Puma Biotechnology (PBYI) Short Interest Ratio & Short Volume $2.97 -0.05 (-1.66%) As of 01/17/2025 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrends Puma Biotechnology Short Interest DataPuma Biotechnology (PBYI) has a short interest of 3.01 million shares, representing 8.62% of the float (the number of shares available for trading by the public). This marks a 3.44% increase in short interest from the previous month. The short interest ratio (days to cover) is 5.8, indicating that it would take 5.8 days of the average trading volume of 645,449 shares to cover all short positions.Current Short Interest3,010,000 sharesPrevious Short Interest2,910,000 sharesChange Vs. Previous Month+3.44%Dollar Volume Sold Short$9.18 millionShort Interest Ratio5.8 Days to CoverLast Record DateDecember 31, 2024Outstanding Shares49,088,000 sharesFloat Size34,920,000 sharesShort Percent of Float8.62%Today's Trading Volume544,127 sharesAverage Trading Volume645,449 sharesToday's Volume Vs. Average84% Short Selling Puma Biotechnology? Sign up to receive the latest short interest report for Puma Biotechnology and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartPBYI Short Interest Over TimePBYI Days to Cover Over TimePBYI Percentage of Float Shorted Over Time Puma Biotechnology Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 12/31/20243,010,000 shares $9.18 million +3.4%8.6%5.8 $3.05 12/15/20242,910,000 shares $8.38 million +3.6%8.4%7.2 $2.88 11/30/20242,810,000 shares $9.53 million -5.7%8.1%7.2 $3.39 11/15/20242,980,000 shares $7.21 million -6.6%8.6%8.2 $2.42 10/31/20243,190,000 shares $9.09 million -11.9%9.1%9.2 $2.85 10/15/20243,620,000 shares $10.32 million +6.2%10.3%11.2 $2.85 9/30/20243,410,000 shares $8.70 million -5.8%9.7%9.8 $2.55 9/15/20243,620,000 shares $9.16 million +4.0%10.3%7.6 $2.53 8/31/20243,480,000 shares $8.70 million -13.0%10.0%7.3 $2.50 8/15/20244,000,000 shares $10.60 million +4.7%11.5%8.6 $2.65 Get the Latest News and Ratings for PBYI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Puma Biotechnology and its competitors with MarketBeat's FREE daily newsletter. 7/31/20243,820,000 shares $13.69 million +0.5%10.8%8 $3.59 7/15/20243,800,000 shares $13.91 million +29.7%10.9%8.2 $3.66 6/30/20242,930,000 shares $9.55 million +8.5%8.4%6.5 $3.26 6/15/20242,700,000 shares $8.40 million +7.6%7.6%7.4 $3.11 5/31/20242,510,000 shares $9.66 million -17.4%7.1%6.1 $3.85 5/15/20243,040,000 shares $14.14 million -2.3%8.6%5.8 $4.65 4/30/20243,110,000 shares $15.77 million -6.6%9.0%5.4 $5.07 4/15/20243,330,000 shares $17.82 million +1.2%9.6%5.9 $5.35 3/31/20243,290,000 shares $17.44 million -1.2%9.5%5.4 $5.30 3/15/20243,330,000 shares $16.65 million -18.6%9.0%5.5 $5.00 2/29/20244,090,000 shares $25.44 million +13.9%11.0%7.8 $6.22 2/15/20243,590,000 shares $25.09 million +11.8%9.8%7.9 $6.99 1/31/20243,210,000 shares $15.09 million +6.3%8.7%9 $4.70 1/15/20243,020,000 shares $14.95 million +4.1%8.1%9.4 $4.95 12/31/20232,900,000 shares $12.56 million +5.1%7.8%11.1 $4.33 12/15/20232,760,000 shares $10.82 million +35.3%7.4%12.4 $3.92 11/30/20232,040,000 shares $7.96 million +8.5%5.5%10.1 $3.90 11/15/20231,880,000 shares $7.14 million +9.3%5.1%11.1 $3.80 10/31/20231,720,000 