NuCana (NCNA) Short Interest Ratio & Short Volume $0.13 -0.02 (-15.79%) As of 10:20 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock NuCana Short Interest DataNuCana (NCNA) has a short interest of 2.77 million shares, representing 48.60% of the float (the number of shares available for trading by the public). This marks a -9.18% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.0, indicating that it would take 0.0 days of the average trading volume of 71.28 million shares to cover all short positions.Current Short Interest2,770,000 sharesPrevious Short Interest3,050,000 sharesChange Vs. Previous Month-9.18%Dollar Volume Sold Short$97.23 thousandShort Interest Ratio0.0 Days to CoverLast Record DateMay 31, 2025Outstanding Shares6,077,000 sharesFloat Size5,700,000 sharesShort Percent of Float48.60%Today's Trading Volume31,082,732 sharesAverage Trading Volume71,277,414 sharesToday's Volume Vs. Average44% Short Selling NuCana? Sign up to receive the latest short interest report for NuCana and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartNCNA Short Interest Over TimeNCNA Days to Cover Over TimeNCNA Percentage of Float Shorted Over Time NuCana Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 5/31/20252,770,000 shares $97.23 thousand -9.2%48.6%0 $0.04 5/15/20253,050,000 shares $162.87 thousand +408.1%57.2%0.1 $0.05 4/30/2025600,300 shares $354.18 thousand +5,165.8%11.3%0.1 $0.59 4/15/202511,400 shares $9.74 thousand -90.2%0.2%0.1 $0.85 3/31/2025115,900 shares $101.16 thousand +1,217.1%2.2%1.4 $0.87 3/15/20258,800 shares $6.69 thousand -49.1%0.2%0.1 $0.76 2/28/202517,300 shares $16.78 thousand -2.3%0.5%0.2 $0.97 2/15/202517,700 shares $16.11 thousand -66.9%0.5%0.1 $0.91 1/31/202553,500 shares $54.57 thousand -56.0%1.5%0.4 $1.02 1/15/2025121,700 shares $131.45 thousand -15.7%3.3%0.8 $1.08 Get the Latest News and Ratings for NCNA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for NuCana and its competitors with MarketBeat's FREE daily newsletter. 12/31/2024144,300 shares $171.72 thousand +73.9%3.9%0.8 $1.19 12/15/202483,000 shares $105.41 thousand +36.5%2.3%0.3 $1.27 11/30/202460,800 shares $79.04 thousand -3.7%1.7%0 $1.30 11/15/202463,100 shares $94.02 thousand -0.6%3.0%0 $1.49 10/31/202463,500 shares $102.87 thousand -35.4%3.0%0 $1.62 10/15/202498,300 shares $184.80 thousand -62.7%4.7%0.1 $1.88 9/30/2024263,600 shares $606.28 thousand +321.8%12.5%0.2 $2.30 9/15/202462,500 shares $158.75 thousand +0.2%3.2%0.1 $2.54 8/31/202462,400 shares $228.38 thousand +41.5%3.2%0.5 $3.66 8/15/202444,100 shares $145.09 thousand -7.9%2.3%0.4 $3.29 7/31/202447,900 shares $174.36 thousand +42.6%2.4%1.7 $3.64 7/15/202433,600 shares $104.16 thousand -2.6%1.7%1.2 $3.10 6/30/202434,500 shares $87.98 thousand +3.0%1.8%1.4 $2.55 6/15/202433,500 shares $100.50 thousand -10.4%1.7%1.3 $3.00 5/31/202437,400 shares $135.01 thousand +16.2%1.9%0.5 $3.61 5/15/202432,200 shares $122.36 thousand +41.9%1.7%0.4 $3.80 4/30/202422,700 shares $91.03 thousand +144.1%1.2%0.3 $4.01 4/15/20249,300 shares $41.39 thousand -94.4%0.5%0.1 $4.45 3/31/2024164,900 shares $42.87 thousand -93.4%0.4%0.1 $0.26 3/15/20242,480,000 shares $864.78 thousand +2,616.3%5.7%1.6 $0.35 2/29/202491,300 shares $29.22 thousand +293.5%0.2%0.6 $0.32 2/15/202423,200 shares $7.31 thousand -29.9%0.1%0.2 $0.32 1/31/202433,100 shares $9.93 thousand -16.2%0.1%0.3 $0.30 1/15/202439,500 shares $11.81 thousand -34.4%0.1%0.4 $0.30 12/31/202360,200 shares $17.81 thousand -32.7%0.1%0.4 $0.30 12/15/202389,500 shares $31.31 thousand -40.9%0.2%0.7 $0.35 11/30/2023151,400 shares $62.38 thousand -11.7%0.4%2 $0.41 11/15/2023171,400 shares $70.10 thousand +3.1%0.4%2.5 $0.41 10/31/2023166,200 shares $81.44 thousand +101.2%0.4%2.2 $0.49 10/15/202382,600 shares $55.33 thousand +111.8%0.2%1.1 $0.67Everyone’s watching Nvidia right now. Here’s why I’m excited. (Ad)So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal with Saudi Arabia to power its new AI empire 🤯 We’re talking about hundreds of thousands of chips, including their latest Grace Blackwell supercomputer.🎯 Click here to watch the video and get the free ticker XGPT just flagged. 9/30/202339,000 shares $23.79 thousand -26.7%0.1%0.9 $0.61 9/15/202353,200 shares $32.84 thousand -3.5%0.1%1.1 $0.62 8/31/202355,100 shares $39.67 thousand -45.5%0.1%1.1 $0.72 8/15/2023101,100 shares $66.93 thousand +13.1%0.2%2.1 $0.66 7/31/202389,400 shares $67.94 thousand -0.7%0.2%2.2 $0.76 7/15/202390,000 shares $70.38 thousand +23.0%0.2%2.2 $0.78 6/30/202373,200 shares $57.83 thousand -4.3%0.2%1.8 $0.79 6/15/202376,500 shares $57.38 thousand -20.4%0.2%1 $0.75 5/31/202396,100 shares $80.20 thousand +23.2%0.2%1 $0.83 5/15/202378,000 shares $61.93 thousand +67.7%0.2%0.7 $0.79 4/30/202346,500 shares $39.48 thousand -45.0%0.1%0.4 $0.85 4/15/202384,600 shares $75.29 thousand -1.3%0.2%0.7 $0.89 3/31/202385,700 shares $82.28 thousand -27.4%0.2%0.6 $0.96 3/15/2023118,000 shares $142.78 thousand +55.5%0.3%0.8 $1.21 2/28/202375,900 shares $110.06 thousand -1.8%0.2%0.7 $1.45 2/15/202377,300 shares $128.32 thousand +6.0%0.2%0.7 $1.66 1/31/202372,900 shares $110.08 thousand -63.2%0.2%0.8 $1.51 1/15/2023198,200 shares $287.39 thousand +213.6%0.5%2.2 $1.45 12/30/202263,200 shares $41.71 thousand +21.3%0.2%0.7 $0.66 12/15/202252,100 shares $38.03 thousand -21.7%0.1%0.7 $0.73 11/30/202266,500 shares $56.78 thousand -33.8%0.2%0.8 $0.85 11/15/2022100,400 shares $102.41 thousand -31.6%0.2%1.2 $1.02 10/31/2022146,700 shares $146.70 thousand -16.2%0.3%1.6 $1.00 10/15/2022175,000 shares $184.26 thousand -9.1%0.4%1.4 $1.05 9/30/2022192,600 shares $201.27 thousand -24.0%0.5%0.6 $1.05 9/15/2022253,300 shares $387.55 thousand +15.4%0.6%0.8 $1.53 8/31/2022219,500 shares $318.28 thousand +15.0%0.5%0.7 $1.45 8/15/2022190,800 shares $311.00 thousand -34.3%0.4%0.6 $1.63 7/31/2022290,300 shares $534.15 thousand -39.2%0.7%0.9 $1.84 7/15/2022477,100 shares $620.23 thousand +179.8%1.1%1.5 $1.30 6/30/2022170,500 shares $123.61 thousand -35.5%0.4%1 $0.73 6/15/2022264,400 shares $187.72 thousand -16.5%0.6%1.6 $0.71 5/31/2022316,600 shares $186.13 thousand -25.2%0.8%1.1 $0.59 5/15/2022423,500 shares $249.87 thousand +2.9%1.0%0.9 $0.59 4/30/2022411,600 shares $289.35 thousand -23.3%1.0%0.8 $0.70 