Arqit Quantum (ARQQ) Short Interest Ratio & Short Volume $33.71 +3.46 (+11.44%) Closing price 04:00 PM EasternExtended Trading$33.46 -0.25 (-0.74%) As of 07:58 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 ForecastsChartCompetitorsEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Arqit Quantum Short Interest DataArqit Quantum (ARQQ) has a short interest of 700,500 shares, representing 26.74% of the float (the number of shares available for trading by the public). This marks a -15.53% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.9, indicating that it would take 0.9 days of the average trading volume of 250,069 shares to cover all short positions.Current Short Interest700,500 sharesPrevious Short Interest829,300 sharesChange Vs. Previous Month-15.53%Dollar Volume Sold Short$21.02 millionShort Interest Ratio0.9 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares15,230,000 sharesFloat Size2,620,000 sharesShort Percent of Float26.74%Today's Trading Volume642,926 sharesAverage Trading Volume250,069 sharesToday's Volume Vs. Average257% Short Selling Arqit Quantum? Sign up to receive the latest short interest report for Arqit Quantum and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy 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 HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartARQQ Short Interest Over TimeARQQ Days to Cover Over TimeARQQ Percentage of Float Shorted Over Time Arqit Quantum Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/31/2025700,500 shares $21.02 million -15.5%26.7%0.9 $30.00 8/15/2025829,300 shares $27.33 million +14.0%13.4%0.9 $32.95 7/31/2025727,600 shares $24.19 million -2.8%11.7%0.7 $33.24 7/15/2025748,800 shares $28.41 million +54.4%12.1%0.7 $37.94 6/30/2025484,900 shares $17.96 million +71.2%7.8%0.5 $37.03 6/15/2025283,200 shares $6.73 million -41.3%4.6%0.3 $23.78 5/31/2025482,800 shares $10.30 million -19.5%7.8%0.7 $21.34 5/15/2025600,000 shares $9.08 million +7.4%8.9%1 $15.14 4/30/2025558,700 shares $8.66 million +3.7%9.3%1.4 $15.50 4/15/2025539,000 shares $7.97 million +2.1%9.0%1.3 $14.79 Get the Latest News and Ratings for ARQQ and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Arqit Quantum and its competitors with MarketBeat's FREE daily newsletter. 3/31/2025527,800 shares $7.32 million +11.3%8.8%0.9 $13.86 3/15/2025474,100 shares $7.11 million -2.8%7.9%0.6 $15.00 2/28/2025487,800 shares $6.20 million -5.2%8.1%0.6 $12.71 2/15/2025514,600 shares $8.51 million -4.5%8.6%0.5 $16.53 1/31/2025539,000 shares $11.05 million +39.9%8.6%0.6 $20.50 1/15/2025385,300 shares $7.93 million -13.9%6.3%0.4 $20.59 12/31/2024447,400 shares $17.38 million +50.0%8.2%0.6 $38.84 12/15/2024298,200 shares $7.07 million -28.2%5.5%0.5 $23.70 11/30/2024415,100 shares $8.29 million +86.7%10.0%1.1 $19.98 11/15/2024222,300 shares $1.76 million +47.7%5.5%1 $7.92 10/31/2024150,500 shares $814.21 thousand +14.9%3.9%1.4 $5.41 10/15/2024131,000 shares $624.87 thousand +8.1%3.4%1.6 $4.77 9/30/2024121,200 shares $690.84 thousand -92.9%1.8%2.1 $5.70 9/15/20241,700,000 shares $496.40 thousand +18.1%1.9%2 $0.29 8/31/20241,440,000 shares $460.80 thousand +6.7%1.8%1.7 $0.32 8/15/20241,350,000 shares $413.91 thousand -17.7%1.7%1.6 $0.31 7/31/20241,640,000 shares $592.53 thousand -24.1%2.1%1.5 $0.36 7/15/20242,160,000 shares $873.72 thousand -29.9%3.4%1.2 $0.40 6/30/20243,080,000 shares $1.05 million -14.9%4.9%1.8 $0.34 6/15/20243,620,000 shares $1.34 million -4.5%5.7%2.1 $0.37 5/31/20243,790,000 shares $1.48 million -11.9%7.2%2.2 $0.39 5/15/20244,300,000 shares $1.70 million +26.1%8.1%2.3 $0.40 4/30/20243,410,000 shares $1.47 million -9.1%6.8%1.9 $0.43 4/15/20243,750,000 shares $1.93 million -17.4%7.5%3.8 $0.51 3/31/20244,540,000 shares $3.29 million +2.5%9.4%4.6 $0.73 3/15/20244,430,000 shares $3.44 million +56.0%9.1%4.9 $0.78 2/29/20242,840,000 shares $2.03 million +16.9%5.9%3.1 $0.71 2/15/20242,430,000 shares $1.46 million +9.5%5.0%3.5 $0.60 1/31/20242,220,000 shares $1.01 million +6.7%4.6%3 $0.46 1/15/20242,080,000 shares $975.94 thousand +10.1%4.3%2.7 $0.47 12/31/20231,890,000 shares $895.86 thousand -19.2%3.9%2.4 $0.47 12/15/20232,340,000 shares $1.20 million -3.7%4.8%3.1 $0.51 11/30/20232,430,000 shares $1.20 million +120.9%5.1%2.4 $0.49 11/15/20231,100,000 shares $660 thousand +16.0%2.3%1 $0.60 10/31/2023948,400 shares $416.44 thousand +9.9%1.9%1 $0.44 10/15/2023862,900 shares $457.42 thousand -26.3%1.8%0.7 $0.53 9/30/20231,170,000 shares $696.15 thousand -28.7%2.4%0.8 $0.60 9/15/20231,640,000 shares $1.02 million +89.0%6.8%1.1 $0.62 8/31/2023867,700 shares $773.21 thousand -22.5%2.0%0.5 $0.89 8/15/20231,120,000 shares $1.19 million -13.9%2.6%0.6 $1.06 7/31/20231,300,000 shares $1.52 million -9.1%3.0%0.7 $1.17 7/15/20231,430,000 shares $1.80 million -11.2%2.5%0.9 $1.26 6/30/20231,610,000 shares $1.95 million +8.8%4.8%1.1 $1.21 6/15/20231,480,000 shares $2.06 million -14.0%4.4%1 $1.39 5/31/20231,720,000 shares $2.44 million +6.8%5.1%1.1 $1.42 5/15/20231,610,000 shares $1.74 million +75.1%4.8%1.1 $1.08 4/30/2023919,600 shares $1.04 million -11.6%2.7%0.5 $1.13 4/15/20231,040,000 shares $1.29 million -24.6%3.1%0.5 $1.24 3/31/20231,380,000 shares $1.93 million -19.3%4.1%0.6 $1.40 3/15/20231,710,000 shares $1.69 million +33.6%5.1%0.8 $0.99 2/28/20231,280,000 shares $1.59 million -26.4%5.2%0.7 $1.24 2/15/20231,740,000 shares $5.03 million +87.8%7.1%1 $2.89 1/31/2023926,500 shares $1.96 million -0.9%4.9%0.6 $2.12 1/15/2023934,400 shares $2.58 million -0.5%5.1%1.2 $2.76 12/30/2022938,700 shares $3.39 million -47.9%5.1%1.7 $3.61 12/15/20221,800,000 shares $9.13 million -8.2%9.8%3.6 $5.07 11/30/20221,960,000 shares $14.95 million -26.0%10.8%3.2 $7.63 11/15/20222,650,000 shares $20.83 million +252.2%14.6%4.3 $7.86 10/31/2022752,500 shares $3.38 million -11.0%4.2%1.7 $4.49 10/15/2022845,800 shares $3.95 million -12.1%4.7%2.8 $4.67 9/30/2022962,100 shares $5.42 million +20.8%5.3%3.3 $5.63 9/15/2022796,700 shares $6.79 million +69.4%4.4%2.9 $8.52 8/31/2022470,400 shares $2.86 million -7.4%2.6%2 $6.08 8/15/2022508,100 shares $3.31 million -14.4%2.8%3.9 $6.52 7/31/2022593,700 shares $3.24 million +8.5%3.3%3.6 $5.45 7/15/2022547,000 shares $2.99 million -15.9%3.0%2.8 $5.46 6/30/2022650,600 shares $4.11 million -16.7%3.6%2.6 $6.31 6/15/2022780,900 shares $4.32 million -1.8%4.3%3 $5.53 5/31/2022795,400 shares $6.18 million -15.5%4.8%2.2 $7.77 5/15/2022941,100 shares $6.26 million -21.6%5.7%2.4 $6.65 4/30/20221,200,000 shares $9.70 million -7.7%7.4%2.8 $8.08 4/15/20221,300,000 shares $19.58 million -18.8%8.0%2.9 $15.06 3/31/20221,600,000 shares $24.93 million +30.1%9.8%3.8 $15.58 3/15/20221,230,000 shares $20.57 million -29.3%7.6%2.5 $16.72 2/28/20221,740,000 shares $27.75 million +13.0%10.7%3.6 $15.95 2/15/20221,540,000 shares $23.18 million +13.2%9.5%2.8 $15.05 1/31/20221,360,000 shares $21.05 million +30.8%8.4%2.2 $15.48 1/15/20221,040,000 shares $17.89 million -1.9%6.4%1.5 $17.20 12/31/20211,060,000 shares $25.39 million No Change6.5%1.4 $23.95 ARQQ Short Interest - Frequently Asked Questions What is Arqit Quantum's current short interest? Short interest is the volume of Arqit Quantum shares that have been sold short but have not yet been covered or closed out. As of August 31st, traders have sold 700,500 shares of ARQQ short. 26.74% of Arqit Quantum's shares are currently sold short. Learn More on Arqit Quantum's current short interest. What is a good short interest ratio for Arqit Quantum? 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. ARQQ shares currently have a short interest ratio of 1.0. Learn More on Arqit Quantum's short interest ratio. Which institutional investors are shorting Arqit Quantum? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Arqit Quantum: Group One Trading LLC, and Jane Street Group LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Arqit Quantum? 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. 