PureTech Health (PRTC) Short Interest Ratio & Short Volume $18.54 +0.59 (+3.29%) As of 01:20 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsFDA EventsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock PureTech Health Short Interest DataPureTech Health (PRTC) has a short interest of 3,800 shares, representing 0.02% of the float (the number of shares available for trading by the public). This marks a -26.92% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.6, indicating that it would take 0.6 days of the average trading volume of 4,900 shares to cover all short positions.Current Short Interest3,800 sharesPrevious Short Interest5,200 sharesChange Vs. Previous Month-26.92%Dollar Volume Sold Short$65.55 thousandShort Interest Ratio0.6 Days to CoverLast Record DateJune 30, 2025Outstanding Shares24,020,000 sharesShort Percent of Float0.02%Today's Trading Volume852 sharesAverage Trading Volume4,900 sharesToday's Volume Vs. Average17% Short Selling PureTech Health? Sign up to receive the latest short interest report for PureTech Health and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartPRTC Short Interest Over TimePRTC Days to Cover Over TimePRTC Percentage of Float Shorted Over Time PureTech Health Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/20253,800 shares $65.55 thousand -26.9%0.0%0.6 $17.25 6/15/20255,200 shares $101.97 thousand -37.4%0.0%1 $19.61 5/31/20258,300 shares $153.63 thousand +2.5%0.0%1.6 $18.51 5/15/20258,100 shares $133.08 thousand -22.1%0.0%1.6 $16.43 4/30/202510,400 shares $179.50 thousand -4.6%N/A2.2 $17.26 4/15/202510,900 shares $183.45 thousand +12.4%0.0%2.3 $16.83 3/31/20259,700 shares $191.87 thousand -61.5%0.0%2.2 $19.78 3/15/202525,200 shares $440.87 thousand +12.5%0.1%10.5 $17.50 2/28/202522,400 shares $415.74 thousand -4.3%0.1%7 $18.56 2/15/202523,400 shares $443.43 thousand +4.5%0.1%6.5 $18.95 Get the Latest News and Ratings for PRTC and Related StocksEnter your email address below to receive the latest news and analysts' ratings for PureTech Health and its competitors with MarketBeat's FREE daily newsletter. 1/31/202522,400 shares $427.88 thousand -8.9%N/A5.1 $19.10 1/15/202524,600 shares $445.01 thousand -31.5%N/A5.3 $18.09 12/31/202435,900 shares $662.71 thousand +77.7%N/A8 $18.46 12/15/202420,200 shares $411.07 thousand -1.9%N/A3.6 $20.35 11/30/202420,600 shares $457.53 thousand +106.0%N/A3.4 $22.21 11/15/202410,000 shares $228.20 thousand +58.7%N/A1.7 $22.82 10/31/20246,300 shares $128.21 thousand +18.9%N/A1.2 $20.35 10/15/20245,300 shares $108.01 thousand -24.3%N/A1.1 $20.38 9/30/20247,000 shares $144.27 thousand -28.6%N/A1.6 $20.61 9/15/20249,800 shares $192.28 thousand +139.0%N/A2.6 $19.62 8/31/20244,100 shares $94.30 thousand -2.4%N/A1.5 $23.00 8/15/20244,200 shares $92.82 thousand -2.3%N/A2.6 $22.10 7/31/20244,300 shares $98.86 thousand +7.5%N/A2.7 $22.99 7/15/20244,000 shares $90.60 thousand -13.0%N/A2.9 $22.65 6/30/20244,600 shares $115 thousand -4.2%N/A3.3 $25.00 6/15/20244,800 shares $143.04 thousand No ChangeN/A3 $29.80 5/31/20244,800 shares $150.24 thousand -11.1%N/A3 $31.30 5/15/20245,400 shares $153.95 thousand +1.9%N/A2.3 $28.51 4/30/20245,300 shares $147.81 thousand +3.9%N/A2 $27.89 4/15/20245,100 shares $129.95 thousand +4.1%N/A1.6 $25.48 3/31/20244,900 shares $139.65 thousand +16.7%N/A1.3 $28.50 3/15/20244,200 shares $103.61 thousand -2.3%N/A1.1 $24.67 2/29/20244,300 shares $108.36 thousand +4.9%N/A1.2 $25.20 2/15/20244,100 shares $95.53 thousand +485.7%N/A1.1 $23.30 1/31/2024700 shares $17.61 thousand -22.2%N/A0.2 $25.15 1/15/2024900 shares $21.92 thousand +80.0%N/A0.2 $24.35 12/31/2023500 shares $14.09 thousand +400.0%N/A0.2 $28.18 12/15/2023100 