Biomerica (BMRA) Short Interest Ratio & Short Volume $3.18 +0.07 (+2.25%) Closing price 04:00 PM EasternExtended Trading$3.08 -0.10 (-2.99%) As of 07:36 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 AnalysisChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Biomerica Short Interest DataBiomerica (BMRA) has a short interest of 43,000 shares, representing 1.89% of the float (the number of shares available for trading by the public). This marks a 162.20% increase in short interest from the previous month. The short interest ratio (days to cover) is 0.5, indicating that it would take 0.5 days of the average trading volume of 276,905 shares to cover all short positions.Current Short Interest43,000 sharesPrevious Short Interest16,400 sharesChange Vs. Previous Month+162.20%Dollar Volume Sold Short$155,660.00Short Interest Ratio0.5 Days to CoverLast Record DateApril 30, 2025Outstanding Shares2,546,000 sharesFloat Size2,270,000 sharesShort Percent of Float1.89%Today's Trading Volume15,550 sharesAverage Trading Volume276,905 sharesToday's Volume Vs. Average6% Short Selling Biomerica? Sign up to receive the latest short interest report for Biomerica and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartBMRA Short Interest Over TimeBMRA Days to Cover Over TimeBMRA Percentage of Float Shorted Over Time Biomerica Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 4/30/202543,000 shares $155,660.00 +162.2%1.9%0.5 $3.62 4/15/202516,400 shares $74,770.88 -91.2%0.7%0.2 $4.56 3/31/2025186,000 shares $105,462.00 +274.3%1.2%0 $0.57 3/15/202549,700 shares $30,888.55 -65.5%0.3%0 $0.62 2/28/2025143,900 shares $105,752.11 -65.7%0.9%0 $0.73 2/15/2025419,000 shares $347,770.00 +64.6%2.7%0.1 $0.83 1/31/2025254,500 shares $128,497.05 -7.6%N/A0 $0.50 1/15/2025275,500 shares $96,425.00 -24.3%N/A0 $0.35 12/31/2024364,100 shares $109,266.41 -53.5%N/A0.4 $0.30 12/15/2024782,800 shares $245,642.64 -45.3%N/A0.9 $0.31 Get the Latest News and Ratings for BMRA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Biomerica and its competitors with MarketBeat's FREE daily newsletter. 11/30/20241,430,000 shares $556,985.00 +284.7%N/A1.7 $0.39 11/15/2024371,700 shares $129,760.47 -33.9%N/A0.8 $0.35 10/31/2024562,400 shares $209,212.80 +50.5%N/A1.3 $0.37 10/15/2024373,700 shares $119,995.07 -14.9%N/A1 $0.32 9/30/2024439,000 shares $143,816.40 -22.1%N/A1.2 $0.33 9/15/2024563,400 shares $170,710.20 +582.1%N/A1.5 $0.30 8/31/202482,600 shares $36,344.00 +58.2%N/A0.2 $0.44 8/15/202452,200 shares $16,234.20 -27.5%N/A0.7 $0.31 7/31/202472,000 shares $23,825.52 -14.3%N/A0.9 $0.33 7/15/202484,000 shares $30,063.60 +8.7%N/A0.4 $0.36 6/30/202477,300 shares $33,996.54 -54.4%N/A0.3 $0.44 6/15/2024169,500 shares $97,801.50 -3.3%N/A0.7 $0.58 5/31/2024175,200 shares $101,721.12 -49.0%N/A0.8 $0.58 5/15/2024343,400 shares $209,130.60 +219.7%N/A1.5 $0.61 4/30/2024107,400 shares $64,010.40 +63.2%N/A0.5 $0.60 4/15/202465,800 shares $50,666.00 -1.1%N/A1 $0.77 3/31/202466,500 shares $55,328.00 -13.3%N/A1.1 $0.83 3/15/202476,700 shares $81,302.00 -42.6%N/A0.7 $1.06 2/29/2024133,500 shares $162,870.00 -6.8%N/A0.1 $1.22 2/15/2024143,300 shares $138,599.76 +3.2%N/A0.1 $0.97 1/31/2024138,800 shares $129,084.00 -24.1%N/A0.1 $0.93 1/15/2024182,900 shares $171,487.04 -36.0%N/A0.2 $0.94 12/31/2023285,700 shares $357,125.00 -19.4%N/A0.2 $1.25 12/15/2023354,400 shares $350,856.00 -6.8%N/A0.3 $0.99 11/30/2023380,200 shares $353,586.00 +5.6%N/A6.9 $0.93 11/15/2023360,100 shares $313,719.12 -13.0%N/A6.7 $0.87 10/31/2023414,100 shares $405,818.00 +10.3%N/A6.8 $0.98 10/15/2023375,300 shares $278,097.30 -13.4%N/A1.6 $0.74 9/30/2023433,200 shares $372,638.64 -2.2%N/A1.9 $0.86 9/15/2023442,800 shares $487,080.00 -7.1%N/A2 $1.10Trump’s Bitcoin Reserve is No Accident… (Ad)Bryce Paul believes this is the #1 coin to buy right now The catalyst behind this surge is a massive new blockchain development…Just click here to get all the details on this crypto coin now 8/31/2023476,400 shares $609,792.00 -11.4%N/A2.1 $1.28 8/15/2023537,800 shares $603,142.70 +56.0%N/A2.3 $1.12 7/31/2023344,700 shares $455,004.00 -3.6%N/A1.5 $1.32 7/15/2023357,600 shares $518,520.00 -3.8%N/A7.7 $1.45 6/30/2023371,600 shares $505,376.00 +12.4%N/A7.9 $1.36 6/15/2023330,600 shares $548,796.00 +2.0%N/A7 $1.66 5/31/2023324,100 shares $444,017.00 +3.8%N/A8.2 $1.37 5/15/2023312,300 shares $390,375.00 -9.0%N/A6.7 $1.25 4/30/2023343,000 shares $456,190.00 -14.8%N/A8.3 $1.33 4/15/2023402,500 shares $675,797.50 -5.4%N/A10.8 $1.68 3/31/2023425,300 shares $795,311.00 -3.9%N/A11.6 $1.87 3/15/2023442,500 shares $1.00 million -0.4%N/A12.1 $2.26 2/28/2023444,400 shares $1.20 million -1.3%3.6%12.9 $2.70 2/15/2023450,400 shares $1.33 million +8.9%3.7%16.5 $2.95 1/31/2023413,600 shares $1.24 million +4.1%3.4%15.3 $3.00 1/15/2023397,200 shares $1.19 million -8.1%3.5%14.2 $3.00 12/30/2022432,300 shares $1.45 million -0.3%3.8%5.7 $3.35 12/15/2022433,700 shares $1.53 million -7.4%3.8%5.1 $3.52 11/30/2022468,500 shares $1.63 million -6.0%4.1%5.3 $3.48 11/15/2022498,200 shares $1.65 million -2.3%4.4%5.3 $3.32 10/31/2022509,700 shares $1.68 million +31.6%4.5%5.2 $3.29 10/15/2022387,400 shares $1.43 million +10.4%3.4%3.7 $3.70 9/30/2022351,000 shares $1.38 million +8.2%3.1%1.1 $3.93 9/15/2022324,300 shares $1.23 million -11.9%2.9%1.1 $3.78 8/31/2022367,900 shares $1.30 million -8.1%3.3%1.2 $3.54 8/15/2022400,200 shares $1.27 million -12.2%3.7%1.4 $3.17 7/31/2022455,700 shares $1.26 million +46.7%4.3%1.6 $2.77 7/15/2022310,700 shares $904,137.00 -0.8%2.9%1.1 $2.91 6/30/2022313,300 shares $905,437.00 -3.0%2.9%11.8 $2.89 6/15/2022323,000 shares $969,000.00 -6.1%4.9%12.3 $3.00 5/31/2022343,800 shares $1.20 million -3.3%3.2%11.5 $3.50 5/15/2022355,600 shares $1.07 million -15.0%3.3%9.3 $3.01 4/30/2022418,200 shares $1.64 million -6.3%3.9%9.6 $3.93 4/15/2022446,300 shares $1.99 million -6.1%4.2%8.6 $4.47 3/31/2022475,200 shares $2.12 million +1.9%4.4%7.1 $4.47 3/15/2022466,200 shares $1.69 million -10.4%4.4%5.7 $3.62 2/28/2022520,100 shares $2.26 million -8.5%4.9%4 $4.34 2/15/2022568,400 shares $2.52 million -34.9%5.3%4.1 $4.44 1/31/2022872,600 shares $3.72 million -8.3%8.2%4.7 $4.26 1/15/2022951,800 shares $4.18 million +1.2%8.9%4.6 $4.39 12/31/2021941,000 shares $3.66 million +18.0%9.1%3.3 $3.89 12/15/2021797,700 shares $3.24 million -0.3%7.7%0.4 $4.06 11/30/2021800,300 shares $3.88 million -32.2%7.7%0.4 $4.85 11/15/20211,180,000 shares $5.55 million +10.3%11.4%0.6 $4.70 10/29/20211,070,000 shares $4.91 million -18.9%10.3%0.5 $4.59 10/15/20211,320,000 shares $7.31 million +66.2%12.7%0.7 $5.54 9/30/2021794,300 shares $3.57 million -18.5%7.6%0.4 $4.50 9/15/2021974,500 shares $4.01 million -11.4%9.4%8 $4.12 8/31/20211,100,000 shares $4.93 million -1.8%10.6%6.8 $4.48 8/13/20211,120,000 shares $4.55 million No Change11.0%6.6 $4.06Trump’s Bitcoin Reserve is No Accident… (Ad)Bryce Paul believes this is the #1 coin to buy right now The catalyst behind this surge is