InflaRx (IFRX) Short Interest Ratio & Short Volume $1.26 -0.21 (-14.29%) Closing price 04:00 PM EasternExtended Trading$1.27 +0.01 (+0.79%) As of 05:56 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 EventsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock InflaRx Short Interest DataInflaRx (IFRX) has a short interest of 453,200 shares, representing 0.81% of the float (the number of shares available for trading by the public). This marks a -50.12% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.9, indicating that it would take 0.9 days of the average trading volume of 466,229 shares to cover all short positions.Current Short Interest453,200 sharesPrevious Short Interest908,600 sharesChange Vs. Previous Month-50.12%Dollar Volume Sold Short$725.12 thousandShort Interest Ratio0.9 Days to CoverLast Record DateAugust 31, 2025Outstanding Shares67,130,000 sharesShort Percent of Float0.81%Today's Trading Volume1,046,518 sharesAverage Trading Volume466,229 sharesToday's Volume Vs. Average224% Short Selling InflaRx? Sign up to receive the latest short interest report for InflaRx 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. Message and data rates may apply. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartIFRX Short Interest Over TimeIFRX Days to Cover Over TimeIFRX Percentage of Float Shorted Over Time InflaRx Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 8/31/2025453,200 shares $725.12 thousand -50.1%0.8%0.9 $1.60 8/15/2025908,600 shares $784.03 thousand -3.8%N/A1.9 $0.86 7/31/2025944,200 shares $854.50 thousand -4.4%1.7%2 $0.91 7/15/2025987,500 shares $803.83 thousand -20.4%N/A2.1 $0.81 6/30/20251,240,000 shares $979.60 thousand +5.1%2.2%2.7 $0.79 6/15/20251,180,000 shares $925.12 thousand -7.1%2.1%2.5 $0.78 5/31/20251,270,000 shares $1.02 million +28.0%2.3%2.7 $0.81 5/15/2025992,100 shares $1.77 million -12.2%1.8%3.1 $1.78 4/30/20251,130,000 shares $1.92 million +22.3%N/A2.8 $1.70 4/15/2025924,200 shares $1.02 million +16.3%1.6%2.3 $1.10 Get the Latest News and Ratings for IFRX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for InflaRx and its competitors with MarketBeat's FREE daily newsletter. 3/31/2025794,600 shares $810.49 thousand +36.8%1.4%2 $1.02 3/15/2025581,000 shares $691.39 thousand +2.9%1.0%1.7 $1.19 2/28/2025564,700 shares $784.93 thousand +46.2%1.0%1.5 $1.39 2/15/2025386,300 shares $772.60 thousand -7.0%0.7%1 $2.00 1/31/2025415,200 shares $1.00 million -13.7%N/A1.4 $2.41 1/15/2025481,300 shares $1.21 million +93.4%N/A1.8 $2.52 12/31/2024248,900 shares $614.78 thousand +15.0%N/A0.9 $2.47 12/15/2024216,500 shares $510.94 thousand +37.9%N/A0.9 $2.36 11/30/2024157,000 shares $386.22 thousand -3.4%N/A0.8 $2.46 11/15/2024162,600 shares $317.07 thousand -3.2%N/A1 $1.95 10/31/2024168,000 shares $260.40 thousand -30.5%N/A2.3 $1.55 10/15/2024241,700 shares $357.72 thousand -8.1%N/A3.4 $1.48 9/30/2024262,900 shares $402.24 thousand +63.2%N/A4.4 $1.53 9/15/2024161,100 shares $230.37 thousand -26.6%N/A2.3 $1.43 8/31/2024219,400 shares $348.85 thousand -3.6%N/A3.1 $1.59 8/15/2024227,600 shares $307.26 thousand -9.2%N/A2.3 $1.35 7/31/2024250,600 shares $375.90 thousand +281.4%N/A1.9 $1.50 7/15/202465,700 shares $109.06 thousand -71.8%N/A0.5 $1.66 6/30/2024232,800 shares $405.07 thousand +151.1%N/A1.3 $1.74 6/15/202492,700 shares $144.61 thousand +233.5%N/A0.5 $1.56 5/31/202427,800 shares $39.75 thousand -61.3%N/A0.1 $1.43 5/15/202471,800 shares $100.52 thousand -45.4%N/A0.3 $1.40 4/30/2024131,500 shares $180.16 thousand +2.9%N/A0.6 $1.37 4/15/2024127,800 shares $177.64 thousand -67.2%N/A0.6 $1.39 3/31/2024389,100 shares $599.21 thousand +22.9%N/A1.7 $1.54 3/15/2024316,700 shares $500.39 thousand +7.8%N/A1.2 $1.58 2/29/2024293,900 shares $523.14 thousand -9.4%N/A1.1 $1.78 2/15/2024324,200 shares $499.27 thousand +5.6%N/A1.2 $1.54 1/31/2024307,000 shares $497.34 thousand -19.5%N/A1.2 $1.62 