Go Pro
→ They didn't warn anyone in 1971. This time someone is warning you. (From Reagan Gold Group) (Ad)tc pixel Free AURA Stock Alerts

Aura Biosciences (AURA) Short Interest Ratio & Short Volume

Aura Biosciences logo
$7.80 +0.03 (+0.39%)
As of 08/21/2026 04:00 PM Eastern
Compare

Aura Biosciences Short Interest Overview

As of July 31, 2026, Aura Biosciences (AURA) had a short interest of 6.36 million shares sold short, representing 6.27% of the public float. This marks a 13.36% increase in short interest since the prior report. The short interest ratio (days to cover) is 18.5, meaning it would take 18.5 days of the average trading volume of 732,608 shares to cover all short positions.

Current Short Interest
6,358,049 shares
Previous Short Interest
5,608,945 shares
Change Vs. Previous Month
13.36%
Dollar Volume Sold Short
$44.57 million
Short Interest Ratio
18.5 Days to Cover
Last Record Date
July 31, 2026
Outstanding Shares
103,710,000 shares
Short Percent of Float
6.27%
Today's Trading Volume
500,881 shares
Average Trading Volume
732,608 shares
Today's Volume Vs. Average
68%
Short Selling Aura Biosciences?
A Guide To High-Short-Interest Stocks

Sign up to receive the latest short interest report for Aura Biosciences and its competitors with MarketBeat's FREE newsletter.

Get Report
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Charts & View Short Interest History
Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AURA Short Interest Over Time

AURA Days to Cover Over Time

AURA Percentage of Float Shorted Over Time

Aura Biosciences Tesla Short Interest History & Recent Changes

Export
Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
7/31/20266,358,049 shares $44.57 million +13.4%6.3%18.46 $7.01
7/15/20265,608,945 shares $39.32 million -19.1%5.5%8.1 $7.01
6/30/20266,932,229 shares $49.22 million +28.7%6.8%9.34 $7.10
6/15/20265,386,870 shares $34.75 million +43.2%5.6%10.32 $6.45
5/29/20263,762,979 shares $28.11 million +19.2%3.9%7.58 $7.47
5/15/20263,156,446 shares $24.43 million +44.0%3.3%2.78 $7.74
4/30/20262,192,556 shares $15.46 million +8.9%3.6%7.97 $7.05
4/15/20262,013,075 shares $14.27 million -23.0%2.1%6.14 $7.09
3/31/20262,615,841 shares $17.50 million +4.3%2.6%8.86 $6.69
3/13/20262,508,348 shares $14.90 million +11.5%4.2%8.88 $5.94
2/27/20262,249,277 shares $13.25 million -22.1%2.3%10.81 $5.89
2/13/20262,885,504 shares $16.07 million -8.8%3.0%15.37 $5.57
1/30/20263,163,686 shares $17.72 million -0.9%5.3%17.47 $5.60
1/15/20263,192,788 shares $16.32 million +0.6%5.4%17.85 $5.11
12/31/20253,172,944 shares $17.29 million +3.7%5.3%15.49 $5.45
12/15/20253,058,660 shares $19.36 million -5.3%5.1%20.53 $6.33
11/28/20253,231,139 shares $21.34 million +10.6%5.4%13.28 $6.61
11/14/20252,922,667 shares $16.16 million 0.0%4.9%14.63 $5.53
10/31/20252,922,993 shares $17.92 million -7.0%5.0%9.66 $6.13
10/15/20253,140,000 shares $19.94 million No Change6.9%13.2 $6.35
9/30/20253,140,000 shares $19.41 million +7.5%7.6%15.8 $6.18
9/15/20252,920,000 shares $17.43 million +4.7%7.0%13.9 $5.97
8/31/20252,790,000 shares $17.47 million +1.8%6.7%15.5 $6.26
8/15/20252,740,000 shares $18.41 million -0.7%6.6%14.7 $6.72
7/31/20252,760,000 shares $19.02 million +1.9%5.9%13 $6.89
7/15/20252,710,000 shares $17.78 million +1.5%5.8%12.8 $6.56
6/30/20252,670,000 shares $16.71 million -1.8%5.7%12 $6.26
6/15/20252,720,000 shares $17.46 million +3.0%5.9%9.2 $6.42
5/31/20252,640,000 shares $15.42 million +10.5%5.7%9.1 $5.84
5/15/20252,390,000 shares $12.38 million +10.7%5.1%8.3 $5.18
4/30/20252,160,000 shares $12.59 million +10.8%4.8%8.1 $5.83
4/15/20251,950,000 shares $10.86 million +37.3%4.4%7.6 $5.57
3/31/20251,420,000 shares $8.32 million +19.3%3.2%5.7 $5.86
3/15/20251,190,000 shares $8.75 million +6.3%2.7%7.2 $7.35
2/28/20251,120,000 shares $8.39 million -13.2%2.5%7.1 $7.49
2/15/20251,290,000 shares $10.26 million +6.6%2.9%7.6 $7.95
1/31/20251,210,000 shares $9.50 million -14.2%2.7%6.8 $7.85
1/15/20251,410,000 shares $10.90 million +10.2%3.1%7.7 $7.73
12/31/20241,280,000 shares $10.52 million +20.8%2.9%6.2 $8.22
12/15/20241,060,000 shares $8.91 million +2.9%2.5%5.2 $8.41
A letter from Shannon Stansberry (Ad)