shares $4.23 million -1.2%4.6%12 $2.46 10/15/20231,740,000 shares $4.11 million -0.6%4.7%13.5 $2.36 9/30/20231,750,000 shares $4.60 million +1.2%4.7%12.6 $2.63 9/15/20231,730,000 shares $5.29 million +3.6%4.7%10.4 $3.06 8/31/20231,670,000 shares $6.06 million +2.5%4.5%9.3 $3.63 8/15/20231,630,000 shares $5.85 million +0.6%4.1%8 $3.59 7/31/20231,620,000 shares $5.86 million -2.4%4.1%7.6 $3.62 7/15/20231,660,000 shares $5.53 million +3.8%4.3%7.8 $3.33 6/30/20231,600,000 shares $5.65 million +11.1%4.1%7.2 $3.53 6/15/20231,440,000 shares $5.11 million +5.9%3.7%5.9 $3.55 5/31/20231,360,000 shares $4.56 million No Change3.4%4.8 $3.35 5/15/20231,360,000 shares $4.00 million -1.5%3.4%4.5 $2.94Kamala’s final humiliation (Ad)The investments connected to Trump's second term in ways that almost nobody outside his inner circle is aware of… yet have the potential to deliver colossal returns over the next four years. 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It’s all waiting for you here. 4/30/20231,380,000 shares $3.70 million +7.0%3.6%4.5 $2.68 4/15/20231,290,000 shares $3.90 million No Change3.3%4.1 $3.02 3/31/20231,290,000 shares $3.99 million +8.4%3.3%3.9 $3.09 3/15/20231,190,000 shares $2.88 million +3.5%3.1%3.4 $2.42 2/28/20231,150,000 shares $4.44 million +2.7%3.0%3.2 $3.86 2/15/20231,120,000 shares $4.76 million +6.7%3.0%3.1 $4.25 1/31/20231,050,000 shares $4.52 million +12.2%2.8%2.5 $4.30 1/15/2023935,800 shares $4.51 million +6.3%2.5%2.4 $4.82 12/30/2022880,500 shares $3.72 million -38.0%2.3%2.4 $4.23 12/15/20221,420,000 shares $6.97 million -5.3%3.7%4.4 $4.91 11/30/20221,500,000 shares $6.78 million +0.7%3.9%5.7 $4.52 11/15/20221,490,000 shares $5.07 million -2.0%3.9%6.4 $3.40 10/31/20221,520,000 shares $3.31 million No Change3.9%8.5 $2.18 10/15/20221,520,000 shares $3.39 million -5.0%3.9%8.2 $2.23 9/30/20221,600,000 shares $3.79 million -9.6%4.2%7.7 $2.37 9/15/20221,770,000 shares $4.53 million -2.2%4.6%5.8 $2.56 8/31/20221,810,000 shares $4.85 million -1.1%4.7%5.1 $2.68 8/15/20221,830,000 shares $6.31 million +2.2%4.7%4.6 $3.45 7/31/20221,790,000 shares $5.24 million -3.8%4.7%4 $2.93 7/15/20221,860,000 shares $5.86 million -7.5%4.9%4.1 $3.15 6/30/20222,010,000 shares $5.73 million -41.7%5.3%4.4 $2.85 6/15/20223,450,000 shares $10.52 million -1.2%9.1%7.1 $3.05 5/31/20223,490,000 shares $6.77 million +4.8%9.3%8.3 $1.94 5/15/20223,330,000 shares $6.09 million +4.7%8.9%7.4 $1.83 4/30/20223,180,000 shares $7.50 million +2.9%9.2%7.4 $2.36 4/15/20223,090,000 shares $8.74 million -1.6%9.0%7.1 $2.83 3/31/20223,140,000 shares $9.04 million +10.6%9.1%5.7 $2.88 3/15/20222,840,000 shares $7.72 million +21.4%8.2%5.2 $2.72 2/28/20222,340,000 shares $5.38 million +1.7%6.4%3.9 $2.30 2/15/20222,300,000 shares $5.31 million -6.5%6.4%3.7 $2.31 1/31/20222,460,000 shares $6.05 million -4.3%6.8%3.4 $2.46 1/15/20222,570,000 shares $7.14 million -13.5%7.1%3.2 $2.78 12/31/20212,970,000 shares $9.03 million +6.5%8.3%4.3 $3.04 12/15/20212,790,000 shares $8.40 million -10.0%8.0%4 $3.01 11/30/20213,100,000 shares $9.61 million +22.5%8.9%4.8 $3.10 11/15/20212,530,000 shares $9.31 million +4.1%7.2%4.4 $3.68 10/29/20212,430,000 shares $12.39 million -2.8%7.0%4.8 $5.10 10/15/20212,500,000 