SELLAS Life Sciences Group (SLS) Short Interest Ratio & Short Volume $1.90 -0.02 (-1.04%) Closing price 07/17/2025 04:00 PM EasternExtended Trading$1.92 +0.02 (+1.05%) As of 06:06 AM 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 EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock SELLAS Life Sciences Group Short Interest DataSELLAS Life Sciences Group (SLS) has a short interest of 24.36 million shares, representing 24.76% of the float (the number of shares available for trading by the public). This marks a 28.89% increase in short interest from the previous month. The short interest ratio (days to cover) is 8.8, indicating that it would take 8.8 days of the average trading volume of 1.82 million shares to cover all short positions.Current Short Interest24,360,000 sharesPrevious Short Interest18,900,000 sharesChange Vs. Previous Month+28.89%Dollar Volume Sold Short$53.35 millionShort Interest Ratio8.8 Days to CoverLast Record DateJune 30, 2025Outstanding Shares99,780,000 sharesShort Percent of Float24.76%Today's Trading Volume1,792,182 sharesAverage Trading Volume1,817,738 sharesToday's Volume Vs. Average99% Short Selling SELLAS Life Sciences Group? Sign up to receive the latest short interest report for SELLAS Life Sciences Group and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSLS Short Interest Over TimeSLS Days to Cover Over TimeSLS Percentage of Float Shorted Over Time SELLAS Life Sciences Group Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/202524,360,000 shares $53.35 million +28.9%24.8%8.8 $2.19 6/15/202518,900,000 shares $31.37 million +54.7%19.2%8.6 $1.66 5/31/202512,220,000 shares $20.65 million +39.5%17.6%6.4 $1.69 5/15/20258,760,000 shares $14.02 million +13.6%12.6%5.1 $1.60 4/30/20257,710,000 shares $11.95 million -0.8%N/A5.4 $1.55 4/15/20257,770,000 shares $10.02 million -5.0%11.2%3.2 $1.29 3/31/20258,180,000 shares $8.83 million +4.2%11.8%3.3 $1.08 3/15/20257,850,000 shares $8.95 million +0.5%11.3%3.2 $1.14 2/28/20257,810,000 shares $9.22 million -9.7%11.2%2.9 $1.18 2/15/20258,650,000 shares $11.42 million -11.8%12.4%3.2 $1.32 Get the Latest News and Ratings for SLS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for SELLAS Life Sciences Group and its competitors with MarketBeat's FREE daily newsletter. 1/31/20259,810,000 shares $15.89 million +9.0%N/A3.7 $1.62 1/15/20259,000,000 shares $8.73 million +12.9%N/A4.4 $0.97 12/31/20247,970,000 shares $8.29 million +6.8%N/A7 $1.04 12/15/20247,460,000 shares $6.51 million -17.6%N/A7.6 $0.87 11/30/20249,050,000 shares $10.23 million +3.2%N/A11.2 $1.13 11/15/20248,770,000 shares $11.58 million +1.9%N/A14.3 $1.32 10/31/20248,610,000 shares $10.16 million +41.6%N/A16.1 $1.18 10/15/20246,080,000 shares $7.30 million -25.7%N/A10.2 $1.20 9/30/20248,180,000 shares $10.23 million +0.3%N/A13 $1.25 9/15/20248,160,000 shares $10.77 million -0.7%N/A12.4 $1.32 8/31/20248,220,000 shares $10.60 million +6.5%N/A9.2 $1.29 8/15/20247,720,000 shares $9.80 million -27.5%N/A8.4 $1.27 7/31/202410,650,000 shares $12.35 million +9.6%N/A11 $1.16 7/15/20249,720,000 shares $10.59 million +9.7%N/A8.3 $1.09 6/30/20248,860,000 shares $10.54 million +17.4%N/A7.2 $1.19 6/15/20247,550,000 shares $11.33 million -1.3%N/A5.2 $1.50 