Porter Stansberry nearly canceled the entire project. When he first saw the claimed returns - only one down year in nearly two decades and total gains of almost 2,000% - his immediate reaction was disbelief. It took a trusted friend's personal vouching for Emmet Savage and a face-to-face trip to Ireland to change his mind. The full documentary, Investigating Project Prophet, is now live.tc pixel

Watch the full story and see the verified track record for yourself
11/30/20241,030,000 shares $9.59 million +8.8%2.4%5.1 $9.31
11/15/2024947,100 shares $8.97 million -16.2%2.2%4.9 $9.47
10/31/20241,130,000 shares $11.80 million +7.6%2.7%6.9 $10.44
10/15/20241,050,000 shares $10.35 million -8.7%2.5%5.7 $9.86
9/30/20241,150,000 shares $10.25 million -12.2%2.7%7.2 $8.91
9/15/20241,310,000 shares $13.19 million +0.8%3.1%6.9 $10.07
8/31/20241,300,000 shares $10.34 million +5.7%3.1%7.4 $7.95
8/15/20241,230,000 shares $10.06 million -63.1%3.0%6.2 $8.18
7/31/20243,330,000 shares $34.00 million +0.6%8.0%16.2 $10.21
7/15/20243,310,000 shares $29.76 million +11.1%8.5%18.9 $8.99
6/30/20242,980,000 shares $22.53 million +3.1%7.6%17.7 $7.56
6/15/20242,890,000 shares $21.18 million +0.7%7.4%19.6 $7.33
5/31/20242,870,000 shares $21.09 million +6.3%7.4%14.5 $7.35
5/15/20242,700,000 shares $20.25 million -2.2%6.9%14.4 $7.50
4/30/20242,760,000 shares $20.42 million +7.0%7.0%15.6 $7.40
4/15/20242,580,000 shares $19.48 million +5.3%6.5%14.2 $7.55
3/31/20242,450,000 shares $19.23 million +9.4%6.2%13.6 $7.85
3/15/20242,240,000 shares $16.13 million +4.7%7.3%12.3 $7.20
2/29/20242,140,000 shares $19.41 million -15.4%6.9%14.3 $9.07
2/15/20242,530,000 shares $22.01 million +2.0%8.2%16.8 $8.70
1/31/20242,480,000 shares $19.10 million -5.7%8.2%10.9 $7.70
1/15/20242,630,000 shares $22.01 million -1.9%8.6%11.7 $8.37
12/31/20232,680,000 shares $23.74 million +10.3%8.8%12.4 $8.86
12/15/20232,430,000 shares $21.87 million -4.3%7.9%11.7 $9.00
11/30/20232,540,000 shares $20.37 million -3.1%8.3%14.4 $8.02
11/15/20232,620,000 shares $21.20 million +2.0%8.6%16.7 $8.09
10/31/20232,570,000 shares $20.97 million -4.1%8.7%19.3 $8.16
10/15/20232,680,000 shares $22.70 million No Change9.1%47.9 $8.47
9/30/20232,680,000 shares $24.04 million +0.8%9.1%51.4 $8.97
9/15/20232,660,000 shares $25.03 million -0.8%9.0%51.7 $9.41
8/31/20232,680,000 shares $27.82 million -2.9%9.1%37.2 $10.38
8/15/20232,760,000 shares $28.15 million -1.4%9.3%37.7 $10.20
7/31/20232,800,000 shares $33.32 million +0.4%9.7%37.6 $11.90
7/15/20232,790,000 shares $34.07 million -0.4%9.6%34.2 $12.21
6/30/20232,800,000 shares $34.58 million +2.2%9.7%32.8 $12.35
6/15/20232,740,000 shares $34.55 million +24.6%9.5%29.5 $12.61
5/31/20232,200,000 shares $24.90 million +35.0%7.6%21.2 $11.32
5/15/20231,630,000 shares $17.49 million -3.0%6.2%15.1 $10.73
4/30/20231,680,000 shares $15.19 million +2.4%6.4%15.2 $9.04
4/15/20231,640,000 shares $14.27 million +5.1%6.2%14.3 $8.70
3/31/20231,560,000 shares $14.48 million +24.8%6.0%13.1 $9.28
3/15/20231,250,000 shares $12.73 million +30.2%4.8%10.8 $10.18
2/28/2023960,000 shares $9.59 million +22.3%4.8%11.7 $9.99
2/15/2023785,000 shares $8.75 million +27.0%3.9%7.9 $11.15
1/31/2023618,100 shares $6.43 million +41.3%3.1%5.7 $10.41
1/15/2023437,500 shares $4.99 million -36.4%2.2%4.6 $11.40
12/30/2022688,300 shares $7.23 million +38.7%3.9%7.2 $10.50
12/15/2022496,400 shares $5.93 million -53.2%2.8%5.3 $11.95
11/30/20221,060,000 shares $15.14 million +1.9%6.0%10.1 $14.28
11/15/20221,040,000 shares $14.14 million -14.1%5.8%12.5 $13.60
The REAL Reason Trump is Invading Iran (Ad)