shares $15.13 million -7.8%7.2%5.8 $6.05 9/30/20212,710,000 shares $19.00 million -5.2%7.8%6.7 $7.01 9/15/20212,860,000 shares $19.91 million -0.4%8.2%6.8 $6.96 8/31/20212,870,000 shares $21.73 million -2.4%8.2%6.8 $7.57 8/13/20212,940,000 shares $21.34 million -4.6%8.4%7.1 $7.26 7/30/20213,080,000 shares $23.16 million +6.6%8.9%7.8 $7.52 7/15/20212,890,000 shares $23.67 million +7.0%8.5%8.6 $8.19 6/30/20212,700,000 shares $24.79 million -28.4%7.9%7.8 $9.18 6/15/20213,770,000 shares $39.89 million -2.3%11.0%12.4 $10.58 5/28/20213,860,000 shares $40.72 million -6.1%11.3%13.9 $10.55 5/14/20214,110,000 shares $39.83 million -0.2%12.0%13.6 $9.69 4/30/20214,120,000 shares $40.99 million -10.4%12.1%12.5 $9.95 4/15/20214,600,000 shares $46.87 million -5.7%13.6%12.5 $10.19Kamala’s final humiliation (Ad)The investments connected to Trump's second term in ways that almost nobody outside his inner circle is aware of… yet have the potential to deliver colossal returns over the next four years. 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It’s all waiting for you here. 3/31/20214,880,000 shares $45.77 million -0.2%14.5%12.9 $9.38 3/15/20214,890,000 shares $55.21 million +0.2%14.5%11.8 $11.29 2/26/20214,880,000 shares $51.48 million +3.6%14.5%10.2 $10.55 2/12/20214,710,000 shares $58.88 million -4.3%14.0%9.1 $12.50 1/29/20214,920,000 shares $57.96 million +0.8%14.6%9.2 $11.78 1/15/20214,880,000 shares $53.68 million -27.0%14.5%8.9 $11.00 12/31/20206,680,000 shares $69.41 million -14.5%19.8%11.8 $10.39 12/15/20207,810,000 shares $85.13 million +0.9%23.2%13.2 $10.90 11/30/20207,740,000 shares $90.79 million -4.2%23.0%13.2 $11.73 11/15/20208,080,000 shares $72.15 million +1.0%24.0%14 $8.93 10/30/20208,000,000 shares $72.80 million +2.2%24.3%13.6 $9.10 10/15/20207,830,000 shares $76.11 million +7.7%23.8%11.1 $9.72 9/30/20207,270,000 shares $73.35 million -1.5%N/A9.9 $10.09 9/15/20207,380,000 shares $73.73 million -0.9%22.5%9.2 $9.99 8/31/20207,450,000 shares $76.66 million +1.5%22.7%8.3 $10.29 8/14/20207,340,000 shares $72.15 million +3.8%22.4%7.6 $9.83 7/31/20207,070,000 shares $72.89 million +2.5%21.2%6.7 $10.31 7/15/20206,900,000 shares $69 million +1.2%20.8%6.6 $10.00 6/30/20206,820,000 shares $69.77 million -7.6%20.6%6.4 $10.23 6/15/20207,380,000 shares $70.48 million -0.8%22.3%6.7 $9.55 5/29/20207,440,000 shares $80.43 million -5.6%22.4%6.4 $10.81 5/15/20207,880,000 shares $99.60 million +0.1%23.7%6.4 $12.64 4/30/20207,870,000 shares $79.09 million -6.8%23.2%5.8 $10.05 4/15/20208,440,000 shares $72.25 million -1.3%25.0%4.7 $8.56 3/31/20208,550,000 shares $91.23 million +17.1%25.3%4.3 $10.67 3/13/20207,303,300 shares $58.35 million +3.2%21.7%6 $7.99 2/28/20207,080,000 shares $52.25 million -3.5%21.0%3.5 $7.38 2/14/20207,340,000 shares $73.11 million -7.7%22.0%3.4 $9.96 1/31/20207,950,000 shares $84.35 million +1.7%23.6%3.6 $10.61 PBYI Short Interest - Frequently Asked Questions What is Puma Biotechnology's current short interest? Short interest is the volume of Puma Biotechnology shares that have been sold short but have not yet been closed out or covered. As of December 31st, traders have sold 3,010,000 shares of PBYI short. 