Tecogen (TGEN) Short Interest Ratio & Short Volume $5.74 +0.22 (+3.99%) As of 05/22/2026 04:10 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartHeadlinesOwnershipSEC FilingsBuy This Stock Tecogen Short Interest OverviewAs of October 15, 2025, Tecogen (TGEN) had a short interest of 1.22 million shares sold short, representing 7.14% of the public float. This marks a -10.29% decrease in short interest since the prior report. The short interest ratio (days to cover) is 1.4, meaning it would take 1.4 days of the average trading volume of 532,865 shares to cover all short positions.Current Short Interest1,220,000 sharesPrevious Short Interest1,360,000 sharesChange Vs. Previous Month-10.29%Dollar Volume Sold Short$14.73 millionShort Interest Ratio1.4 Days to CoverLast Record DateOctober 15, 2025Outstanding Shares29,918,000 sharesFloat Size17,080,000 sharesShort Percent of Float7.14%Today's Trading Volume391,423 sharesAverage Trading Volume532,865 sharesToday's Volume Vs. Average73% Short Selling Tecogen? Sign up to receive the latest short interest report for Tecogen and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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 ChartTGEN Short Interest Over TimeTGEN Days to Cover Over TimeTGEN Percentage of Float Shorted Over Time Tecogen Tesla Short Interest History & Recent Changes ExportReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 10/15/20251,220,000 shares $14.73 million -10.3%7.1%1.4 $12.07 9/30/20251,360,000 shares $11.98 million +13.3%8.0%1.5 $8.81 9/15/20251,200,000 shares $8.82 million +7.1%7.0%1.4 $7.35 8/31/20251,120,000 shares $8.56 million No Change6.6%1.3 $7.64 4/30/202522,000 shares $54.34 thousand +1,000.0%N/A0.1 $2.47 4/15/20252,000 shares $3.76 thousand -4.8%0.0%0 $1.88 3/31/20252,100 shares $4.70 thousand +31.3%0.0%0 $2.24 3/15/20251,600 shares $3.44 thousand -76.5%0.0%0 $2.15 2/28/20256,800 shares $11.83 thousand -76.7%0.0%0 $1.74 2/15/202529,200 shares $68.33 thousand +1,068.0%0.1%0.1 $2.34 Get the Latest News and Ratings for TGEN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Tecogen and its competitors with MarketBeat's FREE daily newsletter. 1/31/20252,500 shares $6.03 thousand -70.6%N/A0 $2.41 1/15/20258,500 shares $22.27 thousand +553.9%N/A0 $2.62 12/31/20241,300 shares $1.90 thousand -88.9%N/A0 $1.47 12/15/202411,700 shares $20.12 thousand +88.7%N/A0 $1.72 11/30/20246,200 shares $5.77 thousand -3.1%N/A0.1 $0.93 11/15/20246,400 shares $5.89 thousand +540.0%N/A0.3 $0.92 10/31/20241,000 shares $850.00 -70.6%N/A0 $0.85 10/15/20243,400 shares $3.08 thousand +466.7%N/A0.1 $0.91 9/30/2024600 shares $503.64 +500.0%N/A0 $0.84 9/15/2024100 shares $88.95 No ChangeN/A0 $0.89 8/31/2024100 shares $105.00 No ChangeN/A0 $1.05 8/15/2024100 shares $80.10 No ChangeN/A0 $0.80 7/31/2024100 shares $71.10 No ChangeN/A0 $0.71 7/15/2024100 shares $76.00 No ChangeN/A0 $0.76 6/30/2024100 shares $75.51 No ChangeN/A0 $0.76 6/15/2024100 shares $74.00 -90.0%N/A0 $0.74 5/31/20241,000 shares $750.00 +900.0%N/A0.1 $0.75 5/15/2024100 shares $74.00 -98.6%N/A0 $0.74 4/30/20247,000 shares $5.54 thousand +6,900.0%N/A0.3 $0.79 4/15/2024100 shares $67.00 No ChangeN/A0 $0.67 3/31/2024100 shares $70.00 No ChangeN/A0 $0.70 3/15/2024100 shares $70.00 -94.4%N/A0 $0.70 2/29/20241,800 shares $1.17 thousand +800.0%N/A0.1 $0.65 2/15/2024200 shares $137.28 -93.3%N/A0 $0.69 1/15/2024100 shares $75.10 No ChangeN/A0 $0.75 12/31/2023100 shares $81.00 No ChangeN/A0 $0.81 12/15/2023100 shares $83.99 -85.7%N/A0 $0.84 11/30/2023700 shares $616.00 -22.2%N/A0 $0.88 11/15/2023900 shares $785.25 -25.0%N/A0.3 $0.87 10/31/20231,200 shares $984.60 +300.0%N/A0 $0.82PH: Do THESE 4 things to your bank account now … (Ad)In a few short months, the US government could gain