5/31/20247,650,000 shares $10.79 million +5.5%N/A5.3 $1.41 5/15/20247,250,000 shares $10.66 million +3.7%N/A4.7 $1.47 4/30/20246,990,000 shares $8.67 million +23.3%N/A4.6 $1.24 4/15/20245,670,000 shares $7.54 million +7.6%N/A4 $1.33 3/31/20245,270,000 shares $5.32 million +1.7%N/A3.6 $1.01 3/15/20245,180,000 shares $5.70 million +14.9%N/A3.7 $1.10 2/29/20244,510,000 shares $4.56 million +15.9%N/A4.2 $1.01 2/15/20243,890,000 shares $2.74 million +24.7%N/A3.7 $0.70 1/31/20243,120,000 shares $2.00 million -19.6%N/A3.1 $0.64 1/15/20243,880,000 shares $2.07 million -18.0%N/A4.3 $0.53 12/31/20234,730,000 shares $5.01 million +1.5%N/A4.9 $1.06 12/15/20234,660,000 shares $5.36 million +1.1%N/A6.3 $1.15 11/30/20234,610,000 shares $4.79 million +0.7%N/A7.3 $1.04 11/15/20234,580,000 shares $4.44 million +50.2%N/A8.7 $0.97Elon’s Secret Social Security Bombshell (Ad)To All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social Security? What we just discovered in Washington will stun even the most seasoned insiders.A major government announcement coming as soon as July 23. 10/31/20233,050,000 shares $2.96 million +49.5%N/A6.6 $0.97 10/15/20232,040,000 shares $2.65 million +87.2%N/A6.5 $1.30 9/30/20231,090,000 shares $1.79 million +6.9%N/A7.7 $1.64 9/15/20231,020,000 shares $1.64 million -9.7%N/A8.1 $1.61 8/31/20231,130,000 shares $1.66 million No ChangeN/A8.9 $1.47 8/15/20231,130,000 shares $1.68 million -4.2%N/A8.7 $1.49 7/31/20231,180,000 shares $1.94 million +2.6%N/A8.2 $1.64 7/15/20231,150,000 shares $1.97 million -0.9%N/A7.4 $1.71 6/30/20231,160,000 shares $1.82 million +3.6%N/A6.8 $1.57 6/15/20231,120,000 shares $1.86 million -5.9%N/A5.4 $1.66 5/31/20231,190,000 shares $2.04 million -4.8%N/A4.8 $1.72 5/15/20231,250,000 shares $2.05 million +4.2%N/A2.7 $1.64 4/30/20231,200,000 shares $1.69 million +1.7%N/A2.6 $1.41 4/15/20231,180,000 shares $1.89 million +7.3%N/A2.6 $1.60 3/31/20231,100,000 shares $1.57 million -9.8%N/A2.4 $1.43 3/15/20231,220,000 shares $1.68 million -5.4%N/A3 $1.38 2/28/20231,290,000 shares $2.18 million +7.5%N/A3.5 $1.69 2/15/20231,200,000 shares $3.79 million +2.6%N/A4.1 $3.16 1/31/20231,170,000 shares $3.88 million -2.5%N/A4.5 $3.32 1/15/20231,200,000 shares $3.41 million -3.2%N/A3.6 $2.84 12/30/20221,240,000 shares $2.93 million +0.8%N/A3.3 $2.36 12/15/20221,230,000 shares $2.85 million +1.7%N/A3.4 $2.32 11/30/20221,210,000 shares $2.89 million +5.2%N/A3.3 $2.39 11/15/20221,150,000 shares $2.58 million +15.4%N/A3.3 $2.24 10/31/2022996,800 shares $4.67 million +21.3%N/A3.8 $4.68 10/15/2022822,000 shares $1.57 million -0.9%N/A4.5 $1.91 9/30/2022829,600 shares $1.68 million -0.7%N/A8.3 $2.02 9/15/2022835,100 shares $2.51 million +0.1%N/A7.8 $3.00 8/31/2022834,400 shares $2.55 million -6.1%N/A7.1 $3.06 8/15/2022888,700 shares $2.88 million +5.9%N/A6.6 $3.24 7/31/2022838,900 shares $2.15 million -2.3%N/A5.4 $2.56 7/15/2022858,900 shares $2.16 million -4.1%N/A5.3 $2.52 6/30/2022895,600 shares $2.00 million -0.3%N/A4.7 $2.23 6/15/2022897,800 shares $2.22 million +6.0%N/A3 $2.47 5/31/2022847,000 shares $2.58 million -10.1%N/A3 $3.05 5/15/2022942,500 shares $2.51 million +8.6%N/A3.4 $2.66 4/30/2022867,800 shares $2.36 million -5.2%N/A3.5 $2.72 4/15/2022915,500 shares $3.22 million -8.5%N/A3.5 $3.52 3/31/20221,000,000 shares $6.68 million No ChangeN/A4 $6.68 3/15/20221,000,000 shares $5.38 million +1.2%N/A7.3 $5.38 2/28/2022988,000 shares $6.03 million -1.1%N/A7 $6.10 2/15/2022999,200 shares $6.48 million +1.3%N/A7.1 $6.49 1/31/2022986,700 shares $5.27 million +15.4%N/A5.8 $5.34 1/15/2022854,700 shares $4.73 million +10.0%N/A5.6 $5.53 12/31/2021776,800 shares $4.30 million -2.4%N/A5.1 $5.53 12/15/2021796,100 shares $5.10 million +9.6%N/A5.1 $6.40 11/30/2021726,200 shares $4.89 million +11.8%N/A4.4 $6.74 11/15/2021649,600 shares $4.85 million -3.5%N/A3.7 $7.47 10/29/2021672,900 shares $5.85 million -22.1%N/A3.7 $8.69 10/15/2021863,200 shares $7.62 million +4.1%N/A4.3 $8.83Elon’s Secret Social Security Bombshell (Ad)To All Americans Born Before April 16th, 1963: Did Trump Just Give The Green Light To Radically RE-DO Social Security? What we just discovered in Washington will stun even the most seasoned insiders.A major government announcement coming as soon as July 23. 9/30/2021829,200 shares $7.60 million +7.2%N/A3.6 $9.16 9/15/2021773,700 shares $7.78 million -14.2%N/A1.7 $10.05 8/31/2021901,200 shares $8.37 million -23.6%N/A1.8 $9.29 8/13/20211,180,000 shares $11.88 million No ChangeN/A2 $10.07 7/30/20211,180,000 shares $10.10 million +4.4%N/A2 $8.56 7/15/20211,130,000 shares $9.75 million +28.9%N/A1.9 $8.63 6/30/2021876,900 shares $9.73 million +27.3%N/A1.5 $11.10 6/15/2021688,900 shares $7.89 million -10.9%N/A1.4 $11.45 5/28/2021773,400 shares $9.25 million -15.2%N/A1.5 $11.96 5/14/2021911,600 shares $0.00 +1.2%6.1%1.7 $0.00 4/30/2021901,100 shares $7.22 million -4.2%6.1%1.4 $8.01 4/15/2021940,100 shares $7.76 million +20.2%6.3%0.5 $8.25 3/31/2021782,300 shares $6.27 million -8.2%5.3%0.4 $8.02 3/15/2021852,100 shares $8.74 million +5.9%6.1%0.4 $10.26 2/26/2021805,000 shares $6.74 million -16.2%5.8%0.1 $8.37 2/12/2021960,400 shares $8.85 million +5.2%6.9%0.2 $9.21 1/29/2021912,700 shares $5.02 million +43.4%8.1%0.2 $5.50 1/15/2021636,300 shares $3.85 million -15.4%5.6%0.2 $6.05 12/31/2020752,000 shares $4.39 million -40.3%6.7%0.2 $5.84 12/15/20201,260,000 shares $8.43 million +127.5%11.3%0.3 $6.69 11/30/2020553,900 shares $2.06 million +51.1%6.2%1.3 $3.72 11/15/2020366,600 shares $964.16 thousand -11.1%4.1%2.3 $2.63 10/30/2020412,200 shares $1.08 million -0.1%4.6%2.9 $2.63 10/15/2020412,500 shares $1.10 million -1.6%4.6%2.1 $2.66 SLS Short Interest - Frequently Asked Questions What is SELLAS Life Sciences Group's current short interest? Short interest is the volume of SELLAS Life Sciences Group shares that have been sold short but have not yet been covered or closed out. As of June 30th, traders have sold 24,360,000 shares of SLS short. 24.76% of SELLAS Life Sciences Group's shares are currently sold short. Learn More on SELLAS Life Sciences Group's current short interest. What is a good short interest ratio for SELLAS Life Sciences Group? 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. SLS shares currently have a short interest ratio of 9.0. Learn More on SELLAS Life Sciences Group's short interest ratio. What is a good short interest percentage for SELLAS Life Sciences Group? 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. 