eFFECTOR Therapeutics (EFTR) Short Interest Ratio & Short Volume $0.0002 0.00 (0.00%) As of 10:33 AM Eastern Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsEarningsInsider TradesOwnershipSEC FilingsTrendsBuy This Stock eFFECTOR Therapeutics Short Interest DataeFFECTOR Therapeutics (EFTR) has a short interest of 687,000 shares, representing 16.84% of the float (the number of shares available for trading by the public). This marks a 650.00% increase in short interest from the previous month. The short interest ratio (days to cover) is 1.1, indicating that it would take 1.1 days of the average trading volume of 2,367 shares to cover all short positions.Current Short Interest687,000 sharesPrevious Short Interest91,600 sharesChange Vs. Previous Month+650.00%Dollar Volume Sold Short$199,298.70Short Interest Ratio1.1 Days to CoverLast Record DateJune 30, 2024Outstanding Shares4,704,000 sharesFloat Size4,080,000 sharesShort Percent of Float16.84%Today's Trading Volume2,650 sharesAverage Trading Volume2,367 sharesToday's Volume Vs. Average112% Short Selling eFFECTOR Therapeutics? Sign up to receive the latest short interest report for eFFECTOR Therapeutics and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartEFTR Short Interest Over TimeEFTR Days to Cover Over TimeEFTR Percentage of Float Shorted Over Time eFFECTOR 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 6/30/2024687,000 shares $199,298.70 +650.0%16.8%1.1 $0.29 6/15/202491,600 shares $114,500.00 -3.3%2.3%0.1 $1.25 5/31/202494,700 shares $151,520.00 -14.5%2.4%0.3 $1.60 5/15/2024110,700 shares $219,186.00 -13.7%2.9%0.3 $1.98 4/30/2024128,300 shares $288,675.00 -47.4%3.1%0.3 $2.25 4/15/2024244,000 shares $470,920.00 -29.3%7.2%0.7 $1.93 3/31/2024345,200 shares $4.97 million +8.5%10.7%1 $14.39 3/15/2024318,100 shares $3.52 million +43.1%15.0%2.2 $11.06 2/29/2024222,300 shares $3.21 million +113.8%10.5%1.6 $14.44 2/15/2024104,000 shares $1.21 million -4.4%4.9%0.9 $11.66 Get the Latest News and Ratings for EFTR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for eFFECTOR Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 1/31/2024108,800 shares $1.25 million -12.6%5.9%1 $11.47 1/15/2024124,500 shares $1.33 million -85.0%6.7%1.3 $10.69 12/31/2023827,900 shares $386,960.46 -21.9%1.8%0.4 $0.47 12/15/20231,060,000 shares $398,348.00 +1.0%2.3%0.6 $0.38 11/30/20231,050,000 shares $556,920.00 +141.9%2.3%0.8 $0.53 11/15/2023434,000 shares $253,890.00 +72.8%1.0%0.6 $0.59 10/31/2023251,100 shares $135,594.00 -50.5%0.7%0.6 $0.54 10/15/2023507,600 shares $291,057.84 +133.9%1.3%1.1 $0.57 9/30/2023217,000 shares $130,178.30 -74.0%0.6%0.5 $0.60 9/15/2023834,100 shares $508,801.00 -8.5%2.2%1.4 $0.61 8/31/2023912,000 shares $663,936.00 +36.7%2.4%1 $0.73 8/15/2023667,400 shares $453,231.34 -38.8%1.7%0.3 $0.68 7/31/20231,090,000 shares $881,156.00 -15.5%3.6%0.5 $0.81 7/15/20231,290,000 shares $990,720.00 +219.3%4.2%0.6 $0.77 6/30/2023404,000 shares $335,400.80 +91.4%1.4%0.2 $0.83 6/15/2023211,100 shares $197,378.50 -83.0%0.8%0.1 $0.94 5/31/20231,240,000 shares $1.15 million +1,506.2%4.6%0.8 $0.93 5/15/202377,200 shares $52,874.28 -12.6%0.4%0.4 $0.68 4/30/202388,300 shares $41,501.00 -32.5%0.6%0.5 $0.47 4/15/2023130,800 shares $50,358.00 +236.3%0.7%0.7 $0.39 3/31/202338,900 shares $13,720.03 -45.2%0.1%0.2 $0.35 3/15/202371,000 shares $28,400.00 +110.7%0.2%0.2 $0.40 2/28/202333,700 shares $16,789.34 -72.2%0.3%0.1 $0.50 2/15/2023121,300 shares $72,780.00 -9.1%0.9%0.4 $0.60 1/31/2023133,400 shares $68,447.54 -29.3%1.0%0.4 $0.51 1/15/2023188,800 shares $84,960.00 +56.4%1.4%0.7 $0.45 12/30/2022120,700 shares $51,611.32 +148.9%0.9%0.5 $0.43 12/15/202248,500 shares $19,400.00 +41.4%0.4%0.5 $0.40 11/30/202234,300 shares $14,399.14 -49.9%0.3%0.3 $0.42 11/15/202268,400 shares $37,695.24 -51.7%0.5%0.5 $0.55Here’s How to Claim Your Stake in Elon’s Private Company, xAI (Ad)Even though xAI is a private company, tech legend and angel investor Jeff Brown found a way for everyday folks like you… To partner with Elon on what he believes will be the biggest AI project of the century… Starting with as little as $500.Click here to see how you could take a stake in Elon’s private company… 10/31/2022141,600 shares $86,758.32 +13.2%1.1%0.1 $0.61 10/15/2022125,100 shares $73,296.09 -42.5%1.0%0.1 $0.59 