4/15/2022536,800 shares $526.06 thousand -22.3%1.3%1 $0.98 3/31/2022690,400 shares $689.71 thousand -15.4%1.6%1.4 $1.00 3/15/2022816,100 shares $697.77 thousand -1.0%1.9%1.6 $0.86 2/28/2022824,300 shares $2.23 million -10.1%1.9%1.8 $2.70 2/15/2022917,100 shares $3.00 million -10.1%2.2%3.4 $3.27 1/31/20221,020,000 shares $2.91 million +4.6%2.4%3.3 $2.85 1/15/2022974,900 shares $2.79 million +15.7%2.3%3 $2.86 12/31/2021842,800 shares $2.01 million -15.4%2.0%2 $2.38 12/15/2021996,300 shares $2.38 million -6.0%2.3%0.5 $2.39 11/30/20211,060,000 shares $2.89 million -6.2%2.5%0.6 $2.73 11/15/20211,130,000 shares $3.24 million -6.6%2.7%0.6 $2.87 10/29/20211,210,000 shares $2.93 million -19.9%2.8%0.7 $2.42 10/15/20211,510,000 shares $4.03 million +108.9%3.5%0.8 $2.67 9/30/2021723,000 shares $1.87 million -19.0%1.7%0.4 $2.58 9/15/2021892,100 shares $2.15 million -12.5%2.1%2.4 $2.41Everyone’s watching Nvidia right now. Here’s why I’m excited. (Ad)So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal with Saudi Arabia to power its new AI empire 🤯 We’re talking about hundreds of thousands of chips, including their latest Grace Blackwell supercomputer.🎯 Click here to watch the video and get the free ticker XGPT just flagged. 8/31/20211,020,000 shares $2.71 million +21.6%2.4%1.9 $2.66 8/13/2021838,700 shares $1.75 million -5.1%2.0%1.3 $2.09 7/30/2021883,400 shares $1.87 million +10.7%2.0%1.3 $2.12 7/15/2021798,300 shares $1.88 million +61.0%1.9%1.3 $2.35 6/30/2021495,900 shares $1.37 million +33.4%1.2%0.8 $2.77 6/15/2021371,700 shares $1.07 million +1.2%0.9%0.7 $2.88 5/28/2021367,200 shares $1.12 million +11.5%0.9%0.8 $3.06 5/14/2021329,200 shares $954.68 thousand +39.3%N/A1.5 $2.90 4/30/2021236,300 shares $1.05 million +47.6%N/A1 $4.43 4/15/2021160,100 shares $707.64 thousand +7.2%N/A0.6 $4.42 3/31/2021149,300 shares $733.06 thousand +24.8%N/A0.3 $4.91 3/15/2021119,600 shares $674.54 thousand +55.7%N/A0.2 $5.64 2/26/202176,800 shares $417.79 thousand +78.6%N/A0.1 $5.44 2/12/202143,000 shares $256.71 thousand -57.7%N/A0.1 $5.97 1/29/2021101,600 shares $572.01 thousand -18.7%N/A0.2 $5.63 1/15/2021124,900 shares $811.85 thousand +157.5%N/A0.3 $6.50 12/31/202048,500 shares $218.74 thousand -19.0%N/A0.2 $4.51 12/15/202059,900 shares $270.15 thousand -18.8%N/A0.3 $4.51 11/30/202073,800 shares $332.10 thousand -40.9%0.3%0.3 $4.50 11/15/2020124,800 shares $590.30 thousand -16.2%0.5%0.6 $4.73 10/30/2020149,000 shares $740.53 thousand -73.1%0.5%0.7 $4.97 10/15/2020553,700 shares $2.71 million -55.4%1.9%2.3 $4.89 9/30/20201,240,000 shares $6.41 million -57.1%4.3%5.4 $5.17 9/15/20202,890,000 shares $15.90 million +1.1%9.6%14.1 $5.50 8/31/20202,860,000 shares $15.84 million +10.0%9.5%24.5 $5.54 8/14/20202,600,000 shares $14.14 million +2.0%8.6%22.9 $5.44 7/31/20202,550,000 shares $14.15 million +2.4%8.6%25.2 $5.55 7/15/20202,490,000 shares $13.12 million +0.4%8.4%34.3 $5.27 6/30/20202,480,000 shares $13.62 million -0.4%8.3%38.4 $5.49 6/15/20202,490,000 shares $14.77 million +0.8%8.4%34.3 $5.93 NCNA Short Interest - Frequently Asked Questions What is NuCana's current short interest? Short interest is the volume of NuCana shares that have been sold short but have not yet been closed out or covered. As of May 31st, traders have sold 2,770,000 shares of NCNA short. 