unprecedented powers over personal bank accounts - including the ability to track every transaction or freeze funds. Martin D. Weiss, PhD, founder of Weiss Ratings, has identified 4 simple steps Americans can take today to help safeguard their savings before any changes take effect.Discover all 4 steps to help protect your bank account now 10/15/2023300 shares $240.00 +200.0%N/A0 $0.80 9/30/2023100 shares $85.00 No ChangeN/A0 $0.85 9/15/2023100 shares $93.00 No ChangeN/A0 $0.93 8/31/2023100 shares $102.00 -50.0%N/A0 $1.02 8/15/2023200 shares $204.00 +100.0%N/A0 $1.02 7/31/2023100 shares $120.00 -90.9%N/A0 $1.20 7/15/20231,100 shares $1.24 thousand -54.2%N/A0.1 $1.13 6/30/20232,400 shares $2.40 thousand +2,300.0%N/A0.2 $1.00 6/15/2023100 shares $107.00 -87.5%N/A0 $1.07 5/31/2023800 shares $872.00 +700.0%N/A0.4 $1.09 5/15/2023100 shares $100.00 -92.3%N/A0 $1.00 4/30/20231,300 shares $1.38 thousand -31.6%N/A0.4 $1.06 4/15/20231,900 shares $2.30 thousand -9.5%N/A0.2 $1.21 3/31/20232,100 shares $2.49 thousand +2,000.0%N/A0 $1.19 3/15/2023100 shares $105.00 No ChangeN/A0.1 $1.05 2/28/2023100 shares $116.82 No ChangeN/A0 $1.17 2/15/2023100 shares $111.00 -96.0%N/A0 $1.11 1/31/20232,500 shares $3.08 thousand +2,400.0%N/A0.2 $1.23 1/15/2023100 shares $123.00 -90.0%N/A0 $1.23 12/30/20221,000 shares $1.25 thousand +900.0%N/A0.1 $1.25 12/15/2022100 shares $131.50 -98.7%N/A0 $1.32 11/30/20227,500 shares $10.80 thousand +525.0%N/A1.2 $1.44 11/15/20221,200 shares $1.58 thousand +33.3%N/A0.1 $1.32 10/31/2022900 shares $1.05 thousand +350.0%N/A0.1 $1.17 10/15/2022200 shares $195.90 -60.0%N/A0 $0.98 9/30/2022500 shares $474.75 +150.0%N/A0 $0.95 9/15/2022200 shares $236.00 -33.3%N/A0 $1.18 8/31/2022300 shares $330.00 -95.2%N/A0 $1.10 8/15/20226,200 shares $8.12 thousand -1.6%N/A0.3 $1.31 7/31/20226,300 shares $8.51 thousand +14.6%N/A0.1 $1.35 7/15/20225,500 shares $6.33 thousand +243.8%N/A1 $1.15 6/30/20221,600 shares $1.81 thousand +166.7%N/A0.4 $1.13 6/15/2022600 shares $798.00 +100.0%N/A0.7 $1.33 5/31/2022300 shares $390.00 -25.0%N/A0.1 $1.30 5/15/2022400 shares $480.00 -33.3%N/A0.1 $1.20 4/30/2022600 shares $924.00 +100.0%N/A0.1 $1.54 4/15/2022300 shares $450.00 -88.0%N/A0.1 $1.50 3/31/20222,500 shares $4.13 thousand -37.5%N/A0.1 $1.65 3/15/20224,000 shares $5.80 thousand +471.4%N/A1 $1.45 2/28/2022700 shares $1.01 thousand +40.0%N/A0.2 $1.44 2/15/2022500 shares $550.00 -28.6%N/A0.1 $1.10 1/31/2022700 shares $819.00 -22.2%N/A0 $1.17 1/15/2022900 shares $1.06 thousand -59.1%N/A0.1 $1.18 12/31/20212,200 shares $2.64 thousand -67.7%N/A0.1 $1.20 12/15/20216,800 shares $8.09 thousand -23.6%N/A0.3 $1.19 11/30/20218,900 shares $14.15 thousand +61.8%N/A0.3 $1.59 11/15/20215,500 shares $8.72 thousand -1.8%N/A0.3 $1.59 10/29/20215,600 shares $9.52 thousand No ChangeN/A0.5 $1.70 10/15/20215,600 shares $9.86 thousand -23.3%N/A0.7 $1.76 9/30/20217,300 shares $13.21 thousand -13.1%N/A1 $1.81Your book attached (Ad)Bill Poulos is giving away his 'Safe Trade Options Formula' book for free - but only for a limited time through a temporary download link. He plans to charge for it soon. Download your copy now and lock it in at no cost, regardless of future pricing.Download the Safe Trade Options Formula book for free before access closes 9/15/20218,400 shares $15.62 thousand -10.6%N/A1.1 $1.86 8/31/20219,400 shares $16.83 thousand +54.1%N/A0.8 $1.79 8/13/20216,100 shares $10.86 thousand -30.7%N/A0.2 $1.78 7/30/20218,800 shares $18.04 thousand +33.3%N/A0.3 $2.05 7/15/20216,600 shares $12.33 thousand -1.5%N/A0.7 $1.87 6/30/20216,700 shares $12.53 thousand -10.7%N/A0.2 $1.87 6/15/20217,500 shares $13.65 thousand +11.9%N/A0.7 $1.82 5/28/20216,700 shares $10.99 thousand +157.7%N/A0.7 $1.64 TGEN Short Interest - Frequently Asked Questions What is Tecogen's current short interest? Short interest is the volume of Tecogen shares that have been sold short but have not yet been closed out or covered. As of October 15th, investors have sold 1,220,000 shares of TGEN short. 