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Alto Neuroscience (ANRO) Short Interest Ratio & Short Volume

Alto Neuroscience logo
$3.83 -0.29 (-7.04%)
As of 03:47 PM Eastern
This is a fair market value price provided by Polygon.io. Learn more.

Alto Neuroscience Short Interest Data

Alto Neuroscience (ANRO) has a short interest of 2.15 million shares, representing 10.00% of the float (the number of shares available for trading by the public). This marks a 4.88% increase in short interest from the previous month. The short interest ratio (days to cover) is 9.1, indicating that it would take 9.1 days of the average trading volume of 255,992 shares to cover all short positions.

Current Short Interest
2,150,000 shares
Previous Short Interest
2,050,000 shares
Change Vs. Previous Month
+4.88%
Dollar Volume Sold Short
$6.59 million
Short Interest Ratio
9.1 Days to Cover
Last Record Date
July 31, 2025
Outstanding Shares
27,077,000 shares
Float Size
21,490,000 shares
Short Percent of Float
10.00%
Today's Trading Volume
71,382 shares
Average Trading Volume
255,992 shares
Today's Volume Vs. Average
28%
Short Selling Alto Neuroscience?
A Guide To High-Short-Interest Stocks

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Skip Charts & View Short Interest History

ANRO Short Interest Over Time

ANRO Days to Cover Over Time

ANRO Percentage of Float Shorted Over Time

Alto Neuroscience Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/31/20252,150,000 shares $6.59 million +4.9%10.0%9.1 $3.07
7/15/20252,050,000 shares $5.29 million +2.0%9.5%8.1 $2.58
6/30/20252,010,000 shares $4.44 million -28.0%9.4%6.9 $2.21
6/15/20252,790,000 shares $6.74 million -5.1%13.0%11 $2.42
5/31/20252,940,000 shares $7.67 million -2.3%13.7%11.6 $2.61
5/15/20253,010,000 shares $7.34 million -7.7%14.0%9.8 $2.44
4/30/20253,260,000 shares $8.05 million -0.3%14.1%10.3 $2.47
4/15/20253,270,000 shares $7.70 million -11.4%14.1%10.2 $2.36
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 July 31st, investors have sold 2,150,000 shares of ANRO short. 10.00% 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 9.0. 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. 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. 10.00% of Alto Neuroscience's floating shares are currently sold short.

Is Alto Neuroscience's short interest increasing or decreasing?

Alto Neuroscience saw a increase in short interest in the month of July. As of July 31st, there was short interest totaling 2,150,000 shares, an increase of 4.9% from the previous total of 2,050,000 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 27,080,000 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 21,490,000 shares.

How does Alto Neuroscience's short interest compare to its competitors?

10.00% 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: Fulcrum Therapeutics, Inc. (9.98%), Abeona Therapeutics Inc. (18.51%), Capricor Therapeutics, Inc. (27.18%), ADC Therapeutics SA (6.05%), Benitec Biopharma Limited (5.52%), 4D Molecular Therapeutics, Inc. (8.84%), Inhibrx Biosciences, Inc. (6.86%), Candel Therapeutics, Inc. (17.60%), Larimar Therapeutics, Inc. (8.06%), Rocket Pharmaceuticals, Inc. (13.83%),

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), Strategy Inc ($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 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 increases 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 July, 31 2025.




This page (NYSE:ANRO) was last updated on 8/28/2025 by MarketBeat.com Staff
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