For a moment… Forget about Trump’s ties to Israel. Forget about reports of Iran’s nuclear program. Because my research has led me to believe we’re risking World War 3 with Iran for a completely different reason.tc pixel

Click here to find out what it is.
10/31/20221,210,000 shares $14.99 million -4.7%6.8%16.6 $12.39
10/15/20221,270,000 shares $17.22 million -3.8%7.1%17.6 $13.56
9/30/20221,320,000 shares $23.92 million +4.8%7.4%19.5 $18.12
9/15/20221,260,000 shares $18.11 million +3.3%7.1%13.5 $14.37
8/31/20221,220,000 shares $16.30 million -7.6%6.8%11.4 $13.36
8/15/20221,320,000 shares $24.88 million -1.5%7.4%12 $18.85
7/31/20221,340,000 shares $19.11 million -0.7%7.5%12.6 $14.26
7/15/20221,350,000 shares $19.39 million +10.7%7.6%12.5 $14.36
6/30/20221,220,000 shares $17.29 million +27.7%6.9%11.2 $14.17
6/15/2022955,600 shares $13.11 million +17.8%5.4%9.8 $13.72
5/31/2022810,900 shares $14.17 million +15.4%4.5%16.4 $17.47
5/15/2022703,000 shares $11.63 million +9.4%3.9%16.9 $16.54
4/30/2022642,500 shares $10.90 million +23.6%3.6%17 $16.96
4/15/2022519,900 shares $9.28 million +56.1%2.9%16.5 $17.85
3/31/2022333,000 shares $7.33 million +73.3%1.8%11.5 $22.00
3/15/2022192,200 shares $4.14 million +53.9%1.1%5 $21.53
2/28/2022124,900 shares $2.24 million -0.9%0.7%2.2 $17.90
2/15/2022126,000 shares $2.64 million -2.0%0.7%1.9 $20.99
1/31/2022128,500 shares $2.35 million +26.9%0.7%1.5 $18.25
1/15/2022101,300 shares $1.66 million +0.8%0.6%0.7 $16.40
12/31/2021100,500 shares $1.71 million No Change0.6%0.6 $16.98

