Plus Therapeutics (PSTV) Short Interest Ratio & Short Volume $0.62 +0.05 (+9.61%) Closing price 04:00 PM EasternExtended Trading$0.63 +0.01 (+2.41%) As of 05:49 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 EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Plus Therapeutics Short Interest DataPlus Therapeutics (PSTV) has a short interest of 4.66 million shares, representing 4.73% of the float (the number of shares available for trading by the public). This marks a 49.36% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.2, indicating that it would take 0.2 days of the average trading volume of 19.98 million shares to cover all short positions.Current Short Interest4,660,000 sharesPrevious Short Interest3,120,000 sharesChange Vs. Previous Month+49.36%Dollar Volume Sold Short$2.12 millionShort Interest Ratio0.2 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares99,260,000 sharesShort Percent of Float4.73%Today's Trading Volume113,638,503 sharesAverage Trading Volume19,983,117 sharesToday's Volume Vs. Average569% Short Selling Plus Therapeutics? Sign up to receive the latest short interest report for Plus Therapeutics and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartPSTV Short Interest Over TimePSTV Days to Cover Over TimePSTV Percentage of Float Shorted Over Time Plus 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 8/31/20254,660,000 shares $2.12 million +49.4%4.7%0.2 $0.46 8/15/20253,120,000 shares $1.96 million +67.7%N/A0.1 $0.63 7/31/20251,860,000 shares $898.38 thousand -50.3%3.1%0.1 $0.48 7/15/20253,740,000 shares $1.19 million -34.8%N/A0.1 $0.32 6/30/20255,740,000 shares $2.00 million +390.6%11.7%0.2 $0.35 6/15/20251,170,000 shares $367.38 thousand +128.0%7.2%0.1 $0.31 5/31/2025513,100 shares $145.16 thousand -85.3%9.2%0 $0.28 5/15/20253,490,000 shares $1.77 million +67.8%22.5%0.2 $0.51 4/30/20252,080,000 shares $1.50 million +84.1%12.6%0.1 $0.72 4/15/20251,130,000 shares $735.63 thousand -9.6%6.8%0.1 $0.65 Get the Latest News and Ratings for PSTV and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Plus Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 3/31/20251,250,000 shares $1.19 million +34.5%7.5%0.1 $0.95 3/15/2025929,600 shares $631.01 thousand +562.1%8.1%0.1 $0.68 2/28/2025140,400 shares $101.79 thousand +134.4%2.4%0 $0.73 2/15/202559,900 shares $74.28 thousand -32.2%1.0%1.1 $1.24 1/31/202588,400 shares $108.73 thousand -12.8%1.5%1.2 $1.23 1/15/2025101,400 shares $121.68 thousand -10.6%1.8%1.4 $1.20 12/31/2024113,400 shares $130.41 thousand +20.6%2.0%1.5 $1.15 12/15/202494,000 shares $119.38 thousand -17.5%1.6%1 $1.27 11/30/2024114,000 shares $145.92 thousand +9.6%2.0%1.3 $1.28 11/15/2024104,000 shares $121.68 thousand +98.9%1.8%1.3 $1.17 10/31/202452,300 shares $68.77 thousand -3.2%0.9%0.7 $1.32 10/15/202454,000 shares $76.14 thousand -43.4%0.9%0.9 $1.41 9/30/202495,400 shares $139.28 thousand +81.0%1.7%1.3 $1.46 9/15/202452,700 shares $78.00 thousand +51.0%0.9%1 $1.48 8/31/202434,900 shares $49.91 thousand -58.2%0.6%0.6 $1.43 8/15/202483,500 shares $116.90 thousand -35.3%1.4%1.4 $1.40 7/31/2024129,000 shares $232.20 thousand -39.3%2.3%2.2 $1.80 7/15/2024212,600 shares $389.06 thousand -9.2%3.8%2.4 $1.83 6/30/2024234,100 shares $344.13 thousand +14.0%4.2%3.1 $1.47 6/15/2024205,300 shares $410.60 thousand +19.9%3.7%2.7 $2.00 5/31/2024171,300 shares $378.57 thousand +6.5%3.1%2.4 $2.21 5/15/2024160,800 shares $373.06 thousand +248.8%2.9%2.2 $2.32 4/30/202446,100 shares $80.24 thousand -0.9%1.1%0.7 $1.74 4/15/202446,500 shares $80.91 thousand -0.6%1.1%1.5 $1.74 3/31/202446,800 shares $84.47 thousand +45.3%1.1%1.5 $1.81 3/15/202432,200 shares $55.71 thousand -21.1%0.8%0.9 $1.73 2/29/202440,800 shares $79.15 thousand -12.1%1.0%1.1 $1.94 2/15/202446,400 