Rapid Micro Biosystems (RPID) Short Interest Ratio & Short Volume $3.40 +0.05 (+1.49%) Closing price 08/8/2025 04:00 PM EasternExtended Trading$3.38 -0.02 (-0.74%) As of 08/8/2025 07:50 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 Rapid Micro Biosystems Short Interest DataRapid Micro Biosystems (RPID) has a short interest of 409,500 shares, representing 2.08% of the float (the number of shares available for trading by the public). This marks a -20.58% decrease in short interest from the previous month. The short interest ratio (days to cover) is 3.7, indicating that it would take 3.7 days of the average trading volume of 101,466 shares to cover all short positions.Current Short Interest409,500 sharesPrevious Short Interest515,600 sharesChange Vs. Previous Month-20.58%Dollar Volume Sold Short$1.33 millionShort Interest Ratio3.7 Days to CoverLast Record DateJuly 15, 2025Outstanding Shares43,830,000 sharesFloat Size19,690,000 sharesShort Percent of Float2.08%Today's Trading Volume34,535 sharesAverage Trading Volume101,466 sharesToday's Volume Vs. Average34% Short Selling Rapid Micro Biosystems? Sign up to receive the latest short interest report for Rapid Micro Biosystems and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartRPID Short Interest Over TimeRPID Days to Cover Over TimeRPID Percentage of Float Shorted Over Time Rapid Micro Biosystems Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/15/2025409,500 shares $1.33 million -20.6%2.1%3.7 $3.26 6/30/2025515,600 shares $1.78 million -25.1%2.6%4.4 $3.45 6/15/2025688,000 shares $2.44 million -6.7%3.5%5.1 $3.55 5/31/2025737,500 shares $2.49 million -25.1%3.7%4.3 $3.37 5/15/2025985,200 shares $3.01 million -30.1%5.0%2.6 $3.06 4/30/20251,410,000 shares $3.27 million -2.1%6.8%3.2 $2.32 4/15/20251,440,000 shares $3.28 million -10.6%7.0%2.9 $2.28 3/31/20251,610,000 shares $4.25 million +36.4%7.9%3.1 $2.64 3/15/20251,180,000 shares $2.90 million +190.3%5.8%2.4 $2.46 2/28/2025406,500 shares $1.24 million +202.2%2.0%0.9 $3.05 Get the Latest News and Ratings for RPID and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Rapid Micro Biosystems and its competitors with MarketBeat's FREE daily newsletter. 2/15/2025134,500 shares $468.06 thousand +1.6%0.7%0.5 $3.48 1/31/2025132,400 shares $237.00 thousand +16.6%0.6%0.7 $1.79 1/15/2025113,600 shares $143.70 thousand +160.6%0.6%1 $1.27 12/31/202443,600 shares $39.24 thousand -25.1%0.2%0.6 $0.90 12/15/202458,200 shares $58.22 thousand +87.1%0.3%0.9 $1.00 11/30/202431,100 shares $32.50 thousand -29.5%0.2%0.4 $1.05 11/15/202444,100 shares $45.86 thousand -37.4%0.2%0.6 $1.04 10/31/202470,400 shares $76.03 thousand +300.0%0.3%1 $1.08 10/15/202417,600 shares $15.49 thousand -55.9%0.1%0.3 $0.88 9/30/202439,900 shares $35.51 thousand -43.2%0.2%0.7 $0.89 9/15/202470,300 shares $58.70 thousand +55.2%0.3%1.2 $0.84 8/31/202445,300 shares $38.50 thousand -43.1%0.2%0.9 $0.85 8/15/202479,600 shares $66.12 thousand +592.2%0.4%1.7 $0.83 7/31/202411,500 shares $7.60 thousand -45.2%0.1%0.3 $0.66 7/15/202421,000 shares $13.69 thousand -40.9%0.1%0.7 $0.65 6/30/202435,500 shares $23.43 thousand +32.0%0.2%1 $0.66 6/15/202426,900 shares $20.71 thousand +38.0%0.1%0.8 $0.77 5/31/202419,500 shares $15.60 thousand -49.7%0.1%0.5 $0.80 5/15/202438,800 shares $31.42 thousand -27.1%0.2%0.9 $0.81 4/30/202453,200 shares $52.35 thousand -12.6%0.2%1.2 $0.98 4/15/202460,900 shares $59.32 thousand +5.2%0.3%1.3 $0.97 3/31/202457,900 shares $56.16 thousand -27.9%0.3%0.8 $0.97 3/15/202480,300 shares $78.69 thousand -11.0%0.4%0.4 $0.98 2/29/202490,200 shares $99.22 thousand -13.0%0.5%0.4 $1.10 2/15/2024103,700 shares $98.53 thousand -21.4%0.6%0.5 $0.95 1/31/2024131,900 shares $125.99 thousand -21.7%0.7%0.6 $0.96 1/15/2024168,500 shares $165.13 thousand +342.3%0.9%0.9 $0.98 12/31/202338,100 shares $28.19 thousand +152.3%0.2%0.2 $0.74 12/15/202315,100 shares $15.10 thousand +65.9%0.1%0.5 $1.00 11/30/20239,100 shares $10.65 thousand +33.8%0.1%0.4 $1.17National 'Stock Market Reset' Coming September 30 (New WH Order) (Ad)Crash Coming Sept 30? Analysts Warn of New Crisis A new problem on the U.S. power grid is putting millions of Americans at risk of blackouts and could lead to a crisis "many times worse than 2008" if not fixed.Click here to see what this could soon mean for your portfolio. 