8.62% of Puma Biotechnology's shares are currently sold short. Learn More on Puma Biotechnology's current short interest. What is a good short interest ratio for Puma Biotechnology? 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. PBYI shares currently have a short interest ratio of 6.0. Learn More on Puma Biotechnology's short interest ratio. What is a good short interest percentage for Puma Biotechnology? 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. 8.62% of Puma Biotechnology's floating shares are currently sold short. Is Puma Biotechnology's short interest increasing or decreasing? Puma Biotechnology saw a increase in short interest during the month of December. As of December 31st, there was short interest totaling 3,010,000 shares, an increase of 3.4% from the previous total of 2,910,000 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 Puma Biotechnology's float size? Puma Biotechnology currently has issued a total of 49,088,000 shares. Some of Puma Biotechnology'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. Puma Biotechnology currently has a public float of 34,920,000 shares. How does Puma Biotechnology's short interest compare to its competitors? 8.62% of Puma Biotechnology's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Puma Biotechnology: Autolus Therapeutics plc (3.24%), Erasca, Inc. (20.06%), ORIC Pharmaceuticals, Inc. (16.21%), Tectonic Therapeutic (7.34%), Kura Oncology, Inc. (16.00%), CARGO Therapeutics, Inc. (18.87%), Humacyte, Inc. (28.38%), Pharvaris (0.96%), Annexon, Inc. (8.42%), Keros Therapeutics, Inc. (10.64%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Co. ($5.83 billion), Charter Communications, Inc. ($3.77 billion), Reddit, Inc. ($2.98 billion), The Kroger Co. ($2.97 billion), International Paper ($2.64 billion), SoFi Technologies, Inc. ($1.99 billion), Rivian Automotive, Inc. ($1.93 billion), Onsemi ($1.81 billion), SoundHound AI, Inc. ($1.59 billion), and Moderna, Inc. ($1.57 billion). View all of the most shorted stocks. What does it mean to sell short Puma Biotechnology stock? Short selling PBYI is an investing strategy that aims to generate trading profit from Puma Biotechnology as its price is falling. PBYI shares are trading down $0.05 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 Puma Biotechnology? A short squeeze for Puma Biotechnology 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 PBYI, which in turn drives the price of the stock up even further. How often is Puma Biotechnology'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 PBYI, twice per month. The most recent reporting period available is December, 31 2024. More Short Interest Resources from MarketBeat Related Companies Autolus Therapeutics Short Squeeze Erasca Short Squeeze ORIC Pharmaceuticals Short Squeeze Tectonic Therapeutic Short Squeeze Kura Oncology Short Squeeze CARGO Therapeutics Short Squeeze Humacyte Short Squeeze Pharvaris Short Squeeze Annexon Short Squeeze Keros Therapeutics 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:PBYI) was last updated on 1/20/2025 by MarketBeat.com Staff From Our PartnersLast time you’ll see this priced at $1.00When was the last time you bought something for a buck? 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