shares $1.75 thousand -75.0%N/A0 $17.52 11/30/2023400 shares $7.98 thousand +100.0%N/A0.1 $19.95 11/15/2023200 shares $4.20 thousand No ChangeN/A0.1 $21.02Forget Nvidia, This “Ghost Town” Company Holds the Key to the AI Boom (Ad)Cold War Discovery Could Unlock $100 Trillion in Wealth Jeff recently traveled to an American ghost town to investigate this crazy Cold War story… Because it could hold the key to the entire $100 trillion AI boom. It involves an American ghost town with just 30 people… And a new twist to the AI boom that could make a lot of people rich. Click here to see the details on what could be the biggest tech story of this decade. 10/31/2023200 shares $3.60 thousand +100.0%N/A0.1 $18.00 10/15/2023100 shares $2.21 thousand No ChangeN/A0.1 $22.05 9/30/2023100 shares $2.30 thousand No ChangeN/A0.1 $23.00 9/15/2023100 shares $2.90 thousand No ChangeN/A0.3 $29.00 8/31/2023100 shares $2.39 thousand No ChangeN/A0.2 $23.90 8/15/2023100 shares $2.52 thousand -93.8%N/A0.3 $25.16 7/31/20231,600 shares $45.76 thousand +1,500.0%N/A4 $28.60 7/15/2023100 shares $2.85 thousand -50.0%N/A0.3 $28.45 6/30/2023200 shares $5.96 thousand +100.0%N/A0.7 $29.80 6/15/2023100 shares $2.85 thousand -50.0%N/A0.2 $28.48 5/31/2023200 shares $5.50 thousand -50.0%N/A0.3 $27.50 5/15/2023400 shares $10.40 thousand -71.4%N/A0.7 $26.00 4/30/20231,400 shares $36.05 thousand No ChangeN/A2 $25.75 4/15/20231,400 shares $38.50 thousand -17.7%N/A1.6 $27.50 3/31/20231,700 shares $49.28 thousand +112.5%N/A1.7 $28.99 3/15/2023800 shares $22.72 thousand +100.0%N/A1 $28.40 2/28/2023400 shares $11.60 thousand -20.0%N/A0.4 $28.99 2/15/2023500 shares $15.59 thousand +66.7%N/A0.4 $31.17 1/31/2023300 shares $9.54 thousand -25.0%N/A0.2 $31.80 1/15/2023400 shares $11.79 thousand +100.0%N/A0.2 $29.49 12/30/2022200 shares $6.38 thousand -50.0%N/A0.1 $31.90 12/15/2022400 shares $14.45 thousand -63.6%N/A0.1 $36.12 11/30/20221,100 shares $38.50 thousand +450.0%N/A0.4 $35.00 11/15/2022200 shares $5.47 thousand -66.7%N/A0.1 $27.37 10/31/2022600 shares $16.81 thousand +100.0%N/A0.2 $28.02 10/15/2022300 shares $7.23 thousand No ChangeN/A0.1 $24.09 9/30/2022300 shares $8.10 thousand -40.0%N/A0.1 $27.00 9/15/2022500 shares $14.70 thousand No ChangeN/A0.1 $29.39 8/31/2022500 shares $14.50 thousand -89.4%N/A0.1 $29.00 8/15/20224,700 shares $143.21 thousand +30.6%N/A1.1 $30.47 7/31/20223,600 shares $88.70 thousand +89.5%N/A0.6 $24.64 7/15/20221,900 shares $44.25 thousand -32.1%N/A0.3 $23.29 6/30/20222,800 shares $58.83 thousand +40.0%N/A0.5 $21.01 6/15/20222,000 shares $39.29 thousand -23.1%N/A0.3 $19.65 5/31/20222,600 shares $58.63 thousand -76.6%N/A0.4 $22.55 5/15/202211,100 shares $235.32 thousand +516.7%N/A1.9 $21.20 4/30/20221,800 shares $37.08 thousand +50.0%N/A0.5 $20.60 4/15/20221,200 shares $32.10 thousand +300.0%N/A0.4 $26.75 3/31/2022300 shares $7.58 thousand -81.3%N/A0.1 $25.26 3/15/20221,600 shares $43.10 thousand No ChangeN/A0.5 $26.94 2/28/20221,600 shares $47.52 thousand +433.3%N/A0.6 $29.70 2/15/2022300 shares $11.55 thousand -70.0%N/A0.1 $38.50 1/31/20221,000 shares $37.01 thousand -16.7%N/A0.3 $37.01 1/15/20221,200 shares $45.78 thousand -95.1%N/A0.4 $38.15 12/31/202124,600 shares $910.20 thousand +6,050.0%N/A7.9 $37.00 12/15/2021400 shares $14.40 thousand -33.3%N/A0.2 $36.00 11/30/2021600 shares $26.14 thousand No ChangeN/A0.2 $43.57 11/15/2021600 shares $26.40 thousand +50.0%N/A0.2 $44.00 10/29/2021400 shares $19.47 thousand -20.0%N/A0.1 $48.67 10/15/2021500 shares $25.79 thousand -93.6%N/A0.1 $51.58Forget Nvidia, This “Ghost Town” Company Holds the Key to the AI Boom (Ad)Cold War Discovery Could Unlock $100 Trillion in Wealth Jeff recently traveled to an American ghost town to investigate this crazy Cold War story… Because it could hold the key to the entire $100 trillion AI boom. It involves an American ghost town with just 30 people… And a new twist to the AI boom that could make a lot of people rich. Click here to see the details on what could be the biggest tech story of this decade. 