Spero Therapeutics (SPRO) Short Interest Ratio & Short Volume $1.03 -0.04 (-3.72%) (As of 12/17/2024 ET) Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Spero Therapeutics Short Interest DataSpero Therapeutics (SPRO) has a short interest of 493,800 shares. This marks a -9.69% decrease in short interest from the previous month. The short interest ratio (days to cover) is 2.0, indicating that it would take 2.0 days of the average trading volume of 218,794 shares to cover all short positions.Current Short Interest493,800 sharesPrevious Short Interest546,800 sharesChange Vs. Previous Month-9.69%Dollar Volume Sold Short$562,932.00Short Interest Ratio2.0 Days to CoverLast Record DateNovember 30, 2024Outstanding Shares54,518,000 sharesPercentage of Shares Shorted0.91%Today's Trading Volume184,964 sharesAverage Trading Volume218,794 sharesToday's Volume Vs. Average85% Short Selling Spero Therapeutics? Sign up to receive the latest short interest report for Spero Therapeutics and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSPRO Short Interest Over TimeSPRO Days to Cover Over TimeSPRO Percentage of Float Shorted Over Time Ad Porter & CompanyForbes rich list released… #1 to be assassinated?Elon Musk has just exposed the “energy grift” of America in a recent tweet to his platform, X. And people are slowly starting to wake up to the Deep State’s lies.To get the full details on the fake “energy crisis” of America, watch this now Spero 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 11/30/2024493,800 shares $562,932.00 -9.7%N/A2 $1.14 11/15/2024546,800 shares $645,224.00 -12.5%N/A2.3 $1.18 10/31/2024625,200 shares $768,996.00 +61.5%N/A3 $1.23 10/15/2024387,100 shares $464,520.00 +0.7%N/A3.2 $1.20 9/30/2024384,300 shares $514,962.00 -0.2%N/A3 $1.34 9/15/2024385,200 shares $527,724.00 -5.8%N/A3.4 $1.37 Get the Latest News and Ratings for SPRO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Spero Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 8/31/2024409,100 shares $560,467.00 +8.6%N/A3.1 $1.37 8/15/2024376,700 shares $455,807.00 +5.8%N/A2.9 $1.21 7/31/2024355,900 shares $501,819.00 -8.8%N/A2.6 $1.41 7/15/2024390,300 shares $563,983.50 -7.1%N/A2.7 $1.45 6/30/2024420,000 shares $546,000.00 -3.3%N/A2.5 $1.30 6/15/2024434,200 shares $590,512.00 -10.3%N/A2.3 $1.36 5/31/2024483,900 shares $687,138.00 -2.1%N/A1.7 $1.42 5/15/2024494,200 shares $800,604.00 +5.6%N/A1.6 $1.62 4/30/2024468,100 shares $664,702.00 -8.8%N/A1.5 $1.42 4/15/2024513,200 shares $785,196.00 -21.5%N/A1.6 $1.53 3/31/2024653,800 shares $1.12 million +6.5%N/A2.1 $1.72 3/15/2024613,900 shares $1.10 million +8.9%N/A2 $1.79 2/29/2024564,000 shares $930,600.00 -8.9%N/A2.8 $1.65 2/15/2024619,000 shares $940,880.00 -12.5%N/A3.2 $1.52 1/31/2024707,100 shares $1.07 million +4.0%N/A3.8 $1.52 1/15/2024680,200 shares $986,290.00 -13.8%N/A4 $1.45 12/31/2023789,000 shares $1.16 million -19.2%N/A4.5 $1.47 12/15/2023976,500 shares $1.26 million -9.6%N/A6 $1.29 11/30/20231,080,000 shares $1.23 million -4.4%N/A6.2 $1.14 11/15/20231,130,000 shares $1.29 million -10.3%N/A4.7 $1.14 10/31/20231,260,000 shares $1.36 million -3.1%N/A4.8 $1.08 10/15/20231,300,000 shares $1.47 million -3.7%N/A4.1 $1.13 9/30/20231,350,000 shares $1.63 million -5.6%N/A4.2 $1.21 9/15/20231,430,000 shares $1.83 million +25.4%N/A4.3 $1.28 8/31/20231,140,000 shares $1.71 million No ChangeN/A3.2 $1.50 8/15/20231,140,000 shares $1.53 million -2.6%N/A3.8 $1.35 7/31/20231,170,000 shares $1.91 million No ChangeN/A3.9 $1.63 7/15/20231,170,000 shares $1.77 million -4.9%N/A4.2 $1.51 6/30/20231,230,000 shares $1.78 million +40.4%N/A4 $1.45 6/15/2023876,300 shares $1.38 million -0.6%N/A1.8 $1.57 5/31/2023881,800 shares $1.53 million -9.5%N/A1.7 $1.74 5/15/2023974,400 shares $1.82 million -32.8%N/A1.7 $1.87 4/30/20231,450,000 shares $2.57 million -21.6%N/A2.5 $1.77 4/15/20231,850,000 shares $3.18 million +17.1%N/A3.3 $1.72Trump’s Secret Manhattan Project (Ad)On January 20, a whole new Manhattan Project is set to begin: Trump’s Manhattan Project. Folks, I just spent six months investigating this...and what I found is shocking.Click here and I’ll show you exactly how to position your money 3/31/20231,580,000 shares $2.29 million +67.6%N/A2.8 $1.45 3/15/2023942,700 shares $1.39 million +142.0%N/A2.1 $1.47 2/28/2023389,500 shares $576,460.00 +35.5%N/A0.9 $1.48 2/15/2023287,400 shares $514,446.00 -38.6%N/A0.7 $1.79 1/31/2023468,200 shares $866,170.00 -29.9%N/A0.8 $1.85 1/15/2023667,900 shares $1.34 million -21.4%N/A1.1 $2.00 12/30/2022849,400 shares $1.47 million -14.6%N/A1.1 $1.73 12/15/2022994,200 shares $1.69 million -23.5%N/A0.4 $1.70 11/30/20221,300,000 shares $2.52 million -13.9%N/A0.2 $1.94 11/15/20221,510,000 shares $2.84 million +22.8%5.5%0.2 $1.88 10/31/20221,230,000 shares $2.41 million -15.8%4.5%0.2 $1.96 10/15/20221,460,000 shares $2.89 million -32.4%5.4%0.2 $1.98 9/30/20222,160,000 shares $4.32 million +177.9%8.0%0.3 $2.00 9/15/2022777,200 shares $753,884.00 +182.0%2.9%0.1 $0.97 8/31/2022275,600 shares $222,381.64 -32.9%1.0%0.1 $0.81 8/15/2022410,600 shares $371,059.22 +1.1%1.5%1.3 $0.90 7/31/2022406,100 shares $297,346.42 -27.2%1.6%1.1 $0.73 7/15/2022557,800 shares $440,662.00 +34.9%2.3%0.8 $0.79 6/30/2022413,600 shares $306,477.60 -70.9%1.7%0.6 $0.74 6/15/20221,420,000 shares $1.36 million -9.0%5.8%1.9 $0.96 5/31/20221,560,000 shares $1.84 million -5.5%6.4%2.3 $1.18 5/15/20221,650,000 shares $2.82 million -55.3%6.8%2.6 $1.71 4/30/20223,690,000 shares $17.93 million +6.7%14.6%6.3 $4.86 4/15/20223,460,000 shares $21.14 million +6.5%13.7%16.7 $6.11 3/31/20223,250,000 shares $28.28 million +4.2%13.1%16.5 $8.70 3/15/20223,120,000 shares $25.40 million +5.4%12.6%18.6 $8.14 2/28/20222,960,000 shares $28.42 million +5.7%11.9%20.8 $9.60 2/15/20222,800,000 shares $27.94 million +12.0%11.3%19.6 $9.98 1/31/20222,500,000 shares $29.68 million +4.6%10.1%18.6 $11.87 1/15/20222,390,000 shares $31.55 million +4.4%9.4%21.1 $13.20 12/31/20212,290,000 shares $36.66 million -1.7%9.0%23.2 $16.01 12/15/20212,330,000 shares $30.64 million -0.9%9.2%24.5 $13.15 11/30/20212,350,000 shares $33.49 million -2.5%9.3%23.9 $14.25 11/15/20212,410,000 shares $39.55 million -3.6%9.5%22.4 $16.41 10/29/20212,500,000 shares $43.90 million No Change9.9%21 $17.56 10/15/20212,500,000 shares $42.55 million -1.2%9.9%21.4 $17.02 9/30/20212,530,000 shares $46.58 million -1.9%10.0%20.4 $18.41 9/15/20212,580,000 shares $47.81 million -4.1%10.2%16.4 $18.53 8/31/20212,690,000 shares $51.78 million +1.9%10.9%15.8 $19.25 8/13/20212,640,000 shares $35.69 million No Change10.7%16.5 $13.52 7/30/20212,640,000 shares $35.22 million No Change11.6%17 $13.34 7/15/20212,640,000 shares $37.73 million +10.0%12.1%16.6 $14.29 6/30/20212,400,000 shares $33.50 million -23.1%9.9%14.5 $13.96 6/15/20213,120,000 shares $47.55 million -1.0%12.9%22.1 $15.24 5/28/20213,150,000 shares $45.68 million -3.4%13.0%20.3 $14.50 5/14/20213,260,000 shares $42.28 million -2.1%N/A19.9 $12.97 4/30/20213,330,000 shares $45.59 million -2.1%N/A17.5 $13.69 4/15/20213,400,000 shares $44.81 million +0.6%N/A14 $13.18 3/31/20213,380,000 shares $46.04 million +50.9%N/A12.9 $13.62 3/15/20212,240,000 shares $37.50 million +1.8%N/A6.7 $16.74Trump’s Secret Manhattan Project (Ad)On January 20, a whole new Manhattan Project is set to begin: Trump’s Manhattan Project. Folks, I just spent six months investigating this...and what I found is shocking.Click here and I’ll show you exactly how to position your money 2/26/20212,200,000 shares $40.44 million -1.8%N/A6.6 $18.38 2/12/20212,240,000 shares $45.52 million -0.4%N/A6.6 $20.32 1/29/20212,250,000 shares $40.95 million +0.9%N/A6.4 $18.20 1/15/20212,230,000 shares $37.08 million -0.9%N/A7.3 $16.63 12/31/20202,250,000 shares $45.52 million +17.8%N/A7.3 $20.23 12/15/20201,910,000 shares $34.02 million -2.1%N/A6.2 $17.81 11/30/20201,950,000 shares $32.62 million +1.6%N/A5.9 $16.73 11/15/20201,920,000 shares $27.49 million +2.7%N/A5 $14.32 10/30/20201,870,000 shares $25.13 million +3.3%N/A5.1 $13.44 10/15/20201,810,000 shares $24.63 million +1.7%N/A5.2 $13.61 9/30/20201,780,000 shares $19.86 million -6.3%N/A5.4 $11.16 9/15/20201,900,000 shares $18.98 million +49.6%N/A6.4 $9.99 8/31/20201,270,000 shares $13.80 million +18.7%8.5%5.3 $10.87 8/14/20201,070,000 shares $13.38 million +2.9%7.2%6.7 $12.50 7/31/20201,040,000 shares $12.17 million +8.0%7.0%6.2 $11.70 7/15/2020963,100 shares $12.96 million +11.1%6.7%5 $13.46 6/30/2020866,900 shares $11.49 million +39.1%6.0%4.6 $13.25 6/15/2020623,200 shares $7.45 million +8.0%4.3%3.7 $11.95 5/29/2020577,300 shares $6.82 million -0.9%4.0%3.6 $11.82 5/15/2020582,300 shares $6.95 million +5.1%4.1%3.9 $11.93 4/30/2020554,300 shares $6.68 million +3.2%3.9%4.2 $12.06 4/15/2020536,900 shares $4.17 million +6.5%3.8%5.2 $7.76 3/31/2020504,100 shares $4.34 million +18.9%3.9%5.1 $8.60 3/13/2020424,100 shares $3.35 million -3.6%3.0%4.6 $7.91 2/28/2020439,800 shares $2.61 million -42.5%3.1%5.1 $5.93 2/14/2020764,900 shares $6.73 million +110.0%6.4%9.5 $8.80 1/31/2020364,300 shares $3.48 million -1.5%2.9%5 $9.55 1/15/2020369,700 shares $3.85 million -2.1%3.1%6.8 $10.41 12/31/2019377,500 shares $3.70 million +6.2%3.1%7.5 $9.81 SPRO Short Interest - Frequently Asked Questions What