Fuel Tech (FTEK) Short Interest Ratio & Short Volume $2.57 -0.08 (-3.02%) Closing price 08/1/2025 04:00 PM EasternExtended Trading$2.57 0.00 (0.00%) As of 08/1/2025 07:54 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 TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Fuel Tech Short Interest DataFuel Tech (FTEK) has a short interest of 657,500 shares, representing 2.78% of the float (the number of shares available for trading by the public). This marks a 20.69% increase in short interest from the previous month. The short interest ratio (days to cover) is 1.7, indicating that it would take 1.7 days of the average trading volume of 312,036 shares to cover all short positions.Current Short Interest657,500 sharesPrevious Short Interest544,800 sharesChange Vs. Previous Month+20.69%Dollar Volume Sold Short$1.63 millionShort Interest Ratio1.7 Days to CoverLast Record DateJuly 15, 2025Outstanding Shares30,777,000 sharesFloat Size23,670,000 sharesShort Percent of Float2.78%Today's Trading Volume157,754 sharesAverage Trading Volume312,036 sharesToday's Volume Vs. Average51% Short Selling Fuel Tech? Sign up to receive the latest short interest report for Fuel Tech and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartFTEK Short Interest Over TimeFTEK Days to Cover Over TimeFTEK Percentage of Float Shorted Over Time Fuel Tech Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 7/15/2025657,500 shares $1.63 million +20.7%2.8%1.7 $2.48 6/30/2025544,800 shares $1.37 million +658.8%2.3%1.6 $2.52 6/15/202571,800 shares $131.39 thousand -19.7%0.3%0.3 $1.83 5/31/202589,400 shares $150.19 thousand -19.5%0.4%0.5 $1.68 5/15/2025111,000 shares $119.33 thousand +18.1%0.5%0.7 $1.08 4/30/202594,000 shares $90.33 thousand +6.7%0.4%1.3 $0.96 4/15/202588,100 shares $86.11 thousand +10.3%0.4%1.1 $0.98 3/31/202579,900 shares $83.90 thousand +20.3%0.3%0.8 $1.05 3/15/202566,400 shares $65.07 thousand -10.0%0.3%0.6 $0.98 2/28/202573,800 shares $73.06 thousand -11.7%0.3%0.6 $0.99 Get the Latest News and Ratings for FTEK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Fuel Tech and its competitors with MarketBeat's FREE daily newsletter. 2/15/202583,600 shares $77.33 thousand -16.3%0.4%0.6 $0.93 1/31/202599,900 shares $98.40 thousand -23.5%0.4%0.7 $0.99 1/15/2025130,500 shares $129.47 thousand -8.1%0.6%0.9 $0.99 12/31/2024142,000 shares $149.10 thousand +127.9%0.6%1.2 $1.05 12/15/202462,300 shares $63.55 thousand -4.0%0.3%0.6 $1.02 11/30/202464,900 shares $69.44 thousand -33.4%0.3%0.6 $1.07 11/15/202497,500 shares $100.43 thousand -43.0%0.4%0.9 $1.03 10/31/2024170,900 shares $176.03 thousand -11.3%0.7%2.2 $1.03 10/15/2024192,600 shares $194.53 thousand -4.6%0.8%2.3 $1.01 9/30/2024201,800 shares $211.89 thousand -22.6%0.9%2.5 $1.05 9/15/2024260,600 shares $260.60 thousand -17.8%1.1%3.4 $1.00 8/31/2024317,100 shares $317.10 thousand +3.2%1.3%4.2 $1.00 8/15/2024307,400 shares $304.51 thousand +1.7%1.3%4.4 $0.99 7/31/2024302,400 shares $311.50 thousand -1.5%1.3%4.6 $1.03 7/15/2024307,000 shares $325.42 thousand +12.5%1.3%5.2 $1.06 6/30/2024273,000 shares $292.11 thousand +0.3%1.2%4.6 $1.07 6/15/2024272,300 shares $284.55 thousand -1.1%1.2%4.4 $1.05 5/31/2024275,400 shares $308.45 thousand -10.8%1.2%3.6 $1.12 5/15/2024308,900 shares $376.86 thousand -17.1%1.3%3.9 $1.22 4/30/2024372,400 shares $472.95 thousand -2.5%1.6%4.9 $1.27 4/15/2024381,800 shares $435.25 thousand -8.0%1.6%5.1 $1.14 3/31/2024415,100 shares $502.27 thousand -1.5%1.8%5.6 $1.21 3/15/2024421,300 shares $484.50 thousand +21.1%1.8%5.6 $1.15 2/29/2024348,000 shares $379.32 thousand -11.1%1.5%6.2 $1.09 2/15/2024391,300 shares $444.13 thousand -19.7%1.7%7.3 $1.14 1/31/2024487,500 shares $521.63 thousand +10.6%2.1%8.9 $1.07 1/15/2024440,900 shares $454.13 thousand -3.3%1.9%9.1 $1.03 12/31/2023455,800 shares $478.59 thousand -8.2%1.9%9.3 $1.05 12/15/2023496,500 shares $521.33 thousand +11.4%2.1%9 $1.05 11/30/2023445,800 shares $472.55 thousand -9.1%1.9%8.1 $1.06The $7 company helping Nvidia build the world’s first trillion-dollar robot … (Ad)Michael Robinson has been at the forefront of the technology market for over 40 years. Spotting some profitable trends in tech … well ahead of Wall Street. Like when he called Nvidia at a mere 80 cents a share. Or Bitcoin when it was trading for just $300. Throughout his illustrious career … Michael has given his followers almost 150 different chances to register triple-digit gains.Now he's identified his next potential winner. Click here to find out more. 11/15/2023490,200 shares $524.51 thousand +9.1%2.1%9.1 $1.07 10/31/2023449,300 shares $458.24 thousand No Change1.9%7.2 $1.02 10/15/2023449,300 shares $498.72 thousand -1.1%1.9%7.2 $1.11 9/30/2023454,400 shares $536.19 thousand -11.2%1.9%7.3 $1.18 9/15/2023511,400 shares $598.34 thousand +2.7%2.2%9.2 $1.17 8/31/2023498,200 shares $543.04 thousand -1.3%2.1%8.7 $1.09 8/15/2023504,600 shares $575.24 thousand -0.4%2.1%8 $1.14 7/31/2023506,600 shares $643.38 thousand +0.6%2.2%7.8 $1.27 7/15/2023503,400 shares $639.32 thousand +8.7%2.1%2.1 $1.27 6/30/2023463,300 shares $613.87 thousand -7.7%2.0%2 $1.33 6/15/2023501,800 shares $687.47 thousand +3.7%2.1%2.1 $1.37 5/31/2023484,000 shares $658.24 thousand -10.7%2.1%2.1 $1.36 5/15/2023542,200 shares $699.44 thousand -13.1%2.3%2.3 $1.29 4/30/2023624,000 shares $780 thousand +16.7%2.7%2.7 $1.25 4/15/2023534,500 shares $656.85 thousand +0.2%2.3%2.9 $1.23 3/31/2023533,600 shares $683.01 thousand +10.3%2.3%9.1 $1.28 3/15/2023483,600 shares $589.99 thousand -10.2%2.1%6.2 $1.22 2/28/2023538,500 shares $721.59 thousand -0.6%2.3%6 $1.34 2/15/2023541,600 shares $769.07 thousand -7.0%2.0%6.5 $1.42 1/31/2023582,100 shares $919.72 thousand -0.1%2.1%6.7 $1.58 1/15/2023582,600 shares $990.42 thousand -2.2%2.1%6.9 $1.70 12/30/2022595,400 shares $759.14 thousand +3.6%2.2%7.8 $1.28 12/15/2022574,600 shares $861.90 thousand +0.7%2.1%9.3 $1.50 11/30/2022570,500 shares $707.42 thousand -1.0%2.1%9.7 $1.24 11/15/2022576,200 shares $760.58 thousand -3.2%2.1%11.1 $1.32 10/31/2022595,100 shares $696.27 thousand -5.4%2.2%9.7 $1.17 10/15/2022629,100 shares $729.76 thousand -7.7%2.3%8.5 $1.16 9/30/2022681,700 shares $797.59 thousand +5.7%2.5%9 $1.17 9/15/2022645,100 shares $896.69 thousand -7.8%2.8%7 $1.39 8/31/2022699,600 shares $986.44 thousand +27.6%3.0%7.4 $1.41 8/15/2022548,400 shares $762.28 thousand -13.1%2.4%5.8 $1.39 7/31/2022630,900 shares $820.17 thousand -11.1%2.7%6.8 $1.30 7/15/2022709,900 shares $858.98 thousand -6.5%3.1%8 $1.21 6/30/2022759,000 shares $941.16 thousand +9.6%3.3%7.8 $1.24 6/15/2022692,500 shares $886.40 thousand -19.1%3.0%6.4 $1.28 5/31/2022856,200 shares $1.10 million -13.0%3.7%6.3 $1.29 5/15/2022984,400 shares $1.19 million +1.7%4.2%6.1 $1.21 4/30/2022968,000 shares $1.25 million -8.7%4.2%5.8 $1.29 4/15/20221,060,000 shares $1.54 