1/15/2024381,200 shares $659.48 thousand -18.2%N/A0.9 $1.73 12/31/2023466,200 shares $759.91 thousand -26.1%N/A1.1 $1.63 12/15/2023631,200 shares $826.87 thousand -7.9%N/A1.7 $1.31 11/30/2023685,300 shares $925.16 thousand +1.9%N/A2.1 $1.35 11/15/2023672,500 shares $975.13 thousand +298.9%N/A2.1 $1.45 10/31/2023168,600 shares $284.93 thousand +81.5%N/A0.5 $1.69 10/15/202392,900 shares $217.39 thousand -10.8%N/A0.5 $2.34 9/30/2023104,200 shares $310.52 thousand -46.1%N/A0.6 $2.98 9/15/2023193,300 shares $730.67 thousand +2.8%N/A1.1 $3.78 8/31/2023188,100 shares $743.00 thousand -33.1%N/A0.9 $3.95 8/15/2023281,300 shares $970.49 thousand -12.2%N/A1.2 $3.45 7/31/2023320,300 shares $1.34 million +5.3%N/A1.3 $4.19 7/15/2023304,100 shares $1.26 million -15.2%N/A1 $4.15 6/30/2023358,700 shares $1.60 million -44.7%N/A0.5 $4.46 6/15/2023648,500 shares $2.89 million -14.9%N/A0.3 $4.45 5/31/2023761,900 shares $3.19 million +8.0%N/A0.3 $4.19 5/15/2023705,400 shares $3.41 million -26.3%N/A0.3 $4.84 4/30/2023956,900 shares $4.66 million -49.4%2.5%0.4 $4.87 4/15/20231,890,000 shares $8.18 million +933.4%5.0%0.8 $4.33 3/31/2023182,900 shares $354.83 thousand -10.3%0.5%0.1 $1.94 3/15/2023203,900 shares $364.98 thousand -12.5%0.5%2.1 $1.79 2/28/2023233,000 shares $450.86 thousand -2.2%0.6%2.3 $1.94 2/15/2023238,200 shares $521.66 thousand -10.6%0.6%2.3 $2.19 1/31/2023266,400 shares $578.09 thousand -12.4%0.7%2.5 $2.17 1/15/2023304,100 shares $799.78 thousand -12.6%0.8%2.9 $2.63 12/30/2022348,000 shares $1.08 million -1.7%0.9%3.3 $3.10 12/15/2022354,100 shares $789.64 thousand -14.8%0.9%3.5 $2.23 11/30/2022415,800 shares $1.08 million -0.5%1.1%4.5 $2.60 11/15/2022417,900 shares $1.07 million +2.1%1.1%4.3 $2.57 10/31/2022409,200 shares $1.06 million -4.1%1.1%3.5 $2.60 10/15/2022426,800 shares $1.02 million -0.4%1.1%1.2 $2.39 9/30/2022428,700 shares $1.13 million +1.4%1.1%1.2 $2.64 9/15/2022422,800 shares $1.18 million -5.4%1.1%0.7 $2.78 8/31/2022447,100 shares $988.09 thousand +6.9%1.2%0.8 $2.21 8/15/2022418,300 shares $1.13 million -52.4%1.1%0.7 $2.71 7/31/2022878,400 shares $2.41 million +7.9%2.3%1.6 $2.74 7/15/2022813,800 shares $1.10 million -6.7%2.2%1.8 $1.35 6/30/2022872,400 shares $1.26 million +511.4%2.3%2.5 $1.45 6/15/2022142,700 shares $181.23 thousand +9.0%0.4%0.8 $1.27 5/31/2022130,900 shares $208.13 thousand +35.8%0.4%0.6 $1.59 5/15/202296,400 shares $140.74 thousand -32.0%0.3%0.4 $1.46 4/30/2022141,700 shares $239.47 thousand -30.9%0.4%0.6 $1.69 4/15/2022205,100 shares $369.18 thousand -43.2%0.6%0.8 $1.80 3/31/2022361,000 shares $660.63 thousand -30.6%N/A1.3 $1.83 3/15/2022520,500 shares $1.09 million -18.8%1.5%2.2 $2.09 2/28/2022640,600 shares $1.70 million -12.6%1.8%2.8 $2.66 2/15/2022732,500 shares $2.53 million -8.3%2.1%2.4 $3.45 1/31/2022798,400 shares $2.85 million -11.1%2.2%1.6 $3.57 1/15/2022898,500 shares $3.82 million -4.7%N/A0 $4.25 12/31/2021943,100 shares $4.49 million -17.3%2.6%0.3 $4.76 12/15/20211,140,000 shares $4.71 million +1.8%3.1%0.4 $4.13 11/30/20211,120,000 shares $5.61 million +68.0%3.1%0.4 $5.01 11/15/2021666,800 shares $3.27 million -23.2%1.8%0.2 $4.90 10/29/2021868,200 shares $3.68 million +116.0%2.4%0.3 $4.24 10/15/2021401,900 shares $992.69 thousand +27.4%1.1%0.7 $2.47 9/30/2021315,500 shares $817.15 thousand -13.4%0.9%1.1 $2.59 9/15/2021364,500 shares $1.01 million +212.1%1.0%1.5 $2.76 8/31/2021116,800 shares $300.18 thousand -12.9%0.3%0.5 $2.57 8/13/2021134,100 shares $323.18 thousand +64.3%0.4%0.8 $2.41 7/30/202181,600 shares $212.16 thousand +91.6%0.2%0.4 $2.60 7/15/202142,600 shares $109.48 thousand +41.1%0.1%0.2 $2.57 6/30/202130,200 shares $89.69 thousand -14.5%0.1%0.1 $2.97 6/15/202135,300 shares $110.49 thousand -26.3%0.1%0.1 $3.13 5/28/202147,900 shares $146.10 thousand -69.8%0.1%0.2 $3.05 5/14/2021158,600 shares $431.39 thousand +100.5%N/A0.4 $2.72 4/30/202179,100 shares $295.83 thousand -86.8%N/A0.2 $3.74 