Castellum (CTM) Short Interest Ratio & Short Volume $1.17 -0.12 (-9.30%) Closing price 07/29/2025 04:10 PM EasternExtended Trading$1.21 +0.04 (+3.08%) As of 04:26 AM 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 ForecastsChartEarningsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestBuy This Stock Castellum Short Interest DataCastellum (CTM) has a short interest of 534,200 shares, representing 0.87% of the float (the number of shares available for trading by the public). This marks a -23.63% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.3, indicating that it would take 0.3 days of the average trading volume of 3.17 million shares to cover all short positions.Current Short Interest534,200 sharesPrevious Short Interest699,500 sharesChange Vs. Previous Month-23.63%Dollar Volume Sold Short$560.91 thousandShort Interest Ratio0.3 Days to CoverLast Record DateJune 30, 2025Outstanding Shares86,040,000 sharesFloat Size61,440,000 sharesShort Percent of Float0.87%Today's Trading Volume3,977,105 sharesAverage Trading Volume3,166,780 sharesToday's Volume Vs. Average126% Short Selling Castellum? Sign up to receive the latest short interest report for Castellum and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartCTM Short Interest Over TimeCTM Days to Cover Over TimeCTM Percentage of Float Shorted Over Time Castellum Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/30/2025534,200 shares $560.91 thousand -23.6%0.9%0.3 $1.05 6/15/2025699,500 shares $818.42 thousand +8.0%1.1%0.4 $1.17 5/31/2025647,500 shares $640.77 thousand -55.7%1.1%0.3 $0.99 5/15/20251,460,000 shares $1.53 million -1.4%2.5%0.4 $1.05 4/30/20251,480,000 shares $1.45 million -28.9%2.6%0.4 $0.98 4/15/20252,080,000 shares $2.04 million -20.9%3.7%0.5 $0.98 3/31/20252,630,000 shares $2.79 million -7.4%4.7%0.5 $1.06 3/15/20252,840,000 shares $3.35 million +54.4%5.0%0.3 $1.18 2/28/20251,840,000 shares $1.99 million -5.6%3.6%0.2 $1.08 2/15/20251,950,000 shares $0.00 +200.6%3.9%0.2 $0.00 Get the Latest News and Ratings for CTM and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Castellum and its competitors with MarketBeat's FREE daily newsletter. 1/31/2025648,700 shares $0.00 -31.7%1.4%0.1 $0.00 1/15/2025949,200 shares $0.00 -69.4%2.0%0.1 $0.00 12/31/20243,100,000 shares $0.00 +378.3%8.6%0.4 $0.00 12/15/2024648,100 shares $0.00 +217.2%2.2%0.2 $0.00 11/30/2024204,300 shares $0.00 -38.5%0.7%0.1 $0.00 11/15/2024332,300 shares $0.00 +228.7%1.1%0.2 $0.00 10/31/2024101,100 shares $0.00 -44.3%0.4%0.1 $0.00 10/15/2024181,500 shares $0.00 -11.1%0.6%0.7 $0.00 9/30/2024204,200 shares $0.00 -54.2%0.7%0.2 $0.00 9/15/2024445,800 shares $0.00 -9.1%1.5%0.3 $0.00 8/31/2024490,400 shares $0.00 +45.1%1.8%0.4 $0.00 8/15/2024338,100 shares $0.00 -42.4%1.2%0.3 $0.00 7/31/2024586,500 shares $0.00 +559.7%2.2%0.5 $0.00 7/15/202488,900 shares $0.00 -28.5%0.3%0.1 $0.00 6/30/2024124,300 shares $0.00 -19.4%0.5%0.9 $0.00 6/15/2024154,300 shares $0.00 -11.8%0.6%1.2 $0.00 5/31/2024175,000 shares $0.00 +136.5%0.6%1.3 $0.00 5/15/202474,000 shares $0.00 -24.5%0.3%0.5 $0.00 4/30/202498,000 shares $0.00 -7.1%0.4%0.7 $0.00 4/15/2024105,500 shares $0.00 +25.5%0.4%0.6 $0.00 3/31/202484,100 shares $0.00 -11.5%0.3%0.4 $0.00 3/15/202495,000 shares $0.00 +88.5%0.4%0.4 $0.00 2/29/202450,400 shares $0.00 +145.9%0.3%0.2 $0.00 2/15/202420,500 shares $0.00 -54.8%0.3%0.1 $0.00 1/31/202445,300 shares $0.00 -37.3%0.7%0.2 $0.00 1/15/202472,200 shares $0.00 -28.8%1.2%0.1 $0.00 12/31/2023101,400 shares $0.00 -8.7%1.7%0.2 $0.00 12/15/2023111,000 shares $0.00 -25.8%1.9%0.2 $0.00 11/30/2023149,500 shares $0.00 -37.4%2.6%0.2 $0.00 11/15/2023238,700 shares $0.00 -50.9%4.1%0.4 $0.00Trump’s betrayal exposed (Ad)Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to move your money now.Millions of Americans are about to be wiped out, while others could make a fortune… click here to ma 10/31/2023485,900 shares $0.00 +301.2%8.3%0.7 $0.00 10/15/2023121,100 shares $0.00 +56.7%2.1%0.3 $0.00 9/30/202377,300 shares $0.00 -48.0%1.3%0.3 $0.00 9/15/2023148,700 shares $0.00 +5.9%2.5%0.5 $0.00 8/31/2023140,400 shares $0.00 +354.4%2.5%0.3 $0.00 8/15/202330,900 shares $0.00 -40.4%0.5%0.1 $0.00 7/31/202351,800 shares $0.00 +7.7%0.9%0.2 $0.00 7/15/202348,100 shares $0.00 -50.8%0.9%0.2 $0.00 6/30/202397,700 shares $0.00 +125.1%1.7%0.3 $0.00 6/15/202343,400 shares $0.00 -1.6%0.8%0.2 $0.00 5/31/202344,100 shares $0.00 -22.5%0.1%0.8 $0.00 5/15/202356,900 shares $0.00 No Change0.1%1 $0.00 CTM Short Interest - Frequently Asked Questions What is Castellum's current short interest? Short interest is the volume of Castellum shares that have been sold short but have not yet been covered or closed out. As of June 30th, investors have sold 534,200 shares of CTM short. 0.87% of Castellum's shares are currently sold short. Learn More on Castellum's current short interest. What is a good short interest percentage for Castellum? 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. 0.87% of Castellum's floating shares are currently sold short. Is Castellum's short interest increasing or decreasing? Castellum saw a drop in short interest in June. As of June 30th, there was short interest totaling 534,200 shares, a drop of 23.6% from the previous total of 699,500 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 Castellum's float size? Castellum currently has issued a total of 86,040,000 shares. Some of Castellum'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. Castellum currently has a public float of 61,440,000 shares. How does Castellum's short interest compare to its competitors? 0.87% of Castellum's shares are currently sold short. Here is how the short interest of companies in the industry of "business services" compare to Castellum: Conduent Inc. (2.31%), Paysign, Inc. (1.96%), GRAVITY Co., Ltd. (0.21%), Rimini Street, Inc. (1.24%), Benev Capital Inc. (0.38%), IBEX Limited (1.92%), Zhihu Inc. Sponsored ADR (8.59%), Absci Corporation (28.80%), Lightbridge Corporation (20.06%), ReposiTrak Inc. (13.27%), 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 ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks. What does it mean to sell short Castellum stock? Short selling CTM is an investing strategy that aims to generate trading profit from Castellum as its price is falling. CTM shares are trading down $0.12 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 Castellum? A short squeeze for Castellum 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 CTM, which in turn drives the price of the stock up even further. How often is Castellum'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 CTM, twice per month. The most recent reporting period available is June, 30 2025. More Short Interest Resources from MarketBeat Related Companies Conduent Short Interest Data Paysign Short Interest Data GRAVITY Short Interest Data Rimini Street Short Interest Data Benev Capital Short Interest Data IBEX Short Interest Data Zhihu Short Interest Data Absci Short Interest Data Lightbridge Short Interest Data ReposiTrak 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 (NYSEAMERICAN:CTM) was last updated on 7/30/2025 by MarketBeat.com Staff From Our PartnersAI Frenzy Could Send ‘EarnPhone’ SoaringThe hidden fuel behind AI? Your phone. 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