million -17.8%4.6%5.8 $1.45 3/31/20221,290,000 shares $1.87 million +22.9%N/A6.5 $1.45 3/15/20221,050,000 shares $1.42 million -7.1%4.5%4.3 $1.35 2/28/20221,130,000 shares $1.41 million +24.8%4.9%4.3 $1.25 2/15/2022905,600 shares $1.15 million +6.4%3.9%3.1 $1.27 1/31/2022851,000 shares $1.01 million -26.0%3.7%1.9 $1.19 1/15/20221,150,000 shares $1.54 million -3.4%N/A2 $1.34 12/31/20211,190,000 shares $1.67 million -17.9%5.1%0.9 $1.40 12/15/20211,450,000 shares $2.13 million +38.1%6.2%1 $1.47 11/30/20211,050,000 shares $1.72 million -45.0%4.5%0.7 $1.64 11/15/20211,910,000 shares $4.09 million +3.8%8.2%1.3 $2.14 10/29/20211,840,000 shares $3.79 million +134.2%7.9%1.4 $2.06The $7 company helping Nvidia build the world’s first trillion-dollar robot … (Ad)Michael Robinson has been at the forefront of the technology market for over 40 years. Spotting some profitable trends in tech … well ahead of Wall Street. Like when he called Nvidia at a mere 80 cents a share. Or Bitcoin when it was trading for just $300. Throughout his illustrious career … Michael has given his followers almost 150 different chances to register triple-digit gains.Now he's identified his next potential winner. Click here to find out more. 10/15/2021785,700 shares $1.35 million -15.1%3.4%0.6 $1.72 9/30/2021925,500 shares $1.61 million -11.0%4.0%1.9 $1.74 9/15/20211,040,000 shares $1.86 million +4.0%4.5%2.2 $1.79 8/31/20211,000,000 shares $1.87 million -20.0%4.3%1.9 $1.87 8/13/20211,250,000 shares $2.29 million -2.3%5.4%1.5 $1.83 7/30/20211,280,000 shares $2.48 million -3.8%5.5%0.8 $1.94 7/15/20211,330,000 shares $2.62 million -3.6%5.7%0.9 $1.97 6/30/20211,380,000 shares $3.24 million +32.7%5.9%0.9 $2.35 6/15/20211,040,000 shares $2.44 million +205.3%4.5%0.7 $2.35 5/28/2021340,600 shares $711.85 thousand -30.6%1.5%0.2 $2.09 5/14/2021491,000 shares $1.09 million -0.1%2.1%0.4 $2.21 4/30/2021491,400 shares $1.14 million -40.4%2.1%0.7 $2.31 4/15/2021823,800 shares $2.05 million -60.6%3.6%0.9 $2.49 3/31/20212,090,000 shares $6.33 million -4.6%9.1%1.7 $3.03 3/15/20212,190,000 shares $8.28 million -4.4%9.5%1.5 $3.78 2/26/20212,290,000 shares $8.40 million +177.7%10.6%1.4 $3.67 2/12/2021824,700 shares $4.21 million -1.4%4.7%0.2 $5.10 1/29/2021836,700 shares $4.33 million +12.0%4.8%0.1 $5.18 1/15/2021747,200 shares $4.33 million +12.3%4.2%0.1 $5.80 12/31/2020665,100 shares $2.81 million -22.8%3.8%0.1 $4.23 12/15/2020861,200 shares $3.07 million -69.1%5.0%0.1 $3.57 11/30/20202,790,000 shares $14.31 million +34.8%16.2%0.4 $5.13 11/15/20202,070,000 shares $2.13 million +3,650.0%12.1%0.4 $1.03 10/30/202055,200 shares $38.75 thousand -4.5%0.3%0.5 $0.70 10/15/202057,800 shares $49.13 thousand -59.4%0.3%0.5 $0.85 9/30/2020142,300 shares $119.75 thousand +74.4%0.8%1 $0.84 9/15/202081,600 shares $55.49 thousand -24.9%0.5%0.1 $0.68 8/31/2020108,700 shares $86.26 thousand +127.9%0.6%0.2 $0.79 8/14/202047,700 shares $40.79 thousand -25.5%0.3%0.1 $0.86 FTEK Short Interest - Frequently Asked Questions What is Fuel Tech's current short interest? Short interest is the volume of Fuel Tech shares that have been sold short but have not yet been covered or closed out. As of July 15th, investors have sold 657,500 shares of FTEK short. 2.78% of Fuel Tech's shares are currently sold short. Learn More on Fuel Tech's current short interest. What is a good short interest ratio for Fuel Tech? 