9/30/2022217,500 shares $124,431.75 +55.0%1.7%0.2 $0.57 9/15/2022140,300 shares $83,071.63 -25.5%1.1%0.1 $0.59 8/31/2022188,300 shares $114,768.85 +21.5%1.4%0.2 $0.61 8/15/2022155,000 shares $111,026.50 +104.8%1.3%0.1 $0.72 7/31/202275,700 shares $61,301.86 -19.5%1.0%0.1 $0.81 7/15/202294,000 shares $105,280.00 -30.4%1.2%1.5 $1.12 6/30/2022135,000 shares $191,700.00 -12.0%1.8%3.1 $1.42 6/15/2022153,400 shares $225,498.00 -13.2%2.0%4 $1.47 5/31/2022176,700 shares $381,672.00 +0.8%2.3%5.2 $2.16 5/15/2022175,300 shares $315,540.00 -26.2%2.3%6.7 $1.80 4/30/2022237,400 shares $790,542.00 -1.7%3.2%8.1 $3.33 4/15/2022241,600 shares $850,432.00 -3.4%3.2%7.9 $3.52 3/31/2022250,000 shares $1.00 million -6.6%N/A7.7 $4.01 3/15/2022267,700 shares $1.07 million -11.7%3.8%4.5 $4.00 2/28/2022303,100 shares $1.41 million -6.2%4.6%3.2 $4.65 2/15/2022323,200 shares $1.49 million -2.4%N/A3 $4.61 1/31/2022331,300 shares $1.87 million -5.3%5.1%2.7 $5.65 1/15/2022350,000 shares $2.54 million -5.9%N/A2.7 $7.25 12/31/2021372,100 shares $3.08 million No Change5.0%1.9 $8.28 EFTR Short Interest - Frequently Asked Questions What is eFFECTOR Therapeutics' current short interest? Short interest is the volume of eFFECTOR Therapeutics shares that have been sold short but have not yet been covered or closed out. As of June 30th, investors have sold 687,000 shares of EFTR short. 16.84% of eFFECTOR Therapeutics' shares are currently sold short. Learn More on eFFECTOR Therapeutics' current short interest. What is a good short interest ratio for eFFECTOR Therapeutics? 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. EFTR shares currently have a short interest ratio of 1.0. Learn More on eFFECTOR Therapeutics's short interest ratio. What is a good short interest percentage for eFFECTOR 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. 16.84% of eFFECTOR Therapeutics' floating shares are currently sold short. Is eFFECTOR Therapeutics' short interest increasing or decreasing? eFFECTOR Therapeutics saw a increase in short interest in June. As of June 30th, there was short interest totaling 687,000 shares, an increase of 650.0% from the previous total of 91,600 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. What is eFFECTOR Therapeutics' float size? eFFECTOR Therapeutics currently has issued a total of 4,704,000 shares. Some of eFFECTOR Therapeutics' 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. eFFECTOR Therapeutics currently has a public float of 4,080,000 shares. Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Charter Communications, Inc. ($3.71 billion), TC Energy Co. ($2.95 billion), Moderna, Inc. ($2.63 billion), Royal Caribbean Cruises Ltd. ($2.53 billion), Paychex, Inc. ($2.03 billion), Cencora, Inc. ($2.03 billion), Tractor Supply ($1.91 billion), Rivian Automotive, Inc. ($1.78 billion), Chesapeake Energy Co. ($1.50 billion), and United Therapeutics Co. ($1.40 billion). View all of the most shorted stocks. What does it mean to sell short eFFECTOR Therapeutics stock? Short selling EFTR is an investing strategy that aims to generate trading profit from eFFECTOR Therapeutics as its price is falling. 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 eFFECTOR Therapeutics? A short squeeze for eFFECTOR 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 EFTR, which in turn drives the price of the stock up even further. How often is eFFECTOR 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 EFTR, twice per month. The most recent reporting period available is June, 30 2024. More Short Interest Resources from MarketBeat Related Companies ALVOW Short Interest Data BCTXW Short Interest Data CLNNW Short Interest Data ENGNW Short Interest Data FBIOP Short Interest Data IMTXW Short Interest Data JSPRW Short Interest Data LEXXW Short Interest Data LIXTW Short Interest Data NLSPW Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:EFTR) was last updated on 5/9/2025 by MarketBeat.com Staff From Our PartnersElon Warns “America Is Broke”. Trump’s Plan Inside.Elon Musk has avoided two major financial crises before. He pulled Tesla and SpaceX back from the brink of col...American Hartford Gold | SponsoredTrump wipes out trillions overnight…Is there anybody more powerful than Donald Trump right now? 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