Alterity Therapeutics (ATHE) Short Interest Ratio & Short Volume $5.14 -0.16 (-3.02%) Closing price 08/13/2025 03:59 PM EasternExtended Trading$5.23 +0.09 (+1.73%) As of 04:05 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours 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 155,100 shares, representing 1.06% of the float (the number of shares available for trading by the public). This marks a 20.33% increase in short interest from the previous month. The short interest ratio (days to cover) is 2.4, indicating that it would take 2.4 days of the average trading volume of 175,209 shares to cover all short positions.Current Short Interest155,100 sharesPrevious Short Interest128,900 sharesChange Vs. Previous Month+20.33%Dollar Volume Sold Short$693.30 thousandShort Interest Ratio2.4 Days to CoverLast Record DateJuly 15, 2025Outstanding Shares8,867,000 sharesFloat Size14,630,000 sharesShort Percent of Float1.06%Today's Trading Volume18,738 sharesAverage Trading Volume175,209 sharesToday's Volume Vs. Average11% 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 7/15/2025155,100 shares $693.30 thousand +20.3%1.1%2.4 $4.47 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 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. 2/15/2025159,500 shares $704.99 thousand -71.2%1.5%0.4 $4.42 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 $1.81Trump’s national nightmare is here (Ad)Porter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger the biggest forced rotation of capital since World War II. They reveal why Trump is mobilizing America’s tech giants… and name the two stocks most likely to soar as trillions shift behind the scenes.Watch the National Emergency broadcast here 11/15/20236,500 shares $15.93 thousand -11.0%0.2%1.2 $2.45 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 $1.22Trump’s national nightmare is here (Ad)Porter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger the biggest forced rotation of capital since World War II. They reveal why Trump is mobilizing America’s tech giants… and name the two stocks most likely to soar as trillions shift behind the scenes.Watch the National Emergency broadcast here 10/15/2021693,500 shares $908.49 thousand -6.4%N/A0.5 $1.31 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 July 15th, traders have sold 155,100 shares of ATHE short. 1.06% 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 2.0. 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. 1.06% 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 the month of July. As of July 15th, there was short interest totaling 155,100 shares, an increase of 20.3% from the previous total of 128,900 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 8,867,000 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 14,630,000 shares. How does Alterity Therapeutics' short interest compare to its competitors? 1.06% 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: GENFIT S.A. Unsponsored ADR (0.07%), CytomX Therapeutics, Inc. (29.61%), Eupraxia Pharmaceuticals Inc. (0.60%), enGene Holdings Inc. (0.11%), Puma Biotechnology, Inc. (6.99%), Editas Medicine, Inc. (10.18%), China SXT Pharmaceuticals, Inc. (0.04%), Instil Bio, Inc. (33.93%), ALT5 Sigma Corporation (6.62%), C4 Therapeutics, Inc. (5.72%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Coinbase Global, Inc. ($5.11 billion), Charter Communications, Inc. ($4.76 billion), Reddit Inc. ($2.84 billion), SoFi Technologies, Inc. ($2.79 billion), Seagate Technology Holdings PLC ($2.79 billion), Live Nation Entertainment, Inc. ($2.67 billion), Rocket Lab Corporation ($2.49 billion), AST SpaceMobile, Inc. ($2.12 billion), Moderna, Inc. ($2.09 billion), and Omnicom Group Inc. ($2.04 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 down $0.16 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 July, 15 2025. More Short Interest Resources from MarketBeat Related Companies GENFIT Short Interest Data CytomX Therapeutics Short Interest Data Eupraxia Pharmaceuticals Short Interest Data enGene Short Interest Data Puma Biotechnology Short Interest Data Editas Medicine Short Interest Data China SXT Pharmaceuticals Short Interest Data Instil Bio Short Interest Data ALT5 Sigma Short Interest Data C4 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 8/14/2025 by MarketBeat.com Staff From Our PartnersHIDDEN IN THE BOOK OF GENESIS…“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...Paradigm Press | SponsoredWhen the levee breaksThe U.S. Treasury just confirmed it plans to borrow $1.01 trillion this quarter—nearly double what was project...Porter & Company | SponsoredUtah’s New Oil FindThe Real Reason 218,000 Acres Just Vanished The government just quietly leased 218,000 acres in the middle ...Stansberry Research | SponsoredCover all your expenses with just $118,000 invested?Generate up to $5,000/month with 10X less money? 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