89BIO (ETNB) Short Interest Ratio & Short Volume $9.19 +0.16 (+1.77%) Closing price 04:00 PM EasternExtended Trading$9.22 +0.04 (+0.38%) As of 04:27 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 ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock 89BIO Short Interest Data89BIO (ETNB) has a short interest of 15.61 million shares. This marks a -1.14% decrease in short interest from the previous month. The short interest ratio (days to cover) is 9.0, indicating that it would take 9.0 days of the average trading volume of 2.05 million shares to cover all short positions.Current Short Interest15,610,000 sharesPrevious Short Interest15,790,000 sharesChange Vs. Previous Month-1.14%Dollar Volume Sold Short$144.08 millionShort Interest Ratio9.0 Days to CoverLast Record DateAugust 15, 2025Outstanding Shares148,310,000 sharesPercentage of Shares Shorted10.53%Today's Trading Volume1,231,516 sharesAverage Trading Volume2,047,997 sharesToday's Volume Vs. Average60% Short Selling 89BIO? Sign up to receive the latest short interest report for 89BIO 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 ChartETNB Short Interest Over TimeETNB Days to Cover Over TimeETNB Percentage of Float Shorted Over Time 89BIO Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/15/202515,610,000 shares $144.08 million -1.1%N/A9 $9.23 7/31/202515,790,000 shares $150.01 million +2.1%10.9%8.4 $9.50 7/15/202515,460,000 shares $162.48 million -2.3%N/A8.3 $10.51 6/30/202515,820,000 shares $155.35 million +13.1%11.1%7.9 $9.82 6/15/202513,990,000 shares $145.64 million +0.4%9.8%6.8 $10.41 5/31/202513,930,000 shares $138.60 million -10.0%13.5%6.8 $9.95 5/15/202515,480,000 shares $118.27 million -10.6%15.0%7.7 $7.64 4/30/202517,310,000 shares $138.83 million +1.6%N/A9.4 $8.02 4/15/202517,030,000 shares $103.03 million +11.8%16.5%6.6 $6.05 3/31/202515,230,000 shares $110.72 million +38.3%14.8%6 $7.27 Get the Latest News and Ratings for ETNB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for 89BIO and its competitors with MarketBeat's FREE daily newsletter. 3/15/202511,010,000 shares $93.25 million +14.1%10.7%4.7 $8.47 2/28/20259,650,000 shares $89.07 million +5.7%9.4%4.5 $9.23 2/15/20259,130,000 shares $96.50 million +9.5%8.9%4.6 $10.57 1/31/20258,340,000 shares $80.06 million -0.1%N/A4.2 $9.60 1/15/20258,350,000 shares $52.35 million +7.2%N/A5.8 $6.27 12/31/20247,790,000 shares $60.92 million +12.3%N/A8.3 $7.82 12/15/20246,940,000 shares $53.37 million +18.0%N/A7.4 $7.69 11/30/20245,880,000 shares $52.86 million +6.5%N/A7.7 $8.99 11/15/20245,520,000 shares $43.77 million +2.6%N/A7.9 $7.93 10/31/20245,380,000 shares $41.86 million No ChangeN/A9.3 $7.78 10/15/20245,380,000 shares $43.15 million -16.6%N/A9.7 $8.02 9/30/20246,450,000 shares $47.73 million -7.1%N/A10.5 $7.40 9/15/20246,940,000 shares $58.85 million +1.5%N/A9.5 $8.48 8/31/20246,840,000 shares $64.98 million No ChangeN/A8.1 $9.50 8/15/20246,840,000 shares $55.88 million +5.2%N/A7.2 $8.17 7/31/20246,500,000 shares $59.54 million +5.5%N/A6.6 $9.16 7/15/20246,160,000 shares $55.44 million -4.1%N/A6.2 $9.00 6/30/20246,420,000 shares $51.42 million -28.8%N/A6.7 $8.01 6/15/20249,020,000 shares $79.11 million -14.7%N/A10 $8.77 5/31/202410,580,000 shares $83.58 million +4.6%N/A11.4 $7.90 5/15/202410,120,000 shares $93.10 million -5.9%N/A9.6 $9.20 4/30/202410,750,000 shares $91.48 million -4.1%N/A9.4 $8.51 4/15/202411,210,000 shares $106.38 million -2.9%N/A8.9 $9.49 3/31/202411,550,000 shares $134.44 million +4.0%N/A8.8 $11.64 3/15/202411,110,000 shares $150.21 million +2.3%N/A8.2 $13.52 2/29/202410,860,000 shares $124.56 million +2.7%N/A7.6 $11.47 2/15/202410,580,000 shares $103.58 million +9.9%N/A7.8 $9.79 1/31/20249,630,000 shares $95.34 million +7.2%N/A7.1 $9.90 1/15/20248,980,000 shares $99.59 million +5.9%N/A6.7 $11.09 12/31/20238,480,000 shares $94.72 million +24.5%N/A4.9 $11.17Did you spot this in the Oval Office last week? (Ad)When Tim Cook stood in the Oval Office last week, all eyes were on the "unique 24K gold gift" he presented to President Trump. But many viewers missed an even more important moment in that 30-second clip. One that unmistakably singled out what Futurist Eric Fry calls "possibly the best AI investment anyone could make right now." Eric believes this little-known partner to Apple could go crazy over the next 12-24 months, potentially leaving well-known AI stocks like Nvidia, Microsoft and Google in the dust.Click to get full details on the company 12/15/20236,810,000 shares $72.19 million +12.0%N/A3.9 $10.60 11/30/20236,080,000 shares $48.88 million +0.7%N/A3.6 $8.04 11/15/20236,040,000 shares $45.96 million +11.2%N/A3.9 $7.61 10/31/20235,430,000 shares $40.18 million -19.1%N/A3.7 $7.40 10/15/20236,710,000 shares $51.13 million +6.0%N/A4.7 $7.62 9/30/20236,330,000 shares $97.74 million +7.5%N/A5.6 $15.44 9/15/20235,890,000 shares $102.25 million -6.4%N/A5.7 $17.36 8/31/20236,290,000 shares $107.81 million -28.4%N/A5.3 $17.14 8/15/20238,780,000 shares $147.07 million +9.5%N/A6.9 $16.75 7/31/20238,020,000 shares $127.04 million -11.2%N/A6 $15.84 7/15/20239,030,000 shares $164.80 million -5.0%N/A6.7 $18.25 6/30/20239,500,000 shares $180.03 million +36.5%N/A6.6 $18.95 6/15/20236,960,000 shares $144.00 million -2.3%N/A4 $20.69 5/31/20237,120,000 shares $129.80 million -1.4%N/A3.2 $18.23 5/15/20237,220,000 shares $129.02 million -4.4%N/A3.3 $17.87 4/30/20237,550,000 shares $120.65 million -1.2%N/A3.4 $15.98 4/15/20237,640,000 shares $118.57 million -5.1%N/A3.5 $15.52 3/31/20238,050,000 shares $122.60 million +44.0%N/A3.9 $15.23 3/15/20235,590,000 shares $71.50 million +8.5%N/A2.9 $12.79 2/28/20235,150,000 shares $70.14 million +10.8%N/A4.8 $13.62 2/15/20234,650,000 shares $60.45 million No ChangeN/A4.5 $13.00 1/31/20234,650,000 shares $54.31 million +8.6%N/A4.8 $11.68 1/15/20234,280,000 shares $44.94 million -3.4%N/A4.8 $10.50 12/30/20224,430,000 shares $56.39 million -7.1%N/A4.9 $12.73 12/15/20224,770,000 shares $49.37 million +30.3%N/A5.3 $10.35 11/30/20223,660,000 shares $29.28 million No ChangeN/A2.7 $8.00 11/15/20223,660,000 shares $35.83 million -0.3%N/A2.8 $9.79 10/31/20223,670,000 shares $35.05 million -3.2%N/A2.8 $9.55 10/15/20223,790,000 shares $29.07 million +28.0%N/A3 $7.67 9/30/20222,960,000 shares $17.14 million -6.0%N/A2.6 $5.79 9/15/20223,150,000 shares $18.43 million +55.2%N/A2.7 $5.85 8/31/20222,030,000 shares $9.05 million +1.0%N/A4.2 $4.46 8/15/20222,010,000 shares $9.53 million +34.9%N/A4.1 $4.74 7/31/20221,490,000 shares $5.29 million -2.6%N/A3.3 $3.55 7/15/20221,530,000 shares $5.31 million +75.0%N/A3.7 $3.47 6/30/2022874,500 shares $2.82 million -15.9%N/A2.2 $3.22 6/15/20221,040,000 shares $3.28 million -7.1%7.3%3.8 $3.15 5/31/20221,120,000 shares $3.37 million +16.1%7.8%4.6 $3.01 5/15/2022964,800 shares $2.55 million +20.1%6.8%5 $2.64 4/30/2022803,200 shares $1.74 million +17.1%5.6%4.1 $2.17 4/15/2022686,200 shares $2.02 million +5.5%4.8%3.4 $2.95 3/31/2022650,300 shares $2.45 million -9.5%4.6%3.6 $3.77 3/15/2022718,900 shares $2.57 million +10.9%5.1%4.1 $3.58 2/28/2022648,300 shares $3.00 million -6.4%4.6%3.8 $4.63 2/15/2022692,700 shares $3.50 million -1.8%4.9%4.1 $5.05 1/31/2022705,500 shares $4.16 million +14.7%5.2%5 $5.89 1/15/2022615,100 shares $7.46 million +5.4%4.5%7.5 $12.12 12/31/2021583,500 shares $7.63 million +93.3%4.3%7.5 $13.07 12/15/2021301,800 shares $3.68 million -37.2%2.2%3.9 $12.19 11/30/2021480,800 shares $6.35 million +1.0%3.5%6.3 $13.21Did you spot this in the Oval Office last week? (Ad)When Tim Cook stood in the Oval Office last week, all eyes were on the "unique 24K gold gift" he presented to President Trump. But many viewers missed an even more important moment in that 30-second clip. One that unmistakably singled out what Futurist Eric Fry calls "possibly the best AI investment anyone could make right now." Eric believes this little-known partner to Apple could go crazy over the next 12-24 months, potentially leaving well-known AI stocks like Nvidia, Microsoft and Google in the dust.Click to get full details on the company 11/15/2021475,900 shares $8.11 million -40.1%3.5%6.4 $17.05 10/29/2021793,900 shares $13.97 million -5.8%5.9%10.1 $17.60 10/15/2021843,000 shares $15.23 million -10.0%6.3%10 $18.07 9/30/2021936,100 shares $18.34 million -0.3%7.0%10.7 $19.59 9/15/2021938,900 shares $18.84 million -5.7%7.0%9.5 $20.07 8/31/2021995,600 shares $18.43 million -8.7%7.5%10.1 $18.51 8/13/20211,090,000 shares $20.12 million -9.2%8.2%9.7 $18.46 7/30/20211,200,000 shares $18.79 million +2.6%9.0%11 $15.66 7/15/20211,170,000 shares $19.54 million +13.6%6.9%11.5 $16.70 6/30/20211,030,000 shares $19.26 million -27.5%6.0%9.7 $18.70 6/15/20211,420,000 shares $28.05 million -0.7%8.3%14.9 $19.75 5/28/20211,430,000 shares $27.03 million +8.3%8.4%14.8 $18.90 5/14/20211,320,000 shares $26.89 million -1.5%7.7%13.7 $20.37 4/30/20211,340,000 shares $36.15 million -0.7%7.9%14 $26.98 4/15/20211,350,000 shares $32.10 million +20.5%N/A0 $23.78 3/31/20211,120,000 shares $26.57 million No Change6.6%7.6 $23.72 3/15/20211,120,000 shares $28.07 million -3.5%6.6%6.4 $25.06 2/26/20211,160,000 shares $28.85 million -0.9%6.9%6.4 $24.87 2/12/20211,170,000 shares $28.03 million No Change6.9%6.5 $23.96 1/29/20211,170,000 shares $23.66 million +17.4%7.0%6.1 $20.22 1/15/2021996,900 shares $21.49 million +41.2%6.0%5.2 $21.56 12/31/2020705,900 shares $18.06 million +30.9%4.2%3.8 $25.58 12/15/2020539,100 shares $14.26 million -4.0%3.2%3.2 $26.45 11/30/2020561,800 shares $15.33 million +82.3%3.4%2.8 $27.28 11/15/2020308,100 shares $8.28 million +14.3%1.8%1.5 $26.88 10/30/2020269,600 shares $6.50 million +41.8%1.7%1.5 $24.12 10/15/2020190,200 shares $4.55 million -61.9%1.2%1.2 $23.90 9/30/2020498,500 shares $12.79 million +175.9%3.1%3.4 $25.66 9/15/2020180,700 shares $5.50 million +29.8%1.2%1.1 $30.44 ETNB Short Interest - Frequently Asked Questions What is 89BIO's current short interest? Short interest is the volume of 89BIO shares that have been sold short but have not yet been covered or closed out. As of July 31st, traders have sold 15,790,000 shares of ETNB short. 10.93% of 89BIO's shares are currently sold short. Learn More on 89BIO's current short interest. What is a good short interest ratio for 89BIO? 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. ETNB shares currently have a short interest ratio of 8.0. Learn More on 89BIO's short interest ratio. Which institutional investors are shorting 89BIO? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of 89BIO: Nomura Holdings Inc., LMR Partners LLP, Group One Trading LLC, Jane Street Group LLC, Walleye Capital LLC, Walleye Trading LLC, and Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for 89BIO? 