4/15/2021598,100 shares $2.26 million +12.0%3.1%1.6 $3.78 3/31/2021533,900 shares $2.02 million +3.6%2.7%1.3 $3.79 3/15/2021515,200 shares $2.47 million +19.8%2.7%1.3 $4.79 2/26/2021430,000 shares $1.93 million -8.0%2.2%1 $4.49 2/12/2021467,200 shares $2.70 million +1.3%2.4%1.4 $5.77 1/29/2021461,200 shares $2.56 million +5.2%2.4%1.5 $5.54 1/15/2021438,600 shares $2.64 million +6.1%2.3%1.5 $6.03 12/31/2020413,300 shares $2.03 million -37.7%2.1%1.5 $4.91 12/15/2020663,100 shares $3.30 million +34.8%3.4%1.9 $4.98 11/30/2020492,100 shares $1.96 million +2.4%2.5%1.4 $3.98 11/15/2020480,800 shares $2.02 million -4.4%2.5%1.4 $4.20 10/30/2020503,100 shares $2.07 million -15.1%2.6%1.4 $4.12 10/15/2020592,600 shares $2.99 million +27.4%3.1%1.4 $5.05 9/30/2020465,300 shares $1.98 million +20.1%2.4%0.7 $4.26 9/15/2020387,500 shares $1.86 million -5.6%1.9%0.7 $4.80 IFRX Short Interest - Frequently Asked Questions What is InflaRx's current short interest? Short interest is the volume of InflaRx shares that have been sold short but have not yet been covered or closed out. As of August 31st, investors have sold 453,200 shares of IFRX short. 0.81% of InflaRx's shares are currently sold short. Learn More on InflaRx's current short interest. What is a good short interest ratio for InflaRx? 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. IFRX shares currently have a short interest ratio of 1.0. Learn More on InflaRx's short interest ratio. Which institutional investors are shorting InflaRx? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of InflaRx: Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for InflaRx? 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. 0.81% of InflaRx's floating shares are currently sold short. Is InflaRx's short interest increasing or decreasing? InflaRx saw a decline in short interest in August. As of August 31st, there was short interest totaling 453,200 shares, a decline of 50.1% from the previous total of 908,600 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 InflaRx's short interest compare to its competitors? 0.81% of InflaRx's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to InflaRx: Replimune Group, Inc. (25.10%), Prime Medicine, Inc. (19.46%), Cullinan Therapeutics, Inc. (17.20%), Kodiak Sciences Inc. (5.98%), COMPASS Pathways PLC Sponsored ADR (8.44%), Prothena Corporation plc (9.34%), iTeos Therapeutics, Inc. (4.66%), Solid Biosciences Inc. (16.89%), Olema Pharmaceuticals, Inc. (14.65%), CryoPort, Inc. (5.71%), 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 InflaRx stock? Short selling IFRX is an investing strategy that aims to generate trading profit from InflaRx as its price is falling. IFRX shares are trading down $0.11 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 InflaRx? A short squeeze for InflaRx 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 IFRX, which in turn drives the price of the stock up even further. How often is InflaRx'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 IFRX, twice per month. The most recent reporting period available is August, 31 2025. More Short Interest Resources from MarketBeat Related Companies Replimune Group Short Squeeze Prime Medicine Short Squeeze Cullinan Therapeutics Short Squeeze Kodiak Sciences Short Squeeze COMPASS Pathways Short Squeeze Prothena Short Squeeze iTeos Therapeutics Short Squeeze Solid Biosciences Short Squeeze Olema Pharmaceuticals Short Squeeze CryoPort 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:IFRX) was last updated on 9/12/2025 by MarketBeat.com Staff From Our PartnersTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | SponsoredStunning new initiative unfolding in the White House?what I just learned about what’s unfolding in the White House is truly stunning… And you need to see it for...Paradigm Press | SponsoredForget NVDA. 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