9/30/20217,800 shares $374.32 thousand +7,700.0%N/A2.5 $47.99 9/15/2021100 shares $4.95 thousand -92.9%N/A0 $49.50 8/31/20211,400 shares $70 thousand -75.4%N/A0.9 $50.00 8/13/20215,700 shares $253.54 thousand -38.0%N/A8.1 $44.48 7/30/20219,200 shares $438.75 thousand +1.1%N/A23 $47.69 7/15/20219,100 shares $393.12 thousand +19.7%N/A22.8 $43.20 6/30/20217,600 shares $372.40 thousand No ChangeN/A25.3 $49.00 6/15/20217,600 shares $438.98 thousand +230.4%N/A19 $57.76 5/28/20212,300 shares $128.48 thousand +21.1%N/A5.8 $55.86 5/14/20211,900 shares $98.90 thousand +46.2%N/A9.5 $52.05 4/30/20211,300 shares $73.84 thousand +8.3%N/A4.3 $56.80 4/15/20211,200 shares $69.36 thousand +20.0%N/A3 $57.80 3/31/20211,000 shares $64 thousand No ChangeN/A1.1 $64.00 3/15/20211,000 shares $58 thousand -33.3%N/A0.9 $58.00 2/26/20211,500 shares $82.10 thousand -16.7%N/A1.1 $54.74 2/12/20211,800 shares $107.95 thousand -28.0%N/A1.2 $59.97 1/29/20212,500 shares $135 thousand +56.3%N/A1.3 $54.00 1/15/20211,600 shares $86.40 thousand No ChangeN/A0.7 $54.00 PRTC Short Interest - Frequently Asked Questions What is PureTech Health's current short interest? Short interest is the volume of PureTech Health shares that have been sold short but have not yet been covered or closed out. As of June 30th, investors have sold 3,800 shares of PRTC short. 0.02% of PureTech Health's shares are currently sold short. Learn More on PureTech Health's current short interest. What is a good short interest ratio for PureTech Health? 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. PRTC shares currently have a short interest ratio of 1.0. Learn More on PureTech Health's short interest ratio. What is a good short interest percentage for PureTech Health? 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. 0.02% of PureTech Health's floating shares are currently sold short. Is PureTech Health's short interest increasing or decreasing? PureTech Health saw a decline in short interest in the month of June. As of June 30th, there was short interest totaling 3,800 shares, a decline of 26.9% from the previous total of 5,200 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 PureTech Health's short interest compare to its competitors? 0.02% of PureTech Health's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to PureTech Health: Tarsus Pharmaceuticals, Inc. (23.17%), Immunocore Holdings PLC Sponsored ADR (17.46%), Arcutis Biotherapeutics, Inc. (19.07%), ARS Pharmaceuticals, Inc. (28.42%), Schrodinger, Inc. (16.64%), Ocular Therapeutix, Inc. (9.10%), Vera Therapeutics, Inc. (0.23%), Biohaven Ltd. (14.27%), Evotec AG (0.21%), 89BIO (11.13%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short PureTech Health stock? Short selling PRTC is an investing strategy that aims to generate trading profit from PureTech Health as its price is falling. PRTC shares are trading down $0.15 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 PureTech Health? A short squeeze for PureTech Health 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 PRTC, which in turn drives the price of the stock up even further. How often is PureTech Health'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 PRTC, twice per month. The most recent reporting period available is June, 30 2025. 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