Repare Therapeutics (RPTX) Short Interest Ratio & Short Volume $1.52 -0.01 (-0.65%) Closing price 08/7/2025 04:00 PM EasternExtended Trading$1.52 +0.00 (+0.33%) As of 04:38 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 TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Repare Therapeutics Short Interest DataRepare Therapeutics (RPTX) has a short interest of 561,400 shares, representing 1.82% of the float (the number of shares available for trading by the public). This marks a -11.03% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.6, indicating that it would take 1.6 days of the average trading volume of 703,375 shares to cover all short positions.Current Short Interest561,400 sharesPrevious Short Interest631,000 sharesChange Vs. Previous Month-11.03%Dollar Volume Sold Short$802.80 thousandShort Interest Ratio1.6 Days to CoverLast Record DateJuly 15, 2025Outstanding Shares42,890,000 sharesFloat Size30,770,000 sharesShort Percent of Float1.82%Today's Trading Volume103,543 sharesAverage Trading Volume703,375 sharesToday's Volume Vs. Average15% Short Selling Repare Therapeutics? Sign up to receive the latest short interest report for Repare 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 ChartRPTX Short Interest Over TimeRPTX Days to Cover Over TimeRPTX Percentage of Float Shorted Over Time Repare 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 7/15/2025561,400 shares $802.80 thousand -11.0%1.8%1.6 $1.43 6/30/2025631,000 shares $877.09 thousand +6.3%2.1%2.5 $1.39 6/15/2025593,500 shares $870.66 thousand +5.6%1.9%2.1 $1.47 5/31/2025562,100 shares $781.32 thousand +1.3%1.8%1.9 $1.39 5/15/2025555,100 shares $738.28 thousand +9.0%1.8%1.8 $1.33 4/30/2025509,200 shares $697.60 thousand -26.7%1.7%1.7 $1.37 4/15/2025694,200 shares $763.62 thousand -12.8%2.3%2.3 $1.10 3/31/2025795,900 shares $784.68 thousand -20.4%2.6%3 $0.99 3/15/20251,000,000 shares $1.10 million -5.7%3.3%3 $1.10 2/28/20251,060,000 shares $1.25 million -1.9%3.5%2.3 $1.18 Get the Latest News and Ratings for RPTX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Repare Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 2/15/20251,080,000 shares $1.37 million +0.9%3.5%2.4 $1.27 1/31/20251,070,000 shares $1.31 million -5.3%3.5%2.4 $1.22 1/15/20251,130,000 shares $1.45 million -13.1%3.7%2.7 $1.28 12/31/20241,300,000 shares $1.70 million +53.3%4.3%3.4 $1.31 12/15/2024847,800 shares $1.50 million +47.1%2.9%2.8 $1.77 11/30/2024576,500 shares $1.89 million -5.5%2.0%4.6 $3.28 11/15/2024609,900 shares $1.90 million -18.7%2.1%5.3 $3.11 10/31/2024749,700 shares $2.51 million +4.6%2.6%7.3 $3.35 10/15/2024717,000 shares $2.41 million +0.7%2.5%6.8 $3.36 9/30/2024712,300 shares $2.45 million -3.6%2.5%5.8 $3.44 9/15/2024738,900 shares $2.61 million +2.4%2.6%6.3 $3.53 8/31/2024721,300 shares $2.10 million -2.8%2.5%6.1 $2.91 8/15/2024741,700 shares $2.23 million -0.8%2.6%5.2 $3.00 7/31/2024747,500 shares $2.80 million -16.9%2.6%3 $3.74 7/15/2024900,000 shares $3.24 million +4.0%3.1%3.6 $3.60 6/30/2024865,200 shares $2.86 million +51.1%3.0%3.6 $3.30 6/15/2024572,600 shares $2.18 million +17.8%2.0%2.3 $3.80 5/31/2024485,900 shares $1.69 million -7.3%1.7%2.1 $3.48 5/15/2024524,300 shares $1.87 million -23.2%1.8%2.5 $3.57 4/30/2024682,500 