48.60% of NuCana's shares are currently sold short. Learn More on NuCana's current short interest. What is a good short interest percentage for NuCana? 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. 48.60% of NuCana's floating shares are currently sold short. Is NuCana's short interest increasing or decreasing? NuCana saw a decline in short interest in the month of May. As of May 31st, there was short interest totaling 2,770,000 shares, a decline of 9.2% from the previous total of 3,050,000 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 NuCana's float size? NuCana currently has issued a total of 5,681,000 shares. Some of NuCana's 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. NuCana currently has a public float of 5,700,000 shares. How does NuCana's short interest compare to its competitors? 48.60% of NuCana's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to NuCana: Syros Pharmaceuticals, Inc. (0.55%), Avenue Therapeutics, Inc. (2.76%), Revelation Biosciences, Inc. (8.41%), Sorrento Therapeutics, Inc. (0.66%), Viracta Therapeutics, Inc. (0.06%), Biophytis S.A. (0.53%), Hepion Pharmaceuticals, Inc. (0.21%), Kiromic BioPharma, Inc. (0.01%), Virpax Pharmaceuticals, Inc. (0.30%), TC Biopharm (Holdings) Plc (176.43%), 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 ($64.96 billion), Invesco QQQ ($27.88 billion), iShares Russell 2000 ETF ($19.94 billion), iShares 20+ Year Treasury Bond ETF ($9.69 billion), Strategy Incorporated ($8.58 billion), SPDR S&P Biotech ETF ($5.72 billion), Invesco S&P 500 Equal Weight ETF ($5.45 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.70 billion), Charter Communications, Inc. ($4.54 billion), and Industrial Select Sector SPDR Fund ($4.49 billion). View all of the most shorted stocks. What does it mean to sell short NuCana stock? Short selling NCNA is an investing strategy that aims to generate trading profit from NuCana as its price is falling. NCNA 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 NuCana? A short squeeze for NuCana 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 NCNA, which in turn drives the price of the stock up even further. How often is NuCana'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 NCNA, twice per month. The most recent reporting period available is May, 31 2025. More Short Interest Resources from MarketBeat Related Companies Syros Pharmaceuticals Short Squeeze Avenue Therapeutics Short Squeeze Revelation Biosciences Short Squeeze Sorrento Therapeutics Short Squeeze Viracta Therapeutics Short Squeeze Biophytis Short Squeeze Hepion Pharmaceuticals Short Squeeze Kiromic BioPharma Short Squeeze Virpax Pharmaceuticals Short Squeeze TC Biopharm Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:NCNA) was last updated on 6/13/2025 by MarketBeat.com Staff From Our PartnersYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? 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