Phio Pharmaceuticals (PHIO) Short Interest Ratio & Short Volume $2.73 +0.03 (+1.11%) Closing price 04/17/2025 04:00 PM EasternExtended Trading$2.73 0.00 (0.00%) As of 04/17/2025 06:24 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 ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Phio Pharmaceuticals Short Interest DataPhio Pharmaceuticals (PHIO) has a short interest of 78,700 shares, representing 1.86% of the float (the number of shares available for trading by the public). This marks a 14.22% increase 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 2.30 million shares to cover all short positions.Current Short Interest78,700 sharesPrevious Short Interest68,900 sharesChange Vs. Previous Month+14.22%Dollar Volume Sold Short$102,310.00Short Interest Ratio0.0 Days to CoverLast Record DateMarch 31, 2025Outstanding Shares4,778,000 sharesFloat Size4,230,000 sharesShort Percent of Float1.86%Today's Trading Volume1,624,380 sharesAverage Trading Volume2,297,107 sharesToday's Volume Vs. Average71% Short Selling Phio Pharmaceuticals? Sign up to receive the latest short interest report for Phio Pharmaceuticals and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartPHIO Short Interest Over TimePHIO Days to Cover Over TimePHIO Percentage of Float Shorted Over Time Phio Pharmaceuticals Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 3/31/202578,700 shares $102,310.00 +14.2%1.9%0 $1.30 3/15/202568,900 shares $88,881.00 +3.3%1.6%0 $1.29 2/28/202566,700 shares $94,714.00 +46.6%1.6%0 $1.42 2/15/202545,500 shares $82,355.00 -54.3%1.1%0 $1.81 1/31/202599,600 shares $205,176.00 -82.4%2.4%0 $2.06 1/15/2025566,400 shares $1.51 million +749.2%17.3%0.1 $2.66 12/31/202466,700 shares $120,060.00 +67.6%4.0%0.2 $1.80 12/15/202439,800 shares $111,838.00 -17.3%2.7%0.1 $2.81 11/30/202448,100 shares $130,832.00 +0.2%4.7%0.7 $2.72 11/15/202448,000 shares $106,560.00 -6.8%4.7%0.7 $2.22 Get the Latest News and Ratings for PHIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Phio Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 10/31/202451,500 shares $153,470.00 +141.8%6.2%0.8 $2.98 10/15/202421,300 shares $58,788.00 -55.9%2.6%0.3 $2.76 9/30/202448,300 shares $170,016.00 +182.5%5.8%0.9 $3.52 9/15/202417,100 shares $56,259.00 +83.9%2.1%0.4 $3.29 8/31/20249,300 shares $25,296.00 -47.2%1.1%0.3 $2.72 8/15/202417,600 shares $45,408.00 +7.3%3.5%0.5 $2.58 7/31/202416,400 shares $52,480.00 +178.0%3.3%0.5 $3.20 7/15/20245,900 shares $27,552.41 -62.7%1.2%0.2 $4.67 6/30/202415,800 shares $98,388.18 -89.6%3.1%0.7 $6.23 6/15/2024152,000 shares $107,996.00 -14.2%3.3%0.7 $0.71 5/31/2024177,100 shares $129,283.00 +1.3%3.9%0.7 $0.73 5/15/2024174,800 shares $139,840.00 -5.4%3.8%0.5 $0.80 4/30/2024184,700 shares $128,735.90 +446.5%4.1%0.4 $0.70 4/15/202433,800 shares $22,003.80 +57.9%0.8%0.1 $0.65 3/31/202421,400 shares $14,552.00 -87.9%0.5%0.1 $0.68 3/15/2024176,600 shares $167,593.40 +283.9%7.4%0.6 $0.95 2/29/202446,000 shares $49,680.00 -30.0%1.9%0.1 $1.08 2/15/202465,700 shares $42,705.00 +390.3%2.7%0.1 $0.65 1/31/202413,400 shares $7,959.60 -74.1%0.6%0 $0.59 1/15/202451,800 shares $35,700.56 -66.4%2.2%0.1 $0.69 12/31/2023154,200 shares $117,192.00 +23.8%6.4%0.1 $0.76 12/15/2023124,600 shares $94,696.00 +783.7%5.2%0.1 $0.76 11/30/202314,100 shares $15,418.35 -35.0%0.6%0 $1.09 11/15/202321,700 shares $22,568.00 -35.2%0.9%0 $1.04 10/31/202333,500 shares $41,540.00 -91.2%1.5%0 $1.24 10/15/2023379,900 shares $566,051.00 +1,920.7%17.4%0.4 $1.49 9/30/202318,800 shares $28,388.00 +8.7%0.9%0.8 $1.51 9/15/202317,300 shares $28,545.00 +17.7%0.8%0.6 $1.65 8/31/202314,700 shares $31,311.00 +19.5%0.7%0.5 $2.13 8/15/202312,300 shares $27,675.00 +2.5%0.6%0.2 $2.25Trump Treasure April 19 (Ad)Thanks to President Trump… A $900 investment across5 specific cryptos… Could gain 12,000% so quickly that, just 12 months later…If I’m right about this (like I was before) a modest $900 investment… 7/31/202312,000 shares $32,040.00 -60.0%0.8%0 $2.67 7/15/202330,000 shares $81,900.00 +18.1%2.0%0.1 $2.73 6/30/202325,400 shares $72,898.00 -71.9%1.7%0 $2.87 6/15/202390,300 shares $295,281.00 -12.6%6.1%0.2 $3.27 5/31/2023103,300 shares $361,550.00 +588.7%7.0%0.2 $3.50 5/15/202315,000 shares $50,550.00 -49.8%1.0%0 $3.37 4/30/202329,900 shares $101,062.00 +116.7%2.7%0.2 $3.38 4/15/202313,800 shares $70,816.08 -25.4%1.2%0.1 $5.13 3/31/202318,500 shares $103,970.00 -39.5%1.7%0.8 $5.62 3/15/202330,600 shares $174,132.36 -30.6%2.8%0.8 $5.69 2/28/202344,100 shares $241,668.00 +3.5%4.1%1.2 $5.48 2/15/202342,600 shares $221,520.00 +27.5%3.9%1.2 $5.20 1/31/202333,400 shares $207,808.12 -91.0%3.0%1.1 $6.22 1/15/2023370,600 shares $199,678.91 +305.9%2.8%1.4 $0.54 12/30/202291,300 shares $33,963.60 +157.2%0.7%0.4 $0.37 12/15/202235,500 shares $12,783.55 +7.3%0.3%0.3 $0.36 11/30/202233,100 shares $13,902.00 -14.7%0.3%0.5 $0.42 11/15/202238,800 shares $17,479.40 -38.1%0.3%0.5 $0.45 10/31/202262,700 shares $36,052.50 -35.6%0.5%0.8 $0.58 10/15/202297,300 shares $54,244.75 +19.2%0.7%1.1 $0.56 9/30/202281,600 shares $46,618.08 -6.5%0.6%0.9 $0.57 9/15/202287,300 shares $64,785.33 +46.7%0.7%0.8 $0.74 8/31/202259,500 shares $41,667.85 -31.6%0.4%0.5 $0.70 8/15/202287,000 shares $66,468.00 +0.8%0.7%0.5 $0.76 7/31/202286,300 shares $61,713.13 +13.1%0.6%0.3 $0.72 7/15/202276,300 shares $53,959.44 -39.4%0.6%0.2 $0.71 6/30/2022125,900 shares $88,394.39 -48.9%1.0%0 $0.70 6/15/2022246,400 shares $168,118.72 -33.2%1.9%0.1 $0.68 5/31/2022368,700 shares $267,270.63 +102.8%2.8%0.1 $0.72 5/15/2022181,800 shares $128,623.50 -23.7%1.4%0.1 $0.71 4/30/2022238,100 shares $200,004.00 -78.7%1.8%0.1 $0.84 4/15/20221,120,000 shares $1.33 million +462.3%8.6%0.3 $1.19 3/31/2022199,200 shares $176,690.40 +159.7%1.5%0.1 $0.89 3/15/202276,700 shares $61,360.00 +50.7%0.6%0.1 $0.80 2/28/202250,900 shares $41,229.00 -27.3%0.4%0.1 $0.81 2/15/202270,000 shares $60,284.00 -56.8%0.5%0.1 $0.86 1/31/2022162,000 shares $141,750.00 -80.7%1.2%0.3 $0.88 1/15/2022840,300 shares $742,825.20 +155.9%6.3%1.4 $0.88 12/31/2021328,400 shares $328,400.00 -12.5%2.5%1.8 $1.00 12/15/2021375,100 shares $420,112.00 -18.0%2.8%2.1 $1.12 11/30/2021457,600 shares $617,760.00 +6.7%3.4%1.2 $1.35 11/15/2021429,000 shares $652,080.00 -2.0%3.2%1.1 $1.52 10/29/2021437,600 shares $735,168.00 -3.2%3.3%1.1 $1.68 10/15/2021452,000 shares $754,840.00 -9.3%3.4%1 $1.67 9/30/2021498,500 shares $1.01 million -46.7%3.7%1 $2.03 9/15/2021934,600 shares $1.84 million -11.8%7.0%1.9 $1.97 8/31/20211,060,000 shares $2.20 million -7.0%8.0%3.2 $2.08 8/13/20211,140,000 shares $1.96 million -12.3%8.6%2.8 $1.72 7/30/20211,300,000 shares $2.34 million +14.0%9.8%2.4 $1.80 7/15/20211,140,000 shares $2.17 million +8.6%8.6%1.3 $1.90Trump Treasure April 19 (Ad)Thanks to President Trump… A $900 investment across5 specific cryptos… Could gain 12,000% so quickly that, just 12 months later…If I’m right about this (like I was before) a modest $900 investment… 6/30/20211,050,000 shares $2.37 million -7.9%7.9%1.3 $2.26 6/15/20211,140,000 shares $2.58 million -26.5%8.6%1.3 $2.26 5/28/20211,550,000 shares $3.44 million +16.5%11.6%1.7 $2.22 5/14/20211,330,000 shares $2.49 million +100.9%10.0%1.3 $1.87 4/30/2021662,200 shares $1.55 million +5.5%5.0%0.4 $2.34 4/15/2021627,900 shares $1.52 million +17.4%4.7%0.5 $2.42 3/31/2021535,000 shares $1.45 million +22.7%4.0%0.4 $2.71 3/15/2021436,000 shares $1.37 million +41.6%3.3%0.3 $3.15 2/26/2021308,000 shares $951,720.00 -64.4%2.4%0.2 $3.09 2/12/2021864,200 shares $3.12 million -33.0%8.5%0.7 $3.61 1/29/20211,290,000 shares $3.99 million +152.3%12.7%1.7 $3.09 1/15/2021511,400 shares $1.53 million -6.8%8.9%0.8 $2.99 12/31/2020548,900 shares $1.49 million +6.2%9.5%0.9 $2.71 12/15/2020517,000 shares $1.35 million +497.0%9.0%1 $2.61 11/30/202086,600 shares $199,180.00 -50.3%1.5%0.2 $2.30 11/15/2020174,100 shares $386,502.00 +100.1%3.0%0.4 $2.22 10/30/202087,000 shares $185,310.00 +564.1%1.5%0.2 $2.13 10/15/202013,100 shares $28,165.00 +10.1%0.2%0 $2.15 9/30/202011,900 shares $25,466.00 -24.2%0.2%0 $2.14 9/15/202015,700 shares $32,813.00 -80.4%0.3%0 $2.09 8/31/202080,000 shares $184,800.00 -36.5%1.4%0.2 $2.31 8/14/2020126,000 shares $304,920.00 +123.0%2.2%0.1 $2.42 7/31/202056,500 shares $140,120.00 -43.2%1.0%0 $2.48 7/15/202099,500 shares $227,855.00 -8.9%1.7%0.1 $2.29 6/30/2020109,200 shares $239,148.00 -51.2%2.4%0.1 $2.19 6/15/2020223,800 shares $555,024.00 +14.1%4.9%0.2 $2.48 5/29/2020196,100 shares $598,105.00 -4.3%4.3%0.1 $3.05 5/15/2020204,800 shares $440,320.00 +240.2%4.5%0.5 $2.15 4/30/202060,200 shares $113,778.00 +554.4%1.3%0.1 $1.89 PHIO Short Interest - Frequently Asked Questions What is Phio Pharmaceuticals' current short interest? Short interest is the volume of Phio Pharmaceuticals shares that have been sold short but have not yet been covered or closed out. As of March 31st, investors have sold 78,700 shares of PHIO short. 1.86% of Phio Pharmaceuticals' shares are currently sold short. Learn More on Phio Pharmaceuticals' current short interest. Which institutional investors are shorting Phio Pharmaceuticals? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Phio Pharmaceuticals: Concourse Financial Group Securities Inc.. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Phio Pharmaceuticals? 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. 