11/15/20236,800 shares $6.94 thousand -16.1%0.0%0.3 $1.02 10/31/20238,100 shares $8.34 thousand -35.2%0.0%0.3 $1.03 10/15/202312,500 shares $12.63 thousand -35.2%0.1%0.4 $1.01 9/30/202319,300 shares $20.84 thousand -26.1%0.1%0.7 $1.08 9/15/202326,100 shares $30.80 thousand +6.1%0.1%0.8 $1.18 8/31/202324,600 shares $23.74 thousand -4.3%0.1%0.7 $0.97 8/15/202325,700 shares $25.70 thousand -12.9%0.1%0.6 $1.00 7/31/202329,500 shares $28.95 thousand +16.6%0.2%0.6 $0.98 7/15/202325,300 shares $24.55 thousand +9.1%0.2%0.5 $0.97 6/30/202323,200 shares $23.20 thousand -40.1%0.2%0.4 $1.00 6/15/202338,700 shares $41.02 thousand +12.5%0.2%0.7 $1.06 5/31/202334,400 shares $36.12 thousand -4.7%0.2%0.6 $1.05 5/15/202336,100 shares $33.57 thousand -1.1%0.2%0.6 $0.93 4/30/202336,500 shares $36.32 thousand -15.1%0.2%0.7 $1.00 4/15/202343,000 shares $43.43 thousand -26.8%0.2%0.8 $1.01 3/31/202358,700 shares $76.90 thousand -18.4%0.3%0.8 $1.31 3/15/202371,900 shares $87.00 thousand +240.8%0.4%0.8 $1.21 2/28/202321,100 shares $22.58 thousand +8.2%0.1%0.2 $1.07 2/15/202319,500 shares $25.55 thousand -14.1%0.1%0.2 $1.31 1/31/202322,700 shares $34.05 thousand -15.6%0.2%0.2 $1.50 1/15/202326,900 shares $36.32 thousand -71.1%0.2%0.3 $1.35 12/30/202293,100 shares $105.20 thousand +3.8%0.6%1.2 $1.13 12/15/202289,700 shares $151.59 thousand -51.8%0.6%1.5 $1.69 11/30/2022186,000 shares $381.30 thousand -14.7%1.3%3.7 $2.05 11/15/2022218,000 shares $564.62 thousand -4.2%1.5%7.6 $2.59 10/31/2022227,500 shares $664.30 thousand -12.3%1.5%7.2 $2.92 10/15/2022259,300 shares $824.57 thousand -16.5%1.8%7.1 $3.18 9/30/2022310,400 shares $1.00 million +6.6%2.2%6.6 $3.23 9/15/2022291,200 shares $1.08 million +6.7%2.0%1.4 $3.71 8/31/2022273,000 shares $909.09 thousand +10.2%1.9%1.1 $3.33 8/15/2022247,700 shares $948.69 thousand -29.0%1.7%1 $3.83 7/31/2022348,800 shares $1.59 million -24.1%2.4%1.2 $4.57 7/15/2022459,400 shares $1.96 million +26.3%3.2%1.4 $4.26 6/30/2022363,700 shares $1.56 million -54.1%2.5%1.1 $4.30 6/15/2022792,600 shares $2.48 million -2.5%5.4%4.1 $3.13 5/31/2022812,500 shares $4.07 million -0.1%5.5%3.8 $5.01 5/15/2022813,300 shares $3.25 million -5.7%5.5%3.8 $4.00 4/30/2022862,300 shares $5.03 million +7.5%5.4%4.6 $5.83 4/15/2022802,400 shares $4.85 million -11.2%5.0%4.4 $6.04 3/31/2022903,400 shares $6.13 million +83.4%6.1%4.3 $6.79 3/15/2022492,700 shares $3.73 million -1.4%3.5%2.3 $7.57 2/28/2022499,700 shares $3.49 million -13.0%3.6%2.9 $6.99 2/15/2022574,300 shares $4.49 million +18.7%4.1%3.4 $7.82 1/31/2022483,700 shares $3.45 million +4.0%3.5%2.9 $7.13 1/15/2022465,200 shares $3.39 million -2.0%3.4%3.1 $7.28 12/31/2021474,900 shares $5.05 million +52.2%3.4%4 $10.64 12/15/2021312,000 shares $3.37 million -6.3%2.3%2.6 $10.81 11/30/2021332,900 shares $4.10 million +1.9%2.4%2.5 $12.32 11/15/2021326,800 shares $5.38 million -17.1%2.4%2.4 $16.46 10/29/2021394,100 shares $8.04 million -4.3%2.9%2.7 $20.39National 'Stock Market Reset' Coming September 30 (New WH Order) (Ad)Crash Coming Sept 30? Analysts Warn of New Crisis A new problem on the U.S. power grid is putting millions of Americans at risk of blackouts and could lead to a crisis "many times worse than 2008" if not fixed.Click here to see what this could soon mean for your portfolio. 10/15/2021411,700 shares $6.92 million -11.2%3.1%2.5 $16.82 9/30/2021463,600 shares $8.56 million +852.0%3.5%1.8 $18.47 9/15/202148,700 shares $1.02 million +141.1%0.4%0.2 $20.90 8/31/202120,200 shares $381.78 thousand +16.8%0.2%0.1 $18.90 8/13/202117,300 shares $328.01 thousand No Change0.1%0.1 $18.96 RPID Short Interest - Frequently Asked Questions What is Rapid Micro Biosystems' current short interest? Short interest is the volume of Rapid Micro Biosystems shares that have been sold short but have not yet been closed out or covered. As of July 15th, investors have sold 409,500 shares of RPID short. 2.08% of Rapid Micro Biosystems' shares are currently sold short. Learn More on Rapid Micro Biosystems' current short interest. What is a good short interest ratio for Rapid Micro Biosystems? 