shares $92.34 thousand +7.2%1.0%1.2 $1.99 1/31/202443,300 shares $87.03 thousand -25.3%1.0%0.6 $2.01 1/15/202458,000 shares $120.06 thousand +21.9%1.3%0.2 $2.07 12/31/202347,600 shares $83.30 thousand -26.3%1.1%0.2 $1.75 12/15/202364,600 shares $123.39 thousand -25.5%1.5%0.2 $1.91 11/30/202386,700 shares $147.39 thousand -59.7%2.0%0.1 $1.70 11/15/2023215,000 shares $406.35 thousand +441.6%4.9%0.3 $1.89 10/31/202339,700 shares $48.43 thousand -43.8%0.9%0.1 $1.22 10/15/202370,600 shares $97.43 thousand -27.6%2.5%0.2 $1.38 9/30/202397,500 shares $130.65 thousand -30.6%3.4%0.2 $1.34 9/15/2023140,500 shares $195.30 thousand +347.5%5.0%0.3 $1.39 8/31/202331,400 shares $87.61 thousand -50.4%1.1%0.1 $2.79 8/15/202363,300 shares $153.82 thousand +76.8%2.2%1.5 $2.43 7/31/202335,800 shares $88.07 thousand +35.6%1.4%1 $2.46 7/15/202326,400 shares $54.65 thousand -13.2%1.1%0.8 $2.07 6/30/202330,400 shares $61.41 thousand -24.6%1.2%1 $2.02 6/15/202340,300 shares $122.51 thousand -3.8%1.6%1.5 $3.04 5/31/202341,900 shares $168.44 thousand -14.3%1.7%1.7 $4.02 5/15/202348,900 shares $213.69 thousand +154.7%2.0%1.9 $4.37 4/30/202319,200 shares $74.82 thousand -66.6%0.8%0.8 $3.90 4/15/202357,500 shares $15.94 thousand -76.7%N/A0.2 $0.28 3/31/2023247,100 shares $71.66 thousand -13.8%N/A0.9 $0.29 3/15/2023286,600 shares $80.39 thousand +4.1%N/A0.9 $0.28 2/28/2023275,400 shares $93.69 thousand -31.4%N/A0.8 $0.34 2/15/2023401,600 shares $156.62 thousand -14.9%N/A1.2 $0.39 1/31/2023472,000 shares $204.52 thousand +17.2%N/A1.4 $0.43 1/15/2023402,600 shares $192.52 thousand +39.7%N/A1.2 $0.48 12/30/2022288,200 shares $91.36 thousand -31.9%N/A0.7 $0.32 12/15/2022423,100 shares $132.01 thousand -5.0%N/A0.6 $0.31 11/30/2022445,200 shares $179.28 thousand -17.8%N/A0.5 $0.40 11/15/2022541,500 shares $234.96 thousand -11.4%N/A0.4 $0.43 10/31/2022610,900 shares $287.12 thousand -50.3%N/A0.1 $0.47 10/15/20221,230,000 shares $642.06 thousand +388.9%N/A0.3 $0.52 9/30/2022251,600 shares $111.96 thousand +74.0%N/A0.1 $0.45 9/15/2022144,600 shares $89.57 thousand -73.5%N/A0 $0.62 8/31/2022545,600 shares $457.98 thousand +865.7%N/A0.1 $0.84 8/15/202256,500 shares $32.04 thousand +289.7%N/A0 $0.57 7/31/202214,500 shares $7.18 thousand -67.5%N/A0.2 $0.49 7/15/202244,600 shares $22.64 thousand +117.6%0.4%0.4 $0.51 6/30/202220,500 shares $11.07 thousand +57.7%0.2%0.1 $0.54 6/15/202213,000 shares $7.28 thousand +106.4%0.1%0.1 $0.56 5/31/20226,300 shares $3.53 thousand -43.2%N/A0 $0.56 5/15/202211,100 shares $5.38 thousand -77.3%N/A0.1 $0.48 4/30/202248,900 shares $32.76 thousand -49.2%N/A0.2 $0.67 4/15/202296,300 shares $87.54 thousand +154.1%N/A0.3 $0.91 3/31/202237,900 shares $37.90 thousand -58.3%N/A0 $1.00 3/15/202290,900 shares $87.26 thousand -69.7%N/A0 $0.96 2/28/2022300,000 shares $312 thousand +11.4%N/A0.1 $1.04 2/15/2022269,400 shares $280.18 thousand -38.3%1.3%0.1 $1.04 1/31/2022436,400 shares $411.96 thousand +70.2%2.9%0.1 $0.94 1/15/2022256,400 shares $264.09 thousand +594.9%1.7%0.1 $1.03 12/31/202136,900 shares $38.75 thousand -0.3%N/A0 $1.05 12/15/202137,000 shares $44.40 thousand -62.7%0.3%0.1 $1.20 11/30/202199,100 shares $148.65 thousand -13.1%0.7%0.3 $1.50 11/15/2021114,000 shares $191.52 thousand +91.6%0.8%0.1 $1.68 10/29/202159,500 shares $113.05 thousand -47.9%0.4%0 $1.90 10/15/2021114,200 shares $199.85 thousand -28.5%0.8%0.1 $1.75 9/30/2021159,600 shares $304.84 thousand -66.0%1.1%0.1 $1.91 9/15/2021469,400 shares $868.39 thousand +121.0%3.1%0.3 $1.85 8/31/2021212,400 shares $414.18 thousand +41.7%1.4%0.2 $1.95 8/13/2021149,900 shares $311.79 thousand -40.8%1.3%0.3 $2.08 7/30/2021253,400 shares $481.46 thousand -14.1%2.1%0.6 $1.90 7/15/2021295,000 shares $660.80 thousand -9.7%2.9%0.3 $2.24 6/30/2021326,700 shares $836.35 thousand -3.9%3.2%0.3 $2.56 6/15/2021340,100 shares $925.07 thousand -65.0%3.7%0.3 $2.72 5/28/2021972,000 shares $2.30 million -28.5%10.7%0.8 $2.37 5/14/20211,360,000 shares $2.77 million +34.7%15.0%1.1 $2.04 4/30/20211,010,000 shares $2.41 million +103.3%11.3%0.6 $2.39 4/15/2021496,700 shares $1.09 million +30.9%5.6%0.5 $2.19 3/31/2021379,600 shares $903.45 thousand +125.3%4.2%0.4 $2.38 3/15/2021168,500 shares $500.45 thousand +12.4%1.9%0.2 $2.97 2/26/2021149,900 shares $449.70 thousand -2.9%1.7%0.2 $3.00 2/12/2021154,300 shares $524.62 thousand +2.7%3.4%0.2 $3.40 1/29/2021150,300 shares $371.24 thousand +440.7%3.3%0.4 $2.47 1/15/202127,800 shares $65.89 thousand -25.1%0.6%0.1 $2.37 12/31/202037,100 shares $77.54 thousand -52.8%0.8%0.1 $2.09 12/15/202078,600 shares $158.77 thousand +104.7%1.8%0.3 $2.02 11/30/202038,400 shares $82.18 thousand -65.5%0.9%0.1 $2.14 11/15/2020111,300 shares $254.88 thousand -29.2%2.5%0.1 $2.29 10/30/2020157,300 shares $353.93 thousand -28.6%3.5%0.2 $2.25 10/15/2020220,400 shares $579.65 thousand -42.1%4.9%0.2 $2.63 9/30/2020380,500 shares $974.08 thousand +29.6%9.1%0.4 $2.56 PSTV Short Interest - Frequently Asked Questions What is Plus Therapeutics' current short interest? Short interest is the volume of Plus Therapeutics shares that have been sold short but have not yet been closed out or covered. As of August 31st, investors have sold 4,660,000 shares of PSTV short. 4.73% of Plus Therapeutics' shares are currently sold short. Learn More on Plus Therapeutics' current short interest. What is a good short interest percentage for Plus 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. 4.73% of Plus Therapeutics' floating shares are currently sold short. Is Plus Therapeutics' short interest increasing or decreasing? Plus Therapeutics saw a increase in short interest in the month of August. As of August 31st, there was short interest totaling 4,660,000 shares, an increase of 49.4% from the previous total of 3,120,000 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. How does Plus Therapeutics' short interest compare to its competitors? 4.73% of Plus Therapeutics' shares are currently sold short. Here is how the short interest of companies in the industry of "medical equipment" compare to Plus Therapeutics: LENSAR, Inc. (6.51%), Avita Medical Inc. (18.76%), Lucid Diagnostics Inc. (13.06%), Lakeland Industries, Inc. (11.25%), Safe Pro Group Inc. (0.98%), Profound Medical (2.33%), Inovio Pharmaceuticals, Inc. (12.50%), Hyperfine, Inc. (3.52%), Pro-Dex, Inc. (12.44%), InspireMD, Inc. (0.69%), 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 Plus Therapeutics stock? Short selling PSTV is an investing strategy that aims to generate trading profit from Plus Therapeutics as its price is falling. PSTV shares are trading up $0.16 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 Plus Therapeutics? A short squeeze for Plus 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 PSTV, which in turn drives the price of the stock up even further. How often is Plus 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 PSTV, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies LENSAR Short Squeeze Avita Medical Short Squeeze Lucid Diagnostics Short Squeeze Lakeland Industries Short Squeeze Safe Pro Group Short Squeeze Profound Medical Short Squeeze Inovio Pharmaceuticals Short Squeeze Hyperfine Short Squeeze Pro-Dex Short Squeeze InspireMD 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:PSTV) was last updated on 9/26/2025 by MarketBeat.com Staff From Our PartnersThis is the “End of Tesla” as we know it…Jeff has identified five of the past seven number-one performing tech stocks — before they took off. 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