Soleno Therapeutics (SLNO) Short Interest Ratio & Short Volume $54.74 -1.84 (-3.25%) Closing price 09/19/2025 04:00 PM EasternExtended Trading$54.74 0.00 (0.00%) As of 09/19/2025 07:36 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 InterestSustainabilityTrendsBuy This Stock Soleno Therapeutics Short Interest DataSoleno Therapeutics (SLNO) has a short interest of 7.58 million shares, representing 16.49% of the float (the number of shares available for trading by the public). This marks a 20.13% increase in short interest from the previous month. The short interest ratio (days to cover) is 5.1, indicating that it would take 5.1 days of the average trading volume of 1.91 million shares to cover all short positions.Current Short Interest7,580,000 sharesPrevious Short Interest6,310,000 sharesChange Vs. Previous Month+20.13%Dollar Volume Sold Short$512.94 millionShort Interest Ratio5.1 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares53,150,000 sharesFloat Size45,970,000 sharesShort Percent of Float16.49%Today's Trading Volume4,272,014 sharesAverage Trading Volume1,911,134 sharesToday's Volume Vs. Average224% Short Selling Soleno Therapeutics? Sign up to receive the latest short interest report for Soleno Therapeutics and its competitors with MarketBeat's FREE newsletter. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSLNO Short Interest Over TimeSLNO Days to Cover Over TimeSLNO Percentage of Float Shorted Over Time Soleno Therapeutics Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/31/20257,580,000 shares $512.94 million +20.1%16.5%5.1 $67.67 8/15/20256,310,000 shares $451.99 million +4.5%13.7%4.8 $71.63 7/31/20256,040,000 shares $522.28 million +2.9%13.6%5.4 $86.47 7/15/20255,870,000 shares $490.67 million +9.7%13.4%5.6 $83.59 6/30/20255,350,000 shares $448.22 million +31.8%12.8%5 $83.78 6/15/20254,060,000 shares $321.35 million +1.8%9.7%3 $79.15 5/31/20253,990,000 shares $292.23 million -3.9%9.6%3 $73.24 5/15/20254,150,000 shares $311.54 million -0.2%10.0%3.2 $75.07 4/30/20254,160,000 shares $311.42 million -17.0%10.4%3.3 $74.86 4/15/20255,010,000 shares $351.95 million +7.5%12.7%4.2 $70.25 Get the Latest News and Ratings for SLNO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Soleno Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 3/31/20254,660,000 shares $332.96 million -6.6%13.0%4.3 $71.45 3/15/20254,990,000 shares $246.21 million +3.7%14.9%9 $49.34 2/28/20254,810,000 shares $234.82 million +6.0%14.4%9.2 $48.82 2/15/20254,540,000 shares $223.23 million +4.4%14.4%8.2 $49.17 1/31/20254,350,000 shares $218.50 million -8.0%13.4%7.6 $50.23 1/15/20254,730,000 shares $229.74 million +3.1%14.5%8 $48.57 12/31/20244,590,000 shares $206.32 million +3.6%14.3%6.6 $44.95 12/15/20244,430,000 shares $206.93 million -2.9%13.8%6.5 $46.71 11/30/20244,560,000 shares $240.36 million -3.8%14.2%6.9 $52.71 11/15/20244,740,000 shares $245.53 million -23.2%14.8%7.2 $51.80 10/31/20246,170,000 shares $339.72 million +8.1%20.1%9.8 $55.06 10/15/20245,710,000 shares $309.20 million +15.1%20.6%9.5 $54.15 9/30/20244,960,000 shares $250.43 million +6.4%19.1%9.1 $50.49 9/15/20244,660,000 shares $246.23 million +3.8%18.0%8.9 $52.84 8/31/20244,490,000 shares $219.79 million +13.1%18.2%8.6 $48.95 8/15/20243,970,000 shares $200.33 million +0.3%16.9%8.4 $50.46 7/31/20243,960,000 shares $190.99 million -0.8%17.5%8.7 $48.23 7/15/20243,990,000 shares $200.34 million +13.7%18.7%7.7 $50.21 6/30/20243,510,000 shares $143.21 million +4.5%15.6%6.9 $40.80 6/15/20243,360,000 shares $142.50 million -1.2%15.0%7.7 $42.41 5/31/20243,400,000 shares $143.07 million +6.9%16.0%8.3 $42.08 5/15/20243,180,000 shares $143.77 million -6.7%15.0%7.4 $45.21 4/30/20243,410,000 shares $152.29 million +10.0%16.9%8.6 $44.66 4/15/20243,100,000 shares $119.41 million +12.3%15.7%10.2 $38.52 3/31/20242,760,000 shares $118.13 million +20.0%14.6%9 $42.80 3/15/20242,300,000 shares $99.96 million +36.9%12.2%7.8 $43.46 2/29/20241,680,000 shares $81.18 million +11.3%9.5%4.9 $48.32 2/15/20241,510,000 shares $70.17 million -0.7%8.5%4.8 $46.47 1/31/20241,520,000 shares $70.45 million +8.6%8.4%4.7 $46.35 1/15/20241,400,000 shares $58.51 million +4.5%7.8%4.4 $41.79 12/31/20231,340,000 shares $53.94 million +77.0%7.3%4 $40.25 12/15/2023756,900 shares $28.68 million +10.8%4.1%0.6 $37.89 11/30/2023683,300 shares $20.34 million +17.9%3.9%0.6 $29.76 11/15/2023579,500 shares $13.62 million -15.0%3.3%0.5 $23.51 10/31/2023682,000 shares $16.27 million +4.8%4.2%0.6 $23.85 10/15/2023650,500 shares $15.77 million -58.6%4.0%0.6 $24.25 9/30/20231,570,000 shares $46.33 million +683.0%15.7%1.5 $29.51 9/15/2023200,500 shares $982.45 thousand +151.9%2.5%0.3 $4.90 8/31/202379,600 shares $389.24 thousand -3.2%1.0%1.4 $4.89 8/15/202382,200 shares $371.54 thousand +13.7%1.1%1.3 $4.52 7/31/202372,300 shares $368.73 thousand -12.8%1.2%0.7 $5.10 7/15/202382,900 shares $446.00 thousand +14.0%1.3%0.8 $5.38 6/30/202372,700 shares $311.88 thousand -19.1%1.2%0.7 $4.29 6/15/202389,900 shares $449.50 thousand -9.1%1.4%0.8 $5.00 5/31/202398,900 shares $521.20 thousand +39.3%1.6%1 $5.27 5/15/202371,000 shares $298.56 thousand +14.7%1.3%0.8 $4.21 4/30/202361,900 shares $208.60 thousand -42.8%1.4%1.3 $3.37 4/15/2023108,200 shares $349.49 thousand +27.6%1.9%1.7 $3.23 3/31/202384,800 shares $181.47 thousand -7.3%1.5%1.1 $2.14 3/15/202391,500 shares $187.58 thousand -16.1%1.6%0.3 $2.05 2/28/2023109,000 shares $221.27 thousand -1.0%1.9%0.1 $2.03 2/15/2023110,100 shares $214.70 thousand -40.3%2.5%0.1 $1.95 1/31/2023184,300 shares $536.31 thousand -30.6%4.1%0.1 $2.91 1/15/2023265,400 shares $631.65 thousand -55.1%6.0%0.1 $2.38 12/30/2022590,900 shares $1.17 million +498.1%13.3%0.3 $1.98 12/15/202298,800 shares $88.13 thousand +14.8%2.2%0.1 $0.89 11/30/202286,100 shares $92.99 thousand +65.3%1.9%1.3 $1.08 11/15/202252,100 shares $56.79 thousand +10.2%1.2%0.5 $1.09 10/31/202247,300 shares $46.83 thousand +65.4%1.1%0.5 $0.99 10/15/202228,600 shares $38.04 thousand -53.0%0.7%0.3 $1.33 9/30/202260,900 shares $101.70 thousand +13.8%1.4%0.5 $1.67 9/15/202253,500 shares $115.03 thousand +21.6%1.3%0.4 $2.15 8/31/202244,000 shares $96.80 thousand -94.5%1.0%0.3 $2.20 8/15/2022799,600 shares $153.92 thousand -31.7%1.3%0.4 $0.19 7/31/20221,170,000 shares $200.07 thousand +65.0%N/A0.6 $0.17 7/15/2022709,300 shares $130.94 thousand -14.3%N/A0.4 $0.18 6/30/2022827,600 shares $153.11 thousand +140.2%N/A0.6 $0.19 6/15/2022344,500 shares $56.50 thousand +12.3%N/A0.2 $0.16 5/31/2022306,800 shares $49.49 thousand +37.2%N/A0.3 $0.16 5/15/2022223,700 shares $37.76 thousand -21.1%N/A0.3 $0.17 4/30/2022283,400 shares $56.68 thousand -25.5%0.4%0.4 $0.20 4/15/2022380,300 shares $82.75 thousand -36.8%0.5%0.6 $0.22 3/31/2022601,400 shares $134.11 thousand +19.7%0.8%1.1 $0.22 3/15/2022502,600 shares $136.20 thousand -9.4%0.9%2.1 $0.27 2/28/2022554,700 shares $179.33 thousand -2.6%1.0%2.4 $0.32 2/15/2022569,600 shares $214.74 thousand +11.0%1.1%2.4 $0.38 1/31/2022513,200 shares $182.19 thousand +0.1%1.0%2 $0.36 1/15/2022512,800 shares $215.38 thousand -28.9%0.9%1.9 $0.42 12/31/2021721,000 shares $295.61 thousand +18.3%1.3%2.8 $0.41 12/15/2021609,500 shares $329.74 thousand -3.7%1.1%2.6 $0.54 11/30/2021633,200 shares $413.23 thousand -55.1%1.2%2.4 $0.65 11/15/20211,410,000 shares $1.09 million -4.7%2.6%4.5 $0.78 10/29/20211,480,000 shares $1.10 million +16.5%2.7%4.5 $0.74 10/15/20211,270,000 shares $1.06 million -2.3%2.3%3.4 $0.83 9/30/20211,300,000 shares $1.20 million -11.0%2.4%3.2 $0.92 9/15/20211,460,000 shares $1.32 million -15.1%2.7%2.3 $0.91 8/31/20211,720,000 shares $1.57 million -10.9%3.2%2.3 $0.91 8/13/20211,930,000 shares $1.69 million -2.0%3.6%0.7 $0.88 7/30/20211,970,000 shares $1.79 million -14.7%3.6%0.7 $0.91 7/15/20212,310,000 shares $2.24 million -4.9%4.4%0.8 $0.97 6/30/20212,430,000 shares $2.77 million -46.1%4.6%0.8 $1.14 6/15/20214,510,000 shares $5.01 million +18.7%8.6%1.5 $1.11 5/28/20213,800,000 shares $3.91 million +36.2%7.3%1.1 $1.03 5/14/20212,790,000 shares $2.70 million -0.4%N/A1.4 $0.97 4/30/20212,800,000 shares $3.44 million +17.2%N/A1.4 $1.23 4/15/20212,390,000 shares $2.92 million -2.5%N/A1.2 $1.22 3/31/20212,450,000 shares $3.11 million +41.6%N/A1.4 $1.27 3/15/20211,730,000 shares $2.66 