SIGA Technologies (SIGA) Short Interest Ratio & Short Volume $6.42 -0.06 (-0.85%) As of 11:17 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock SIGA Technologies Short Interest DataSIGA Technologies (SIGA) has a short interest of 4.00 million shares, representing 9.87% of the float (the number of shares available for trading by the public). This marks a 4.71% increase in short interest from the previous month. The short interest ratio (days to cover) is 8.9, indicating that it would take 8.9 days of the average trading volume of 773,901 shares to cover all short positions.Current Short Interest4,000,000 sharesPrevious Short Interest3,820,000 sharesChange Vs. Previous Month+4.71%Dollar Volume Sold Short$21.92 millionShort Interest Ratio8.9 Days to CoverLast Record DateMarch 31, 2025Outstanding Shares71,437,000 sharesFloat Size40,530,000 sharesShort Percent of Float9.87%Today's Trading Volume261,082 sharesAverage Trading Volume773,901 sharesToday's Volume Vs. Average34% Short Selling SIGA Technologies? Sign up to receive the latest short interest report for SIGA Technologies and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartSIGA Short Interest Over TimeSIGA Days to Cover Over TimeSIGA Percentage of Float Shorted Over Time SIGA Technologies Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 3/31/20254,000,000 shares $21.92 million +4.7%9.9%8.9 $5.48 3/15/20253,820,000 shares $21.32 million -6.8%9.4%8.7 $5.58 2/28/20254,100,000 shares $22.51 million +28.5%10.1%9.2 $5.49 2/15/20253,190,000 shares $19.59 million -9.4%7.9%7 $6.14 1/31/20253,520,000 shares $21.05 million +3.5%8.7%7.7 $5.98 1/15/20253,400,000 shares $21.59 million -2.6%8.4%7.1 $6.35 12/31/20243,490,000 shares $20.97 million -0.9%8.6%7.1 $6.01 12/15/20243,520,000 shares $21.75 million -4.9%8.7%6.7 $6.18 11/30/20243,700,000 shares $26.94 million +4.8%9.1%6.7 $7.28 11/15/20243,530,000 shares $20.97 million -22.8%8.7%6 $5.94 Get the Latest News and Ratings for SIGA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for SIGA Technologies and its competitors with MarketBeat's FREE daily newsletter. 10/31/20244,570,000 shares $33.00 million -7.3%11.3%3.4 $7.22 10/15/20244,930,000 shares $33.23 million -2.4%12.2%3.5 $6.74 9/30/20245,050,000 shares $34.09 million -8.5%12.5%3.6 $6.75 9/15/20245,520,000 shares $43.61 million +6.6%13.6%3.9 $7.90 8/31/20245,180,000 shares $46.78 million -15.6%12.8%3.7 $9.03 8/15/20246,140,000 shares $59.07 million +11.2%15.2%4.6 $9.62 7/31/20245,520,000 shares $55.09 million -4.3%13.7%8.3 $9.98 7/15/20245,770,000 shares $52.68 million +3.4%14.3%8.4 $9.13 6/30/20245,580,000 shares $42.35 million +6.3%13.9%7.7 $7.59 6/15/20245,250,000 shares $35.02 million +2.5%13.0%6.4 $6.67 5/31/20245,120,000 shares $38.30 million +2.4%12.7%5 $7.48 5/15/20245,000,000 shares $39 million -8.3%12.4%5 $7.80 4/30/20245,450,000 shares $47.85 million +10.1%13.5%5.9 $8.78 4/15/20244,950,000 shares $43.96 million -3.7%12.3%6.3 $8.88 3/31/20245,140,000 shares $44.00 million -6.9%12.8%7.2 $8.56 3/15/20245,520,000 shares $40.46 million +8.0%13.7%9.5 $7.33 2/29/20245,110,000 shares $26.62 million +1.2%12.7%14.3 $5.21 2/15/20245,050,000 shares $26.01 million -4.5%12.5%13.7 $5.15 1/31/20245,290,000 shares $25.82 million +3.7%13.1%13.2 $4.88 