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. 10.93% of 89BIO's floating shares are currently sold short. Is 89BIO's short interest increasing or decreasing? 89BIO saw a increase in short interest during the month of July. As of July 31st, there was short interest totaling 15,790,000 shares, an increase of 2.1% from the previous total of 15,460,000 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. How does 89BIO's short interest compare to its competitors? 10.93% of 89BIO's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to 89BIO: Nuvalent, Inc. (11.99%), Merus N.V. (6.44%), CRISPR Therapeutics AG (26.94%), TG Therapeutics, Inc. (16.53%), Cytokinetics, Incorporated (13.26%), Krystal Biotech, Inc. (13.61%), ACADIA Pharmaceuticals Inc. (8.89%), ADMA Biologics Inc (5.96%), Vaxcyte, Inc. (10.57%), PTC Therapeutics, Inc. (8.02%), 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 89BIO stock? Short selling ETNB is an investing strategy that aims to generate trading profit from 89BIO as its price is falling. ETNB shares are trading down $0.39 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 89BIO? A short squeeze for 89BIO 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 ETNB, which in turn drives the price of the stock up even further. How often is 89BIO'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 ETNB, twice per month. The most recent reporting period available is July, 31 2025. More Short Interest Resources from MarketBeat Related Companies Nuvalent Short Interest Merus Short Interest CRISPR Therapeutics Short Interest TG Therapeutics Short Interest Cytokinetics Short Interest Krystal Biotech Short Interest ACADIA Pharmaceuticals Short Interest ADMA Biologics Short Interest Vaxcyte Short Interest PTC Therapeutics Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:ETNB) was last updated on 9/2/2025 by MarketBeat.com Staff From Our PartnersMan Who Called Nvidia at $1.10 Says Buy This Now...In 2004, one man called Nvidia before just about anyone knew it existed. Now, this same guy says a new comp...The Oxford Club | SponsoredThe day and month stocks are most likely to crash nextGood News for Stocks 50-year Wall Street veteran, Marc Chaikin is stepping forward to share why history giv...Chaikin Analytics | SponsoredTrump’s Plan May Undo 1933’s Biggest Financial InjusticeTrump's Reset Can Give Birth To America's Greatest Era Yet A 90-Year cycle may end soon, creating real weal...American Hartford Gold | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | Sponsored[No Brainer Gold Play]: “Show me a better investment.”A Historic Gold Announcement Is About to Rock Wall Street? For months, sharp-eyed analysts have watched the...Golden Portfolio | Sponsored2013 Bitcoin miner reveals his trading system (free)While everyone else is gambling on meme coins or chasing the next "100x moonshot," our members are systematica...Crypto Swap Profits | SponsoredWhat Steve Bannon revealed about Trump’s gold playA Trump advisor just said 3 words that could reset the dollar. It’s a gold move nobody saw coming—and your ...Reagan Gold Group | SponsoredGENIUS Act: Cancel Your Money?They said digital dollars were off the table. But with the GENIUS Act now federal law, private corporations—no...Priority Gold | 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 89BIO Please log in to your account or sign up in order to add this asset to your watchlist. Share 89BIO 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 ETNB Stock Alerts