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. FTEK shares currently have a short interest ratio of 2.0. Learn More on Fuel Tech's short interest ratio. What is a good short interest percentage for Fuel Tech? 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. 2.78% of Fuel Tech's floating shares are currently sold short. Is Fuel Tech's short interest increasing or decreasing? Fuel Tech saw a increase in short interest in the month of July. As of July 15th, there was short interest totaling 657,500 shares, an increase of 20.7% from the previous total of 544,800 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 Fuel Tech's float size? Fuel Tech currently has issued a total of 30,777,000 shares. Some of Fuel Tech'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. Fuel Tech currently has a public float of 23,670,000 shares. How does Fuel Tech's short interest compare to its competitors? 2.78% of Fuel Tech's shares are currently sold short. Here is how the short interest of companies in the industry of "machinery" compare to Fuel Tech: A2Z Cust2Mate Solutions Corp. (2.58%), AirJoule Technologies Corporation (5.21%), Gencor Industries, Inc. (0.58%), Richtech Robotics Inc. (22.61%), Perma-Pipe International Holdings, Inc. (1.00%), Taylor Devices, Inc. (2.77%), Drilling Tools International Corp. (1.69%), Planet Image International Limited (2.43%), Westport Fuel Systems Inc. (4.62%), Amtech Systems, Inc. (0.69%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Coinbase Global, Inc. ($5.11 billion), Charter Communications, Inc. ($4.76 billion), Reddit Inc. ($2.84 billion), SoFi Technologies, Inc. ($2.79 billion), Seagate Technology Holdings PLC ($2.79 billion), Live Nation Entertainment, Inc. ($2.67 billion), Rocket Lab Corporation ($2.49 billion), AST SpaceMobile, Inc. ($2.12 billion), Moderna, Inc. ($2.09 billion), and Omnicom Group Inc. ($2.04 billion). View all of the most shorted stocks. What does it mean to sell short Fuel Tech stock? Short selling FTEK is an investing strategy that aims to generate trading profit from Fuel Tech as its price is falling. FTEK shares are trading down $0.08 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 Fuel Tech? A short squeeze for Fuel Tech 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 FTEK, which in turn drives the price of the stock up even further. How often is Fuel Tech'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 FTEK, twice per month. The most recent reporting period available is July, 15 2025. More Short Interest Resources from MarketBeat Related Companies AZ Short Interest AIRJ Short Interest GENC Short Interest RR Short Interest PPIH Short Interest TAYD Short Interest DTI Short Interest YIBO Short Interest WPRT Short Interest ASYS Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:FTEK) was last updated on 8/2/2025 by MarketBeat.com Staff From Our Partners379 passengers walked away from thisWhy Elon Musk Just Invested $51 Million Into Brand New “Miracle Metal” Developed by MIT ScientistsTrue Market Insiders | Sponsored$100 Trillion “AI Metal” Found in American Ghost TownJeff Brown recently traveled to a ghost town in the middle of an American desert… To investigate what could...Brownstone Research | SponsoredMarket Crash Warning: How to Protect Your Wealth Before August 12thChina tariffs hit August 12—and experts warn a market meltdown may follow. 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