7.14% of Tecogen's shares are currently sold short. Learn More on Tecogen's current short interest. What is a good short interest ratio for Tecogen? 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. TGEN shares currently have a short interest ratio of 1.4. Learn More on Tecogen's short interest ratio. What is a good short interest percentage for Tecogen? 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. 7.14% of Tecogen's floating shares are currently sold short. Is Tecogen's short interest increasing or decreasing? Tecogen saw a decline in short interest during the month of October. As of October 15th, there was short interest totaling 1,220,000 shares, a decline of 10.3% from the previous total of 1,360,000 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 Tecogen's float size? Tecogen currently has issued a total of 29,918,000 shares. Some of Tecogen'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. Tecogen currently has a public float of 17,080,000 shares. How does Tecogen's short interest compare to its competitors? 7.14% of Tecogen's shares are currently sold short. Here is how the short interest of companies in the industry of "machinery" compare to Tecogen: Kornit Digital Ltd. (2.19%), Richtech Robotics Inc. (29.08%), SCHMID Group N.V. (3.75%), Amtech Systems, Inc. (3.11%), Palladyne AI Corp. (16.95%), A2Z Cust2Mate Solutions Corp. (13.46%), Perma-Pipe International Holdings, Inc. (1.59%), AirJoule Technologies Corporation (7.05%), OMS Energy Technologies Inc. (0.01%), Taylor Devices, Inc. (1.82%), 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 ($65.09 billion), Invesco QQQ ($34.25 billion), iShares Russell 2000 ETF ($20.99 billion), iShares 20+ Year Treasury Bond ETF ($11.14 billion), AppLovin Corporation ($10.34 billion), Palo Alto Networks, Inc. ($9.62 billion), SPDR S&P Biotech ETF ($7.84 billion), Strategy Inc ($7.53 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($6.44 billion), and Robinhood Markets, Inc. ($5.90 billion). View all of the most shorted stocks. What does it mean to sell short Tecogen stock? Short selling TGEN is an investing strategy that aims to generate trading profit from Tecogen as its price is falling. TGEN shares are trading up $0.22 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 Tecogen? A short squeeze for Tecogen 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 TGEN, which in turn drives the price of the stock up even further. How often is Tecogen'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 TGEN, twice per month. The most recent reporting period available is October, 15 2025. What do TGEN's short interest metrics mean? Understanding short interest metrics can help you assess how traders are positioning around a stock like TGEN:Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity. More Short Interest Resources from MarketBeat Related Companies Kornit Digital Short Interest Richtech Robotics Short Interest SCHMID Group Short Interest Amtech Systems Short Interest Palladyne AI Short Interest A2Z Cust2Mate Solutions Short Interest Perma-Pipe International Short Interest AirJoule Technologies Short Interest OMS Energy Technologies Short Interest Taylor Devices Short Interest Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (OTCMKTS:TGEN) was last updated on 5/24/2026 by MarketBeat.com Staff. From Our PartnersHey, it's Jon Najarian. The SpaceX IPO is right around the corner. But I discovered Elon may have something BIGGER planned. 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