1/15/20245,100,000 shares $27.44 million -2.3%12.6%13.2 $5.38 12/31/20235,220,000 shares $29.23 million -0.4%12.9%13.2 $5.60 12/15/20235,240,000 shares $29.13 million -12.7%13.0%12.3 $5.56 11/30/20236,000,000 shares $32.58 million -1.5%14.8%13.4 $5.43 11/15/20236,090,000 shares $31.12 million -2.3%15.1%13.9 $5.11 10/31/20236,230,000 shares $31.77 million -0.3%15.4%12.6 $5.10 10/15/20236,250,000 shares $34 million +1.6%15.5%7.2 $5.44 9/30/20236,150,000 shares $32.29 million -0.3%15.2%7.1 $5.25 9/15/20236,170,000 shares $28.20 million +13.8%15.3%7.1 $4.57 8/31/20235,420,000 shares $24.88 million -0.9%13.4%6.1 $4.59 8/15/20235,470,000 shares $27.73 million +17.9%13.5%6 $5.07Warning: “DOGE Collapse” imminent (Ad)Elon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. Just this week, President Trump promised to buy a Tesla to help support Musk in the face of a boycott against his company. But according to one research group, with connections to the Pentagon and the U.S. government, Elon's preparing to strike back in a much bigger way in the days ahead.Click here to see what they’re predicting now. 7/31/20234,640,000 shares $26.63 million -4.9%11.4%4.7 $5.74 7/15/20234,880,000 shares $24.06 million -1.6%12.0%7.6 $4.93 6/30/20234,960,000 shares $25.05 million +0.6%12.2%7.4 $5.05 6/15/20234,930,000 shares $28.50 million -4.1%12.1%7.1 $5.78 5/31/20235,140,000 shares $28.84 million +0.8%12.6%6.6 $5.61 5/15/20235,100,000 shares $29.58 million +39.7%12.5%6.2 $5.80 4/30/20233,650,000 shares $21.28 million +7.4%8.9%4.7 $5.83 4/15/20233,400,000 shares $20.23 million -1.2%8.2%4.5 $5.95 3/31/20233,440,000 shares $19.78 million +9.9%8.2%4.4 $5.75 3/15/20233,130,000 shares $17.59 million No Change7.5%3.9 $5.62 2/28/20233,130,000 shares $21.44 million +12.6%7.5%4.1 $6.85 2/15/20232,780,000 shares $19.18 million No Change6.6%3.7 $6.90 1/31/20232,780,000 shares $20.38 million -25.3%6.6%3.2 $7.33 1/15/20233,720,000 shares $31.32 million -5.3%8.8%3.9 $8.42 12/30/20223,930,000 shares $28.92 million -13.4%9.6%3.8 $7.36 12/15/20224,540,000 shares $34.50 million +0.7%11.1%3.7 $7.60 11/30/20224,510,000 shares $41.40 million -7.4%11.0%3 $9.18 11/15/20224,870,000 shares $45.97 million -0.6%11.9%2.4 $9.44 10/31/20224,900,000 shares $45.03 million +0.8%12.0%1.6 $9.19 10/15/20224,860,000 shares $44.81 million +3.6%11.9%0.7 $9.22 9/30/20224,690,000 shares $48.31 million -14.3%11.5%0.5 $10.30 9/15/20225,470,000 shares $69.63 million -3.5%13.4%0.6 $12.73 8/31/20225,670,000 shares $85.50 million -14.6%14.0%0.5 $15.08 8/15/20226,640,000 shares $173.64 million +17.9%16.4%0.4 $26.15 7/31/20225,630,000 shares $96.78 million +58.6%14.0%0.3 $17.19 7/15/20223,550,000 shares $53.11 million -12.8%8.8%0.3 $14.96 6/30/20224,070,000 shares $47.13 million -4.5%10.1%0.4 $11.58 6/15/20224,260,000 shares $44.05 million +50.0%10.6%0.5 $10.34 5/31/20222,840,000 shares $31.07 million +90.6%7.0%0.4 $10.94 5/15/20221,490,000 shares $11.12 million +16.4%3.7%0.4 $7.46 4/30/20221,280,000 shares $8.79 million +5.8%3.1%8.4 $6.87 4/15/20221,210,000 shares $8.32 million -3.2%3.0%7.8 $6.88 3/31/20221,250,000 shares $8.86 million No Change3.0%7.8 $7.09 3/15/20221,250,000 shares $8.89 million +2.5%3.0%7.9 $7.11 2/28/20221,220,000 shares $7.32 million +0.8%2.9%5.9 $6.00 