is Spero Therapeutics' current short interest? Short interest is the volume of Spero Therapeutics shares that have been sold short but have not yet been closed out or covered. As of November 30th, investors have sold 493,800 shares of SPRO short. Learn More on Spero Therapeutics' current short interest. What is a good short interest ratio for Spero 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. SPRO shares currently have a short interest ratio of 2.0. Learn More on Spero Therapeutics's short interest ratio. Is Spero Therapeutics' short interest increasing or decreasing? Spero Therapeutics saw a decrease in short interest during the month of November. As of November 30th, there was short interest totaling 493,800 shares, a decrease of 9.7% from the previous total of 546,800 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 Spero Therapeutics' short interest compare to its competitors? Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Spero Therapeutics: Aurora Cannabis Inc. (8.05%), Fate Therapeutics, Inc. (9.97%), Lexeo Therapeutics, Inc. (9.24%), DiaMedica Therapeutics Inc. (0.35%), Zentalis Pharmaceuticals, Inc. (6.55%), Atai Life Sciences (8.71%), Tenaya Therapeutics, Inc. (21.42%), Aclaris Therapeutics, Inc. (3.47%), Acrivon Therapeutics, Inc. (5.07%), SOPHiA GENETICS SA (0.06%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Co. ($5.70 billion), Charter Communications, Inc. ($4.55 billion), Spotify Technology S.A. ($3.84 billion), Royal Caribbean Cruises Ltd. ($3.07 billion), International Paper ($3.00 billion), Coinbase Global, Inc. ($2.93 billion), Cencora, Inc. ($2.54 billion), Paychex, Inc. ($2.53 billion), SoFi Technologies, Inc. ($2.24 billion), and Reddit, Inc. ($2.00 billion). View all of the most shorted stocks. What does it mean to sell short Spero Therapeutics stock? Short selling SPRO is an investing strategy that aims to generate trading profit from Spero Therapeutics as its price is falling. SPRO shares are trading down $0.04 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 Spero Therapeutics? A short squeeze for Spero 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 SPRO, which in turn drives the price of the stock up even further. How often is Spero 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 SPRO, twice per month. The most recent reporting period available is November, 30 2024. More Short Interest Resources from MarketBeat Related Companies Aurora Cannabis Short Interest Fate Therapeutics Short Interest Lexeo Therapeutics Short Interest DiaMedica Therapeutics Short Interest Zentalis Pharmaceuticals Short Interest Atai Life Sciences Short Interest Tenaya Therapeutics Short Interest Aclaris Therapeutics Short Interest Acrivon Therapeutics Short Interest SOPHiA GENETICS 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:SPRO) was last updated on 12/18/2024 by MarketBeat.com Staff From Our PartnersTrump’s Secret Manhattan ProjectOn January 20, a whole new Manhattan Project is set to begin: Trump’s Manhattan Project. 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