26.74% of Arqit Quantum's floating shares are currently sold short. Is Arqit Quantum's short interest increasing or decreasing? Arqit Quantum saw a drop in short interest in August. As of August 31st, there was short interest totaling 700,500 shares, a drop of 15.5% from the previous total of 829,300 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 Arqit Quantum's float size? Arqit Quantum currently has issued a total of 15,230,000 shares. Some of Arqit Quantum'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. Arqit Quantum currently has a public float of 2,620,000 shares. How does Arqit Quantum's short interest compare to its competitors? 26.74% of Arqit Quantum's shares are currently sold short. Here is how the short interest of companies in the industry of "computer software" compare to Arqit Quantum: PagerDuty (11.69%), N-able, Inc. (3.93%), Integral Ad Science Holding Corp. (7.81%), MeridianLink, Inc. (3.73%), Opera Limited Sponsored ADR (18.57%), Tuya Inc. Sponsored ADR (0.71%), Couchbase, Inc. (7.93%), Rapid7, Inc. (5.86%), Yalla Group Limited Sponsored ADR (0.98%), Jamf Holding Corp. (9.23%), 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 ($73.23 billion), Invesco QQQ ($29.52 billion), iShares Russell 2000 ETF ($20.82 billion), iShares 20+ Year Treasury Bond ETF ($10.76 billion), Palo Alto Networks, Inc. ($9.37 billion), Strategy Inc ($7.58 billion), Invesco S&P 500 Equal Weight ETF ($6.78 billion), SPDR S&P Biotech ETF ($6.72 billion), AppLovin Corporation ($6.37 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($6.29 billion). View all of the most shorted stocks. What does it mean to sell short Arqit Quantum stock? Short selling ARQQ is an investing strategy that aims to generate trading profit from Arqit Quantum as its price is falling. ARQQ shares are trading up $2.20 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 Arqit Quantum? A short squeeze for Arqit Quantum 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 ARQQ, which in turn drives the price of the stock up even further. How often is Arqit Quantum'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 ARQQ, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies PagerDuty Short Squeeze N-able Short Squeeze Integral Ad Science Short Squeeze MeridianLink Short Squeeze Opera Short Squeeze Tuya Short Squeeze Couchbase Short Squeeze Rapid7 Short Squeeze Yalla Group Short Squeeze Jamf Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:ARQQ) was last updated on 9/12/2025 by MarketBeat.com Staff From Our PartnersCritical AI announcement set to ignite AI 2.0I just put together an urgent new presentation that you need to see right away. In short: I believe we are...Timothy Sykes | SponsoredForget NVDA. Put $1,000 into this stock nowA massive money shift is underway in the AI market. And it's opening up an extraordinary opportunity in a NEW ...Chaikin Analytics | SponsoredDo NOT Day Trade (Do THIS instead)Forget day trading (especially in markets like these). Trade OVERNIGHT instead! I've uncovered a shockin...Monument Traders Alliance | SponsoredWall Street laughed at Trump’s “Smart Dollar.” Now they’re all in."THIS is the Biggest Economic Story of 2025" While most Americans are focused on tariffs and inflation, the...Stansberry Research | 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 | SponsoredAlex’s “Next Magnificent Seven” stocksThe original “Magnificent Seven” turned $7K into $1.18 million. Now, Alex Green has identified AI’s Next Ma...The Oxford Club | SponsoredElon’s Secret Social Security BombshellTo All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social S...Banyan Hill Publishing | SponsoredAlert: Prepare for Trump's Dollar OverhaulPresident Trump just signed a game-changing law… That could soon upgrade the U.S. dollar in your checking a...Brownstone Research | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Arqit Quantum Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Arqit Quantum With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Free ARQQ Stock Alerts