1.86% of Phio Pharmaceuticals' floating shares are currently sold short. Is Phio Pharmaceuticals' short interest increasing or decreasing? Phio Pharmaceuticals saw a increase in short interest in March. As of March 31st, there was short interest totaling 78,700 shares, an increase of 14.2% from the previous total of 68,900 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 Phio Pharmaceuticals' float size? Phio Pharmaceuticals currently has issued a total of 4,778,000 shares. Some of Phio Pharmaceuticals' 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. Phio Pharmaceuticals currently has a public float of 4,230,000 shares. How does Phio Pharmaceuticals' short interest compare to its competitors? 1.86% of Phio Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Phio Pharmaceuticals: ALX Oncology Holdings Inc. (18.53%), Werewolf Therapeutics, Inc. (5.92%), Barinthus Biotherapeutics plc (0.03%), Cadrenal Therapeutics, Inc. (4.10%), FibroGen, Inc. (4.73%), CytoMed Therapeutics Limited (1.95%), Daré Bioscience, Inc. (0.72%), Generation Bio Co. (3.69%), Pluri Inc. (0.21%), DURECT Co. (2.51%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.93 billion), iShares 20+ Year Treasury Bond ETF ($9.31 billion), Strategy Incorporated ($8.42 billion), Charter Communications, Inc. ($4.52 billion), Apollo Global Management, Inc. ($4.26 billion), Super Micro Computer, Inc. ($3.98 billion), Capital One Financial Co. ($3.79 billion), TC Energy Co. ($3.43 billion), AppLovin Co. ($2.91 billion), and Schlumberger Limited ($2.89 billion). View all of the most shorted stocks. What does it mean to sell short Phio Pharmaceuticals stock? Short selling PHIO is an investing strategy that aims to generate trading profit from Phio Pharmaceuticals as its price is falling. PHIO shares are trading up $0.03 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 Phio Pharmaceuticals? A short squeeze for Phio Pharmaceuticals 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 PHIO, which in turn drives the price of the stock up even further. How often is Phio Pharmaceuticals' 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 PHIO, twice per month. The most recent reporting period available is March, 31 2025. More Short Interest Resources from MarketBeat Related Companies ALX Oncology Short Squeeze Werewolf Therapeutics Short Squeeze Barinthus Biotherapeutics Short Squeeze Cadrenal Therapeutics Short Squeeze FibroGen Short Squeeze CytoMed Therapeutics Short Squeeze Daré Bioscience Short Squeeze Generation Bio Short Squeeze Pluri Short Squeeze DURECT 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:PHIO) was last updated on 4/18/2025 by MarketBeat.com Staff From Our PartnersClaim Your FREE Protection GuideIn the final days of his first term, Trump quietly left open an "off the books" wealth-protection loophole hid...American Alternative | SponsoredElon Reveals Why There Soon Won’t Be Any Money For Social SecurityElon Musk's Near-Death Experience Sparks Dire Warning for Americans After cheating death twice—once in a te...Colonial Metals | Sponsored100-year-old investment secret predicts what?!A 100-year-old indicator has quietly predicted nearly every major market meltdown — including the Dot-Com Bust...Weiss Ratings | SponsoredThe first casualty of the 2025 trade warThe headlines scream tariffs and export bans — but the real damage is happening in retirement portfolios. 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