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. RPID shares currently have a short interest ratio of 4.0. Learn More on Rapid Micro Biosystems's short interest ratio. What is a good short interest percentage for Rapid Micro Biosystems? 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. 2.08% of Rapid Micro Biosystems' floating shares are currently sold short. Is Rapid Micro Biosystems' short interest increasing or decreasing? Rapid Micro Biosystems saw a drop in short interest during the month of July. As of July 15th, there was short interest totaling 409,500 shares, a drop of 20.6% from the previous total of 515,600 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 Rapid Micro Biosystems' float size? Rapid Micro Biosystems currently has issued a total of 43,830,000 shares. Some of Rapid Micro Biosystems' 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. Rapid Micro Biosystems currently has a public float of 19,690,000 shares. How does Rapid Micro Biosystems' short interest compare to its competitors? 2.08% of Rapid Micro Biosystems' shares are currently sold short. Here is how the short interest of companies in the industry of "measuring and control equipment" compare to Rapid Micro Biosystems: Aehr Test Systems (21.99%), Standard BioTools Inc. (3.36%), Cytek Biosciences, Inc. (4.93%), Senseonics Holdings, Inc. (7.39%), Quanterix Corporation (7.25%), Quantum-Si Incorporated (15.51%), Frequency Electronics, Inc. (8.44%), 908 Devices Inc. (8.23%), Kewaunee Scientific Corporation (2.78%), Seer, Inc. (5.50%), 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 Rapid Micro Biosystems stock? Short selling RPID is an investing strategy that aims to generate trading profit from Rapid Micro Biosystems as its price is falling. RPID shares are trading up $0.05 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 Rapid Micro Biosystems? A short squeeze for Rapid Micro Biosystems 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 RPID, which in turn drives the price of the stock up even further. How often is Rapid Micro Biosystems' 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 RPID, twice per month. The most recent reporting period available is July, 15 2025. More Short Interest Resources from MarketBeat Related Companies AEHR Short Squeeze LAB Short Squeeze CTKB Short Squeeze SENS Short Squeeze QTRX Short Squeeze QSI Short Squeeze FEIM Short Squeeze MASS Short Squeeze KEQU Short Squeeze SEER 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:RPID) was last updated on 8/10/2025 by MarketBeat.com Staff From Our PartnersGENIUS Act: Cancel Your Money?A new law called the GENIUS Act could quietly trigger the most radical shift in American finance in decades. B...Priority Gold | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. For the first time in over a century, a sitting Preside...Paradigm Press | SponsoredTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | Sponsored"Death Spiral" Threatening Your SavingsThe "Death Spiral" Threatening Your Savings But this time, it's not just Dalio ringing the alarm bells…Goldco Precious Metals | SponsoredThe End of Elon Musk…?The End of Elon Musk? Don't make him laugh. Jeff Brown has been hearing this same tired story for years, an...Brownstone Research | SponsoredFed Decision Warning: How to Protect Your Wealth Before September 17th On September 17th, the Fed faces an impossible choice—and Wall Street insiders are already preparing for the...American Alternative | SponsoredGreen Light for These StocksGuess Who Washington Will Partner With Next? The U.S. government just made a bold $400 million move... beco...Stansberry Research | SponsoredThe stealth altcoin the financial world is underestimatingThe Single Most Undervalued DeFi Protocol You've Never Heard Of If there's one cryptocurrency you should b...Crypto 101 Media | 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 Rapid Micro Biosystems, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Rapid Micro Biosystems 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 RPID Stock Alerts