Alto Neuroscience (ANRO) Short Interest Ratio & Short Volume $2.24 -0.01 (-0.22%) Closing price 04/17/2025 03:59 PM EasternExtended Trading$2.29 +0.04 (+2.00%) As of 04/17/2025 04:58 PM 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Alto Neuroscience Short Interest DataAlto Neuroscience (ANRO) has a short interest of 3.69 million shares, representing 15.96% of the float (the number of shares available for trading by the public). This marks a -1.86% decrease in short interest from the previous month. The short interest ratio (days to cover) is 11.6, indicating that it would take 11.6 days of the average trading volume of 374,856 shares to cover all short positions.Current Short Interest3,690,000 sharesPrevious Short Interest3,760,000 sharesChange Vs. Previous Month-1.86%Dollar Volume Sold Short$7.99 millionShort Interest Ratio11.6 Days to CoverLast Record DateMarch 31, 2025Outstanding Shares27,072,000 sharesFloat Size23,120,000 sharesShort Percent of Float15.96%Today's Trading Volume148,826 sharesAverage Trading Volume374,856 sharesToday's Volume Vs. Average40% Short Selling Alto Neuroscience? Sign up to receive the latest short interest report for Alto Neuroscience and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartANRO Short Interest Over TimeANRO Days to Cover Over TimeANRO Percentage of Float Shorted Over Time Alto Neuroscience Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 3/31/20253,690,000 shares $7.99 million -1.9%16.0%11.6 $2.17 3/15/20253,760,000 shares $11.94 million +1.1%16.3%12.4 $3.18 2/28/20253,720,000 shares $10.42 million -6.5%16.2%11.5 $2.80 2/15/20253,980,000 shares $13.39 million -1.7%17.3%14.9 $3.37 1/31/20254,050,000 shares $17.41 million No Change17.7%12.9 $4.30 1/15/20254,050,000 shares $17.46 million +2.0%17.7%5.9 $4.31 12/31/20243,970,000 shares $16.79 million -2.5%17.3%5.5 $4.23 12/15/20244,070,000 shares $15.59 million -0.3%18.5%5.5 $3.83 11/30/20244,080,000 shares $17.99 million -12.5%18.6%5.2 $4.41 11/15/20244,660,000 shares $21.06 million +1.1%21.2%6 $4.52 10/31/20244,610,000 shares $17.93 million -13.8%20.8%6.3 $3.89 10/15/20245,350,000 shares $75.70 million +29.9%24.1%8.1 $14.15 9/30/20244,120,000 shares $47.05 million +26.0%18.6%13.6 $11.42 9/15/20243,270,000 shares $44.54 million +6.9%14.7%11.7 $13.62 8/31/20243,060,000 shares $39.20 million -1.9%13.8%14.7 $12.81 8/15/20243,120,000 shares $29.30 million -15.0%14.1%17 $9.39 7/31/20243,670,000 shares $39.65 million +7.3%16.6%21.7 $10.81 7/15/20243,420,000 shares $49.59 million No Change15.5%27.4 $14.50 ANRO Short Interest - Frequently Asked Questions What is Alto Neuroscience's current short interest? Short interest is the volume of Alto Neuroscience shares that have been sold short but have not yet been covered or closed out. As of March 31st, investors have sold 3,690,000 shares of ANRO short. 15.96% of Alto Neuroscience's shares are currently sold short. Learn More on Alto Neuroscience's current short interest. What is a good short interest ratio for Alto Neuroscience? 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. ANRO shares currently have a short interest ratio of 12.0. Learn More on Alto Neuroscience's short interest ratio. Which institutional investors are shorting Alto Neuroscience? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Alto Neuroscience: Group One Trading LLC, Citadel Advisors LLC, Concourse Financial Group Securities Inc., and ADAR1 Capital Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Alto Neuroscience? 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. 15.96% of Alto Neuroscience's floating shares are currently sold short. Is Alto Neuroscience's short interest increasing or decreasing? Alto Neuroscience saw a drop in short interest during the month of March. As of March 31st, there was short interest totaling 3,690,000 shares, a drop of 1.9% from the previous total of 3,760,000 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. What is Alto Neuroscience's float size? Alto Neuroscience currently has issued a total of 27,072,000 shares. Some of Alto Neuroscience's 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. Alto Neuroscience currently has a public float of 23,120,000 shares. How does Alto Neuroscience's short interest compare to its competitors? 15.96% of Alto Neuroscience's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Alto Neuroscience: Solid Biosciences Inc. (12.85%), Alpha Teknova, Inc. (23.91%), enGene Holdings Inc. (0.17%), Atea Pharmaceuticals, Inc. (4.46%), Esperion Therapeutics, Inc. (14.42%), Acelyrin, Inc. (4.99%), Candel Therapeutics, Inc. (12.93%), Aurora Cannabis Inc. (9.02%), Immutep Limited (3.21%), Olema Pharmaceuticals, Inc. (14.07%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.93 billion), iShares 20+ Year Treasury Bond ETF ($9.31 billion), Strategy Incorporated ($8.42 billion), Charter Communications, Inc. ($4.52 billion), Apollo Global Management, Inc. ($4.26 billion), Super Micro Computer, Inc. ($3.98 billion), Capital One Financial Co. ($3.79 billion), TC Energy Co. ($3.43 billion), AppLovin Co. ($2.91 billion), and Schlumberger Limited ($2.89 billion). View all of the most shorted stocks. What does it mean to sell short Alto Neuroscience stock? Short selling ANRO is an investing strategy that aims to generate trading profit from Alto Neuroscience as its price is falling. ANRO shares are trading down $0.01 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 Alto Neuroscience? A short squeeze for Alto Neuroscience occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of ANRO, which in turn drives the price of the stock up even further. How often is Alto Neuroscience'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 ANRO, twice per month. The most recent reporting period available is March, 31 2025. More Short Interest Resources from MarketBeat Related Companies Solid Biosciences Short Interest Data Alpha Teknova Short Interest Data enGene Short Interest Data Atea Pharmaceuticals Short Interest Data Esperion Therapeutics Short Interest Data Acelyrin Short Interest Data Candel Therapeutics Short Interest Data Aurora Cannabis Short Interest Data Immutep Short Interest Data Olema Pharmaceuticals 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 (NYSE:ANRO) was last updated on 4/18/2025 by MarketBeat.com Staff From Our PartnersElon Reveals Why There Soon Won’t Be Any Money For Social SecurityElon Musk's Near-Death Experience Sparks Dire Warning for Americans After cheating death twice—once in a te...Colonial Metals | SponsoredThe Crypto Market is About to Change LivesI've discovered something so significant about the 2025 crypto market that I had to put everything else aside ...Crypto 101 Media | SponsoredCrypto’s crashing…but we’re still profitingMost traders are panicking right now. 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