24.76% of SELLAS Life Sciences Group's floating shares are currently sold short. Is SELLAS Life Sciences Group's short interest increasing or decreasing? SELLAS Life Sciences Group saw a increase in short interest during the month of June. As of June 30th, there was short interest totaling 24,360,000 shares, an increase of 28.9% from the previous total of 18,900,000 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 SELLAS Life Sciences Group's short interest compare to its competitors? 24.76% of SELLAS Life Sciences Group's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to SELLAS Life Sciences Group: CorMedix Inc (15.02%), Vir Biotechnology, Inc. (6.45%), KalVista Pharmaceuticals, Inc. (19.10%), Amylyx Pharmaceuticals, Inc. (10.14%), ArriVent BioPharma, Inc. (27.03%), Immatics N.V. (3.46%), Immunome, Inc. (16.38%), Nuvation Bio Inc. (29.08%), MeiraGTx Holdings PLC (5.02%), Gyre Therapeutics, Inc. (11.07%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short SELLAS Life Sciences Group stock? Short selling SLS is an investing strategy that aims to generate trading profit from SELLAS Life Sciences Group as its price is falling. SLS shares are trading down $0.02 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 SELLAS Life Sciences Group? A short squeeze for SELLAS Life Sciences Group 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 SLS, which in turn drives the price of the stock up even further. How often is SELLAS Life Sciences Group'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 SLS, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies CRMD Short Interest Data VIR Short Interest Data KALV Short Interest Data AMLX Short Interest Data AVBP Short Interest Data IMTX Short Interest Data IMNM Short Interest Data NUVB Short Interest Data MGTX Short Interest Data GYRE Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:SLS) was last updated on 7/18/2025 by MarketBeat.com Staff From Our PartnersElon’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 | 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 | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...Stansberry Research | SponsoredThink you missed gold’s boom? Think againIf you've been watching gold's historic run and wondering if it's too late… I've got good news. Because the...Investors Alley | SponsoredAI Meltdown Imminent: Dump These Stocks Now!If you have any money in the markets, especially in AI stocks… Please click here to see Elon Musk’s new inv...Paradigm Press | SponsoredSpecial gold investment soars 2,300% ... 5,090% ... 9,850%In my 54 years as an investor, I’ve seen my share of gold bull markets. But nothing comes close to the rall...Weiss Ratings | SponsoredA grave, grave error.I thought what happened 25 years ago was a once- in-a-lifetime event… but how wrong I was. Because here we...Porter & Company | SponsoredMiss This Window And You Miss EverythingThere’s a moment in every crypto cycle when everything just clicks — and that moment is now. This is the ph...Crypto Swap Profits | 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 SELLAS Life Sciences Group, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share SELLAS Life Sciences Group 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 SLS Stock Alerts