Jasper Therapeutics (JSPR) Short Interest Ratio & Short Volume $7.04 +0.22 (+3.17%) Closing price 03:54 PM EasternExtended Trading$6.90 -0.13 (-1.86%) As of 04:48 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 TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Jasper Therapeutics Short Interest DataJasper Therapeutics (JSPR) has a short interest of 1.54 million shares, representing 12.23% of the float (the number of shares available for trading by the public). This marks a -10.98% decrease in short interest from the previous month. The short interest ratio (days to cover) is 7.5, indicating that it would take 7.5 days of the average trading volume of 314,893 shares to cover all short positions.Current Short Interest1,540,000 sharesPrevious Short Interest1,730,000 sharesChange Vs. Previous Month-10.98%Dollar Volume Sold Short$8.59 millionShort Interest Ratio7.5 Days to CoverLast Record DateJune 15, 2025Outstanding Shares15,020,000 sharesFloat Size12,590,000 sharesShort Percent of Float12.23%Today's Trading Volume336,840 sharesAverage Trading Volume314,893 sharesToday's Volume Vs. Average107% Short Selling Jasper Therapeutics? Sign up to receive the latest short interest report for Jasper 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 ChartJSPR Short Interest Over TimeJSPR Days to Cover Over TimeJSPR Percentage of Float Shorted Over Time Jasper 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 6/15/20251,540,000 shares $8.59 million -11.0%12.2%7.5 $5.58 5/31/20251,730,000 shares $9.60 million -0.6%13.7%8.7 $5.55 5/15/20251,740,000 shares $8.47 million +0.6%13.8%8.4 $4.87 4/30/20251,730,000 shares $9.50 million -3.4%14.6%6.8 $5.49 4/15/20251,790,000 shares $7.57 million -4.3%15.1%5.9 $4.23 3/31/20251,870,000 shares $8.04 million +12.0%15.7%3.6 $4.30 3/15/20251,670,000 shares $9.17 million -19.7%14.1%3.2 $5.49 2/28/20252,080,000 shares $12.33 million -16.8%17.5%4 $5.93 2/15/20252,500,000 shares $15.20 million -8.1%21.1%5 $6.08 1/31/20252,720,000 shares $16.48 million -15.5%24.2%5.7 $6.06 Get the Latest News and Ratings for JSPR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Jasper Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 1/15/20253,220,000 shares $18.74 million +38.8%28.7%7.2 $5.82 12/31/20242,320,000 shares $49.60 million +12.1%20.6%5.6 $21.38 12/15/20242,070,000 shares $42.64 million +0.5%18.4%7.7 $20.60 11/30/20242,060,000 shares $46.99 million +6.2%18.3%7.6 $22.81 11/15/20241,940,000 shares $39.63 million +10.2%17.2%7 $20.43 10/31/20241,760,000 shares $37.28 million -2.8%15.2%6.6 $21.18 10/15/20241,810,000 shares $33.09 million +21.5%15.6%7.3 $18.28 9/30/20241,490,000 shares $28.03 million -22.8%12.9%7.3 $18.81 9/15/20241,930,000 shares $43.91 million -3.5%16.7%9.2 $22.75 8/31/20242,000,000 shares $43.60 million +8.7%17.3%10.6 $21.80 8/15/20241,840,000 shares $33.30 million +12.2%16.0%10.4 $18.10 7/31/20241,640,000 shares $30.32 million +40.2%15.0%10.1 $18.49 7/15/20241,170,000 shares $23.31 million +40.6%10.7%8.3 $19.92 6/30/2024832,100 shares $18.89 million +4.3%7.6%7.1 $22.70 6/15/2024798,200 shares $19.97 million +16.6%7.3%9.3 $25.02 5/31/2024684,800 shares $17.78 million +5.1%6.3%7.5 $25.96 5/15/2024651,500 shares $14.07 million +6.0%6.0%6.5 $21.60 4/30/2024614,400 shares $14.67 million +24.8%5.2%5.4 $23.87 4/15/2024492,400 shares $12.95 million +9.0%4.2%4.4 $26.30 3/31/2024451,900 shares $13.27 million +38.1%3.8%3.5 $29.36 3/15/2024327,300 shares $8.21 million +13.3%2.8%2.6 $25.08 2/29/2024288,900 shares $6.14 million +2.5%2.7%2.1 $21.25 2/15/2024282,000 shares $5.06 million +2.1%2.7%2.2 $17.95 1/31/2024276,200 shares $3.25 million +43.5%3.4%2.5 $11.78 1/15/2024192,500 shares $1.62 million +4.5%2.4%2.2 $8.39 12/31/2023184,300 shares $1.45 million -90.4%2.3%3 $7.89 12/15/20231,910,000 shares $924.06 thousand +0.5%2.4%3.1 $0.48 11/30/20231,900,000 shares $1.17 million +2.7%2.4%4.8 $0.61 11/15/20231,850,000 shares $1.06 million +1.1%2.3%5.3 $0.57 10/31/20231,830,000 shares $1.21 million -2.7%2.3%5.5 $0.66A new rule goes live in July — and the banks are quietly cashing in (Ad)A little-known regulation quietly goes into effect this July. 