2/15/20221,210,000 shares $7.60 million -2.4%2.9%5.1 $6.28 1/31/20221,240,000 shares $8.07 million +1.6%2.9%3.9 $6.51 1/15/20221,220,000 shares $8.53 million -3.9%2.9%3.8 $6.99 12/31/20211,270,000 shares $9.55 million -13.0%3.0%4.1 $7.52 12/15/20211,460,000 shares $10.96 million +14.1%3.5%4.4 $7.51 11/30/20211,280,000 shares $10.44 million -2.3%3.0%3.4 $8.16 11/15/20211,310,000 shares $9.98 million No Change3.1%3.9 $7.62 10/29/20211,310,000 shares $9.45 million +1.6%3.1%5.2 $7.21 10/15/20211,290,000 shares $9.17 million -19.4%3.0%5.1 $7.11 9/30/20211,600,000 shares $11.82 million -4.8%3.8%5 $7.39 9/15/20211,680,000 shares $11.21 million -6.2%3.9%5.1 $6.67 8/31/20211,790,000 shares $11.69 million +2.9%4.2%5.6 $6.53 8/13/20211,740,000 shares $11.00 million +3.0%4.0%5.8 $6.32 7/30/20211,690,000 shares $10.77 million +9.0%3.9%5.6 $6.37 7/15/20211,550,000 shares $8.96 million +15.7%3.6%5.2 $5.78Warning: “DOGE Collapse” imminent (Ad)Elon Strikes Back You may already sense that the tide is turning against Elon Musk and DOGE. Just this week, President Trump promised to buy a Tesla to help support Musk in the face of a boycott against his company. But according to one research group, with connections to the Pentagon and the U.S. government, Elon's preparing to strike back in a much bigger way in the days ahead.Click here to see what they’re predicting now. 6/30/20211,340,000 shares $8.42 million -20.7%3.1%5 $6.28 6/15/20211,690,000 shares $11.10 million -2.9%3.9%6.4 $6.57 5/28/20211,740,000 shares $12.27 million -0.6%4.0%6.4 $7.05 5/14/20211,750,000 shares $11.88 million +4.8%4.0%6.5 $6.79 4/30/20211,670,000 shares $11.76 million -4.6%3.8%5.9 $7.04 4/15/20211,750,000 shares $12.23 million -9.8%3.9%6 $6.99 3/31/20211,940,000 shares $12.65 million +4.9%4.3%7.1 $6.52 3/15/20211,850,000 shares $12.86 million -7.0%4.1%7.4 $6.95 2/26/20211,990,000 shares $12.70 million +1.0%4.5%8.6 $6.38 2/12/20211,970,000 shares $12.77 million +3.7%4.4%8.8 $6.48 1/29/20211,900,000 shares $12.39 million -2.6%4.2%8.3 $6.52 1/15/20211,950,000 shares $14.43 million -7.6%4.3%9.1 $7.40 12/31/20202,110,000 shares $15.36 million -2.8%4.7%10 $7.28 12/15/20202,170,000 shares $15.30 million -8.4%4.8%10.1 $7.05 11/30/20202,370,000 shares $16.78 million -5.2%5.2%9.5 $7.08 11/15/20202,500,000 shares $19.03 million -2.7%5.5%9.8 $7.61 10/30/20202,570,000 shares $16.81 million +6.2%5.7%9.8 $6.54 10/15/20202,420,000 shares $16.34 million -2.8%5.3%8.5 $6.75 SIGA Short Interest - Frequently Asked Questions What is SIGA Technologies' current short interest? Short interest is the volume of SIGA Technologies shares that have been sold short but have not yet been covered or closed out. As of March 31st, traders have sold 4,000,000 shares of SIGA short. 9.87% of SIGA Technologies' shares are currently sold short. Learn More on SIGA Technologies' current short interest. What is a good short interest ratio for SIGA Technologies? 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. SIGA shares currently have a short interest ratio of 9.0. Learn More on SIGA Technologies's short interest ratio. Which institutional investors are shorting SIGA Technologies? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of SIGA Technologies: GTS Securities LLC, Millennium Management LLC, Group One Trading LLC, Citadel Advisors LLC, Concourse Financial Group Securities Inc., and Walleye Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for SIGA Technologies? 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. 9.87% of SIGA Technologies' floating shares are currently sold short. Is SIGA Technologies' short interest increasing or decreasing? SIGA Technologies saw a increase in short interest during the month of March. As of March 31st, there was short interest totaling 4,000,000 shares, an increase of 4.7% from the previous total of 3,820,000 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 SIGA Technologies' float size? SIGA Technologies currently has issued a total of 71,437,000 shares. Some of SIGA Technologies' 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. SIGA Technologies currently has a public float of 40,530,000 shares. How does SIGA Technologies' short interest compare to its competitors? 9.87% of SIGA Technologies' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to SIGA Technologies: Janux Therapeutics, Inc. (20.38%), Beam Therapeutics Inc. (18.58%), Arrowhead Pharmaceuticals, Inc. (9.93%), Harmony Biosciences Holdings, Inc. (8.02%), Kymera Therapeutics, Inc. (14.66%), Galapagos NV (3.91%), Bausch Health Companies Inc. (2.69%), Centessa Pharmaceuticals plc (5.20%), Agios Pharmaceuticals, Inc. (6.43%), Arcutis Biotherapeutics, Inc. (13.81%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Invesco QQQ ($21.93 billion), iShares 20+ Year Treasury Bond ETF ($9.31 billion), Strategy Incorporated ($8.42 billion), Charter Communications, Inc. ($4.52 billion), Apollo Global Management, Inc. ($4.26 billion), Super Micro Computer, Inc. ($3.98 billion), Capital One Financial Co. ($3.79 billion), TC Energy Co. ($3.43 billion), AppLovin Co. ($2.91 billion), and Schlumberger Limited ($2.89 billion). View all of the most shorted stocks. What does it mean to sell short SIGA Technologies stock? Short selling SIGA is an investing strategy that aims to generate trading profit from SIGA Technologies as its price is falling. SIGA shares are trading down $0.06 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 SIGA Technologies? A short squeeze for SIGA Technologies 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 SIGA, which in turn drives the price of the stock up even further. How often is SIGA Technologies' 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 SIGA, twice per month. The most recent reporting period available is March, 31 2025. More Short Interest Resources from MarketBeat Related Companies JANX Short Squeeze BEAM Short Squeeze ARWR Short Squeeze HRMY Short Squeeze KYMR Short Squeeze GLPG Short Squeeze BHC Short Squeeze CNTA Short Squeeze AGIO Short Squeeze ARQT 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:SIGA) was last updated on 4/25/2025 by MarketBeat.com Staff From Our PartnersElon Set to Shock the World by May 1st ?Tech legend Jeff Brown recently traveled to the industrial zone of South Memphis to investigate what he believ...Brownstone Research | Sponsored[Action Required] Claim Your FREE IRS Loophole GuideThis shouldn't surprise anyone who's been paying attention, but... Pres. 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