shares $2.12 million +12.2%2.4%3.5 $3.10 4/15/2024608,300 shares $2.11 million -10.7%2.1%4.7 $3.47 3/31/2024681,000 shares $3.21 million +3.4%2.4%4.6 $4.71 3/15/2024658,600 shares $3.48 million -11.4%2.3%4.2 $5.29 2/29/2024743,300 shares $5.17 million -8.5%2.6%3.7 $6.95 2/15/2024812,500 shares $5.65 million -52.8%2.8%3.6 $6.95 1/31/20241,720,000 shares $11.25 million -20.0%5.4%5.7 $6.54 1/15/20242,150,000 shares $14.06 million -2.7%6.8%6 $6.54 12/31/20232,210,000 shares $16.13 million -12.3%7.0%5.9 $7.30 12/15/20232,520,000 shares $17.01 million -7.4%7.9%6.9 $6.75 11/30/20232,720,000 shares $14.01 million +25.9%8.6%7.8 $5.15Critical AI announcement set to ignite AI 2.0 (Ad)A new 100% tariff on imported chips just rattled the tech sector—sending some stocks soaring and others tumbling. But for smart traders, this isn’t chaos. It’s opportunity. One veteran trader is revealing how his simple system spots fast setups in moments like this—no guesswork, no complicated strategies, and no big account required.Click here to see the one pattern built for market volatility—and how to use it. 11/15/20232,160,000 shares $11.43 million +24.1%6.8%6.9 $5.29 10/31/20231,740,000 shares $5.92 million +10.8%5.5%7.4 $3.40 10/15/20231,570,000 shares $8.29 million +23.6%4.9%9.9 $5.28 9/30/20231,270,000 shares $15.34 million +1.6%4.0%10.8 $12.08 9/15/20231,250,000 shares $12.90 million +4.2%3.9%12.3 $10.32 8/31/20231,200,000 shares $11.71 million -3.2%3.8%12.5 $9.76 8/15/20231,240,000 shares $12.05 million +0.8%3.9%12.1 $9.72 7/31/20231,230,000 shares $11.32 million -5.4%3.9%12.6 $9.20 7/15/20231,300,000 shares $14.14 million +2.4%4.1%13.7 $10.88 6/30/20231,270,000 shares $13.44 million -5.9%4.0%12.4 $10.58 6/15/20231,350,000 shares $16.67 million +7.1%4.3%13 $12.35 5/31/20231,260,000 shares $13.37 million -2.3%4.0%12.2 $10.61 5/15/20231,290,000 shares $13.08 million -4.4%4.1%12.8 $10.14 4/30/20231,350,000 shares $12.10 million -12.9%4.3%12 $8.96 4/15/20231,550,000 shares $14.06 million -8.3%5.0%12.6 $9.07 3/31/20231,690,000 shares $16.63 million +1.2%5.4%13.4 $9.84 3/15/20231,670,000 shares $16.60 million +6.4%5.4%11.6 $9.94 2/28/20231,570,000 shares $16.09 million +4.0%5.1%9.7 $10.25 2/15/20231,510,000 shares $17.41 million +4.9%4.9%9.2 $11.53 1/31/20231,440,000 shares $17.80 million -7.1%4.7%7.7 $12.36 1/15/20231,550,000 shares $19.92 million +22.1%5.0%8.8 $12.85 12/30/20221,270,000 shares $18.68 million +64.2%4.1%7.5 $14.71 12/15/2022773,300 shares $11.55 million -39.6%2.5%4.9 $14.93 11/30/20221,280,000 shares $20.52 million -18.0%4.2%8.9 $16.03 11/15/20221,560,000 shares $26.69 million +0.7%5.1%11.7 $17.11 10/31/20221,550,000 shares $23.34 million -1.9%5.1%12.6 $15.06 10/15/20221,580,000 shares $21.09 million -1.9%5.2%10.8 $13.35 9/30/20221,610,000 shares $19.53 million +4.6%5.3%10.5 $12.13 9/15/20221,540,000 shares $20.14 million -4.4%5.0%9.1 $13.08 8/31/20221,610,000 shares $19.19 million +5.2%5.3%7.9 $11.92 8/15/20221,530,000 shares $18.74 million -26.1%5.0%1.8 $12.25 7/31/20222,070,000 shares $26.16 million -1.0%6.8%2.5 $12.64 7/15/20222,090,000 shares $30.45 million +2.0%6.8%2.5 $14.57 6/30/20222,050,000 shares $28.68 million -15.6%6.7%2.4 $13.99 6/15/20222,430,000 shares $32.73 million +30.7%8.0%2.9 $13.47 5/31/20221,860,000 shares $17.07 million -4.6%6.4%2.3 $9.18 5/15/20221,950,000 shares $17.08 million -24.7%6.7%11.6 $8.76 4/30/20222,590,000 shares $28.49 million -12.8%8.9%15.8 $11.00 4/15/20222,970,000 shares $34.07 million +0.3%10.2%17.1 $11.47 3/31/20222,960,000 shares $42.15 million +6.1%10.2%17.2 $14.24 3/15/20222,790,000 shares $33.81 million -0.4%9.6%16.7 $12.12 2/28/20222,800,000 shares $45.00 million +3.7%9.7%16.3 $16.07 2/15/20222,700,000 shares $40.37 million +1.9%9.4%14.7 $14.95 1/31/20222,650,000 shares $40.89 million +4.3%9.1%14.9 $15.43 1/15/20222,540,000 shares $38.68 million +2.0%8.8%13.1 $15.23 12/31/20212,490,000 shares $52.51 million -2.7%9.8%12.3 $21.09 12/15/20212,560,000 shares $52.86 million +4.1%10.1%10.4 $20.65 11/30/20212,460,000 shares $57.74 million +6.0%9.8%9.8 $23.47 11/15/20212,320,000 shares $62.73 million +6.9%9.2%9.8 $27.04 10/29/20212,170,000 shares $54.27 million +26.9%9.6%9.6 $25.01Critical AI announcement set to ignite AI 2.0 (Ad)A new 100% tariff on imported chips just rattled the tech sector—sending some stocks soaring and others tumbling. But for smart traders, this isn’t chaos. It’s opportunity. One veteran trader is revealing how his simple system spots fast setups in moments like this—no guesswork, no complicated strategies, and no big account required.Click here to see the one pattern built for market volatility—and how to use it. 10/15/20211,710,000 shares $37.72 million +131.6%8.5%8.7 $22.06 9/30/2021738,500 shares $19.38 million -12.0%3.7%4 $26.24 9/15/2021838,700 shares $25.83 million -7.1%4.2%6.8 $30.80 8/31/2021903,000 shares $30.70 million -7.1%4.5%6.9 $34.00 8/13/2021972,400 shares $33.17 million +3.0%4.9%7.3 $34.11 7/30/2021943,900 shares $31.53 million +45.8%4.8%6.4 $33.40 7/15/2021647,500 shares $18.96 million -8.8%2.8%4.3 $29.28 6/30/2021709,600 shares $22.13 million -2.5%3.1%5 $31.18 6/15/2021728,100 shares $23.05 million -5.0%3.2%5.1 $31.66 5/28/2021766,500 shares $24.77 million -3.3%3.3%5.2 $32.32 5/14/2021792,600 shares $24.72 million +4.2%3.2%5.3 $31.19 4/30/2021760,900 shares $25.00 million +3.9%3.4%5.2 $32.86 4/15/2021732,300 shares $25.07 million +17.9%3.3%4.8 $34.24 3/31/2021621,100 shares $18.20 million +5.2%2.8%4.1 $29.31 3/15/2021590,300 shares $16.38 million +11.2%2.4%3.7 $27.75 2/26/2021531,100 shares $17.04 million +10.0%2.5%3.6 $32.08 2/12/2021483,000 shares $17.10 million +6.2%2.3%3.2 $35.40 1/29/2021454,900 shares $16.49 million -2.7%2.4%3.4 $36.24 1/15/2021467,600 shares $20.59 million No Change2.6%3.6 $44.04 RPTX Short Interest - Frequently Asked Questions What is Repare Therapeutics' current short interest? Short interest is the volume of Repare Therapeutics shares that have been sold short but have not yet been closed out or covered. As of July 15th, traders have sold 561,400 shares of RPTX short. 1.82% of Repare Therapeutics' shares are currently sold short. Learn More on Repare Therapeutics' current short interest. What is a good short interest ratio for Repare 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. RPTX shares currently have a short interest ratio of 2.0. Learn More on Repare Therapeutics's short interest ratio. Which institutional investors are shorting Repare Therapeutics? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Repare Therapeutics: 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 Repare 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. 1.82% of Repare Therapeutics' floating shares are currently sold short. Is Repare Therapeutics' short interest increasing or decreasing? Repare Therapeutics saw a decrease in short interest during the month of July. As of July 15th, there was short interest totaling 561,400 shares, a decrease of 11.0% from the previous total of 631,000 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 Repare Therapeutics' float size? Repare Therapeutics currently has issued a total of 42,890,000 shares. Some of Repare 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. Repare Therapeutics currently has a public float of 30,770,000 shares. How does Repare Therapeutics' short interest compare to its competitors? 1.82% of Repare Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Repare Therapeutics: Cardiff Oncology, Inc. (28.41%), Editas Medicine, Inc. (10.18%), DBV Technologies S.A. (0.05%), Inozyme Pharma, Inc. (7.79%), Prima BioMed Ltd (2.83%), Bright Minds Biosciences Inc. (3.43%), Larimar Therapeutics, Inc. (9.60%), Entrada Therapeutics, Inc. (5.81%), AC Immune (2.29%), Replimune Group, Inc. (10.31%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Coinbase Global, Inc. ($5.11 billion), Charter Communications, Inc. ($4.76 billion), Reddit Inc. ($2.84 billion), SoFi Technologies, Inc. ($2.79 billion), Seagate Technology Holdings PLC ($2.79 billion), Live Nation Entertainment, Inc. ($2.67 billion), Rocket Lab Corporation ($2.49 billion), AST SpaceMobile, Inc. ($2.12 billion), Moderna, Inc. ($2.09 billion), and Omnicom Group Inc. ($2.04 billion). View all of the most shorted stocks. What does it mean to sell short Repare Therapeutics stock? Short selling RPTX is an investing strategy that aims to generate trading profit from Repare Therapeutics as its price is falling. RPTX shares are trading down $0.01 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 Repare Therapeutics? A short squeeze for Repare 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 RPTX, which in turn drives the price of the stock up even further. How often is Repare 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 RPTX, twice per month. The most recent reporting period available is July, 15 2025. More Short Interest Resources from MarketBeat Related Companies CRDF Short Interest Data EDIT Short Interest Data DBVT Short Interest Data INZY Short Interest Data IMMP Short Interest Data DRUG Short Interest Data LRMR Short Interest Data TRDA Short Interest Data ACIU Short Interest Data REPL 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:RPTX) was last updated on 8/8/2025 by MarketBeat.com Staff From Our PartnersProtect Your Bank Account with THESE 4 Simple StepsStarting as soon as a few months from now, the United States government will make a sweeping change to bank ac...Weiss Ratings | SponsoredHIDDEN IN THE BOOK OF GENESIS…“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...Paradigm Press | SponsoredBREAKING: The House just passed 3 pro-crypto bills!THREE pro-crypto bills just passed the House! 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