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We're talking about something they don't want you to notice — because the fewer people who act on this, the better it is for them.To help you get started, we're giving away a FREE Wealth Protection Guide that shows you exactly how 10/15/20231,880,000 shares $1.64 million +6.8%2.4%5.7 $0.87 9/30/20231,760,000 shares $1.23 million +45.5%2.2%5.2 $0.70 9/15/20231,210,000 shares $992.20 thousand +11.0%1.5%3.7 $0.82 8/31/20231,090,000 shares $1.34 million +9.0%1.4%4.1 $1.23 8/15/2023999,600 shares $1.44 million -1.0%1.3%3.6 $1.44 7/31/20231,010,000 shares $1.53 million +19.5%1.3%3.3 $1.51 7/15/2023845,500 shares $1.19 million +3.3%1.1%2.5 $1.41 6/30/2023818,600 shares $1.12 million +13.2%1.0%1.6 $1.37 6/15/2023723,100 shares $1.06 million -16.1%0.9%1.4 $1.47 5/31/2023861,500 shares $1.34 million -18.0%1.1%1.3 $1.55 5/15/20231,050,000 shares $1.64 million -16.7%1.3%1.2 $1.56 4/30/20231,260,000 shares $1.68 million -67.5%1.7%1.2 $1.33 4/15/20233,880,000 shares $5.63 million +5.7%4.8%2.9 $1.45 3/31/20233,670,000 shares $6.64 million +20.7%4.4%1.4 $1.81 3/15/20233,040,000 shares $5.78 million -12.1%3.6%0.8 $1.90 2/28/20233,460,000 shares $6.68 million +46.0%4.1%1 $1.93 2/15/20232,370,000 shares $4.14 million +76.9%2.8%0.7 $1.75 1/31/20231,340,000 shares $2.28 million +52.0%1.6%0.4 $1.70 1/15/2023881,800 shares $1.57 million +240.7%6.9%0.3 $1.78 12/30/2022258,800 shares $124.97 thousand +21.6%2.0%0.1 $0.48 12/15/2022212,900 shares $137.02 thousand +48.1%1.7%3.2 $0.64 11/30/2022143,800 shares $90.31 thousand +30.6%1.2%2.2 $0.63 11/15/2022110,100 shares $71.57 thousand +37.6%0.9%1.6 $0.65 10/31/202280,000 shares $58.40 thousand +78.6%0.7%1.1 $0.73 10/15/202244,800 shares $32.48 thousand -54.2%0.4%0.6 $0.72 9/30/202297,800 shares $77.17 thousand +1,170.1%0.7%1.4 $0.79 9/15/20227,700 shares $10.01 thousand -89.9%0.1%0.1 $1.30 8/31/202276,400 shares $145.16 thousand -25.3%0.6%1.8 $1.90 8/15/2022102,300 shares $214.83 thousand -7.3%0.8%2.8 $2.10 7/31/2022110,300 shares $208.47 thousand -6.6%0.8%3.2 $1.89 7/15/2022118,100 shares $227.93 thousand -9.7%0.9%2.7 $1.93 6/30/2022130,800 shares $252.44 thousand +96.4%1.0%3.1 $1.93 6/15/202266,600 shares $133.87 thousand -26.6%0.5%1.2 $2.01 5/31/202290,700 shares $287.52 thousand -5.6%0.7%1.6 $3.17 5/15/202296,100 shares $287.34 thousand -31.8%0.7%1.3 $2.99 4/30/2022140,900 shares $429.75 thousand +15.4%1.1%1.7 $3.05 4/15/2022122,100 shares $347.99 thousand -6.6%1.0%1.5 $2.85 3/31/2022130,700 shares $463.99 thousand -30.6%1.1%1.4 $3.55 3/15/2022188,400 shares $580.27 thousand -36.3%1.5%2 $3.08 2/28/2022295,900 shares $1.11 million +3.6%2.4%1.9 $3.75 2/15/2022285,500 shares $1.32 million -36.4%2.3%1.6 $4.63 1/31/2022448,900 shares $2.12 million +2.1%3.6%2.1 $4.73 1/15/2022439,700 shares $2.54 million -10.4%3.5%1.4 $5.77 12/31/2021490,800 shares $3.85 million No Change4.0%0.2 $7.85 JSPR Short Interest - Frequently Asked Questions What is Jasper Therapeutics' current short interest? Short interest is the volume of Jasper Therapeutics shares that have been sold short but have not yet been closed out or covered. As of June 15th, traders have sold 1,540,000 shares of JSPR short. 