AURA Short Interest - Frequently Asked Questions

Short interest is the volume of Aura Biosciences shares that have been sold short but have not yet been covered or closed out. As of July 31st, traders have sold 6,358,049 shares of AURA short. 6.27% of Aura Biosciences' shares are currently sold short. Learn More on Aura Biosciences' current short interest.

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. AURA shares currently have a short interest ratio of 18.5. Learn More on Aura Biosciences's short interest ratio.

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. 6.27% of Aura Biosciences' floating shares are currently sold short.

Aura Biosciences saw a increase in short interest in July. As of July 31st, there was short interest totaling 6,358,049 shares, an increase of 13.4% from the previous total of 5,608,945 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.

6.27% of Aura Biosciences' shares are currently sold short. Here is how the short interest of companies in the industry of "biotechnology" compare to Aura Biosciences: IDEAYA Biosciences, Inc. (12.08%), uniQure N.V. (16.15%), Celldex Therapeutics, Inc. (10.25%), Veracyte, Inc. (8.67%), NewAmsterdam Pharma Company N.V. (9.76%), Iovance Biotherapeutics, Inc. (23.94%), Alumis Inc. (6.82%), GRAIL, Inc. (17.09%), Immunome, Inc. (17.11%), Zai Lab Limited Unsponsored ADR (6.04%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.50 billion), Invesco QQQ ($50.36 billion), iShares Russell 2000 ETF ($21.20 billion), Western Digital Corporation ($13.40 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($11.46 billion), iShares 20+ Year Treasury Bond ETF ($7.84 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($7.51 billion), iShares Semiconductor ETF ($6.37 billion), and Financial Select Sector SPDR Fund ($6.34 billion). View all of the most shorted stocks.

Short selling AURA is an investing strategy that aims to generate trading profit from Aura Biosciences as its price is falling. AURA shares are trading up $0.03 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.

A short squeeze for Aura Biosciences 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 AURA, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including AURA, twice per month. The most recent reporting period available is July, 31 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like AURA:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


Related Companies
Short Interest Tools

Short interest data for NASDAQ:AURA is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/11/2026. FINRA publishes updated short interest twice a month.
From Our Partners
ALERT: Drop these 5 stocks before the market opens tomorrow!
The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings researc...
Weiss Ratings | Sponsoredtc pixel
Louis Navellier: My #1 AI stock for 2026 (name & ticker inside)
Louis Navellier's Stock Grader system helped him flag Nvidia before its 82,000% run and has identified the top...
InvestorPlace | Sponsoredtc pixel
Ready to give options a try? Your first trade (Ticker included) -INSIDE
Tired of trying tactic after tactic when it comes to options trades... only to be met with market noise and st...
Base Camp Trading | Sponsoredtc pixel
Trump Takes Emergency Action - Plus Elon Musk's New Venture
Elon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Tru...
Altimetry | Sponsoredtc pixel
They didn't warn anyone in 1971. This time someone is warning you.
On August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...
Reagan Gold Group | Sponsoredtc pixel
Iran War Shock: What I Was Told In That Private Meeting
You’re Being LIED To About The Iran War Forget EVERYTHING you’ve heard about the Iran war. Especially th...
Banyan Hill Publishing | Sponsoredtc pixel
My top 3 AI picks for the next decade
Alexander Green bought Apple in 1996, recommended Nvidia at a split-adjusted 66 cents in 2004, and picked up A...
The Oxford Club | Sponsoredtc pixel
Buy this stock today
Marc Chaikin, founder of Chaikin Analytics, is sharing a strategy he calls 'Sell This, Buy That' - a way to mo...
Chaikin Analytics | Sponsoredtc pixel