million +125.5%N/A1.2 $1.54 2/26/2021767,300 shares $1.94 million -0.9%N/A1.1 $2.53 2/12/2021774,300 shares $2.18 million -23.3%N/A2.5 $2.82 1/29/20211,010,000 shares $2.00 million +10.3%N/A3.5 $1.98 1/15/2021916,100 shares $2.00 million -7.9%N/A3.4 $2.18 12/31/2020994,300 shares $1.93 million +0.3%N/A3.6 $1.94 12/15/2020991,100 shares $1.84 million -1.9%N/A2.4 $1.86 11/30/20201,010,000 shares $1.94 million -2.9%N/A2 $1.92 11/15/20201,040,000 shares $2.14 million No ChangeN/A1.9 $2.06 10/30/20201,040,000 shares $1.67 million -21.8%N/A1.7 $1.61 10/15/20201,330,000 shares $2.65 million -17.4%N/A2.1 $1.99 9/30/20201,610,000 shares $4.04 million +15.8%N/A2.4 $2.51 SLNO Short Interest - Frequently Asked Questions What is Soleno Therapeutics' current short interest? Short interest is the volume of Soleno Therapeutics shares that have been sold short but have not yet been covered or closed out. As of August 31st, traders have sold 7,580,000 shares of SLNO short. 16.49% of Soleno Therapeutics' shares are currently sold short. Learn More on Soleno Therapeutics' current short interest. What is a good short interest ratio for Soleno Therapeutics? 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. SLNO shares currently have a short interest ratio of 5.0. Learn More on Soleno Therapeutics's short interest ratio. Which institutional investors are shorting Soleno Therapeutics? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Soleno Therapeutics: Hudson Bay Capital Management LP, Hudson Bay Capital Management LP, Group One Trading LLC, Boothbay Fund Management LLC, Jane Street Group LLC, OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC , Sio Capital Management LLC, and Jefferies Financial Group Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Soleno Therapeutics? 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. 16.49% of Soleno Therapeutics' floating shares are currently sold short. Is Soleno Therapeutics' short interest increasing or decreasing? Soleno Therapeutics saw a increase in short interest during the month of August. As of August 31st, there was short interest totaling 7,580,000 shares, an increase of 20.1% from the previous total of 6,310,000 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. What is Soleno Therapeutics' float size? Soleno Therapeutics currently has issued a total of 53,150,000 shares. Some of Soleno Therapeutics' 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. Soleno Therapeutics currently has a public float of 45,970,000 shares. How does Soleno Therapeutics' short interest compare to its competitors? 16.49% of Soleno Therapeutics' shares are currently sold short. Here is how the short interest of companies compare to Soleno Therapeutics: Femasys Inc. (2.85%), Immunovant, Inc. (22.06%), Penumbra, Inc. (4.79%), Stevanato Group S.p.A. (4.17%), iRhythm Technologies (8.75%), Bausch + Lomb Corporation (8.86%), Glaukos Corporation (6.27%), TransMedics Group, Inc. (26.09%), Envista Holdings Corporation (5.86%), LivaNova PLC (3.64%), 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 Soleno Therapeutics stock? Short selling SLNO is an investing strategy that aims to generate trading profit from Soleno Therapeutics as its price is falling. SLNO shares are trading down $1.84 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 Soleno Therapeutics? A short squeeze for Soleno Therapeutics 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 SLNO, which in turn drives the price of the stock up even further. How often is Soleno Therapeutics' 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 SLNO, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies FEMY Short Interest Data IMVT Short Interest Data PEN Short Interest Data STVN Short Interest Data IRTC Short Interest Data BLCO Short Interest Data GKOS Short Interest Data TMDX Short Interest Data NVST Short Interest Data LIVN 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:SLNO) was last updated on 9/21/2025 by MarketBeat.com Staff From Our PartnersHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. 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