12.23% of Jasper Therapeutics' shares are currently sold short. Learn More on Jasper Therapeutics' current short interest. What is a good short interest ratio for Jasper 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. JSPR shares currently have a short interest ratio of 8.0. Learn More on Jasper Therapeutics's short interest ratio. Which institutional investors are shorting Jasper Therapeutics? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Jasper Therapeutics: 683 Capital Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Jasper 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. 12.23% of Jasper Therapeutics' floating shares are currently sold short. Is Jasper Therapeutics' short interest increasing or decreasing? Jasper Therapeutics saw a decline in short interest in the month of June. As of June 15th, there was short interest totaling 1,540,000 shares, a decline of 11.0% from the previous total of 1,730,000 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 Jasper Therapeutics' float size? Jasper Therapeutics currently has issued a total of 15,020,000 shares. Some of Jasper 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. Jasper Therapeutics currently has a public float of 12,590,000 shares. How does Jasper Therapeutics' short interest compare to its competitors? 12.23% of Jasper Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Jasper Therapeutics: Olema Pharmaceuticals, Inc. (11.71%), Aerovate Therapeutics, Inc. (21.72%), Ocugen, Inc. (23.36%), Monte Rosa Therapeutics, Inc. (19.29%), Atea Pharmaceuticals, Inc. (4.77%), Prime Medicine, Inc. (35.77%), Alpha Teknova, Inc. (25.28%), Rocket Pharmaceuticals, Inc. (17.47%), Lifecore Biomedical, Inc. (7.04%), Foghorn Therapeutics Inc. (5.27%), 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 ($69.26 billion), Invesco QQQ ($25.22 billion), iShares Russell 2000 ETF ($20.33 billion), iShares 20+ Year Treasury Bond ETF ($9.99 billion), MicroStrategy Incorporated ($9.12 billion), Canadian Natural Resources Limited ($6.73 billion), SPDR S&P Biotech ETF ($6.52 billion), Invesco S&P 500 Equal Weight ETF ($5.60 billion), Financial Select Sector SPDR Fund ($4.64 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.59 billion). View all of the most shorted stocks. What does it mean to sell short Jasper Therapeutics stock? Short selling JSPR is an investing strategy that aims to generate trading profit from Jasper Therapeutics as its price is falling. JSPR shares are trading down $0.12 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 Jasper Therapeutics? A short squeeze for Jasper Therapeutics 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 JSPR, which in turn drives the price of the stock up even further. How often is Jasper 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 JSPR, twice per month. The most recent reporting period available is June, 15 2025. More Short Interest Resources from MarketBeat Related Companies OLMA Short Interest Data AVTE Short Interest Data OCGN Short Interest Data GLUE Short Interest Data AVIR Short Interest Data PRME Short Interest Data TKNO Short Interest Data RCKT Short Interest Data LFCR Short Interest Data FHTX 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:JSPR) was last updated on 7/3/2025 by MarketBeat.com Staff From Our PartnersThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredTrump’s New Order Could Boost Social Security Benefits by 400%If you collect—or plan to collect—Social Security, you need to see this. 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