich LifeSciences Short Interest Data Rapt Therapeutics Short Interest Data Neumora Therapeutics Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:ATHE) was last updated on 7/16/2025 by MarketBeat.com Staff From Our PartnersMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredRevolutionary AI Tech Targets Early Diabetic Blindness Detection FDA Trial UnderwayTiny Stock, Massive Potential— this company’s AI platform is a game changer for healthcare!Interactive Offers | SponsoredINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | Sponsored3..2..1.. 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