a massive new blockchain development…Just click here to get all the details on this crypto coin now 7/30/20211,120,000 shares $4.20 million +13.5%11.0%3.5 $3.75 7/15/2021986,900 shares $3.51 million +3.5%9.7%3.2 $3.56 6/30/2021953,400 shares $3.82 million -0.5%9.3%3.3 $4.01 6/15/2021958,200 shares $3.89 million +15.7%9.4%3.2 $4.06 5/28/2021828,100 shares $3.02 million -16.1%8.1%2.8 $3.65 5/14/2021986,600 shares $3.55 million -1.2%N/A3.7 $3.60 4/30/2021998,300 shares $4.69 million -2.1%N/A4.8 $4.70 4/15/20211,020,000 shares $5.21 million +11.0%N/A5.9 $5.11 3/31/2021919,200 shares $4.82 million -10.8%9.5%2.3 $5.24 3/15/20211,030,000 shares $6.20 million -8.9%10.7%2.7 $6.02 2/26/20211,130,000 shares $7.09 million -3.4%11.7%2.9 $6.27 2/12/20211,170,000 shares $8.89 million -7.9%12.1%3 $7.60 1/29/20211,270,000 shares $8.53 million +31.0%13.2%3.2 $6.72 1/15/2021969,200 shares $5.87 million +34.9%10.0%2.6 $6.06 12/31/2020718,300 shares $3.51 million -6.7%7.9%2.1 $4.88 12/15/2020769,500 shares $4.39 million -3.7%8.5%5.6 $5.71 11/30/2020799,300 shares $5.39 million +15.5%8.8%5.5 $6.74 11/15/2020692,100 shares $4.65 million +2.5%7.7%3.8 $6.72 10/30/2020675,000 shares $3.77 million +3.4%7.5%2.6 $5.59 10/15/2020653,000 shares $5.07 million -1.9%7.2%2 $7.76 9/30/2020665,300 shares $4.61 million -17.5%7.4%1.2 $6.93 9/15/2020806,300 shares $5.59 million +9.2%8.9%1.3 $6.93 8/31/2020738,300 shares $5.36 million +11.3%8.2%0.9 $7.26 8/14/2020663,200 shares $5.45 million +26.8%7.3%0.8 $8.22 7/31/2020523,200 shares $4.77 million -11.0%5.8%0.7 $9.11 7/15/2020587,700 shares $5.62 million +19.5%6.6%0.7 $9.56 6/30/2020491,800 shares $3.57 million +87.2%5.7%0.6 $7.25 6/15/2020262,700 shares $1.43 million +109.5%3.1%0.3 $5.46 5/29/2020125,400 shares $812,592.00 +10.4%1.5%0.1 $6.48 BMRA Short Interest - Frequently Asked Questions What is Biomerica's current short interest? Short interest is the volume of Biomerica shares that have been sold short but have not yet been covered or closed out. As of April 30th, investors have sold 43,000 shares of BMRA short. 1.89% of Biomerica's shares are currently sold short. Learn More on Biomerica's current short interest. Which institutional investors are shorting Biomerica? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Biomerica: Simplex Trading LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Biomerica? 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. 1.89% of Biomerica's floating shares are currently sold short. Is Biomerica's short interest increasing or decreasing? Biomerica saw a increase in short interest in the month of April. As of April 30th, there was short interest totaling 43,000 shares, an increase of 162.2% from the previous total of 16,400 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 Biomerica's float size? Biomerica currently has issued a total of 2,546,000 shares. Some of Biomerica'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. Biomerica currently has a public float of 2,270,000 shares. How does Biomerica's short interest compare to its competitors? 1.89% of Biomerica's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Biomerica: Aligos Therapeutics, Inc. (20.79%), Estrella Immunopharma, Inc. (0.21%), Alterity Therapeutics Limited (0.35%), FibroBiologics, Inc. (5.36%), Barinthus Biotherapeutics plc (0.14%), Akari Therapeutics, Plc (0.42%), LAVA Therapeutics (0.81%), Coeptis Therapeutics Holdings, Inc. (2.14%), Scilex Holding (5.79%), SCYNEXIS, Inc. (1.64%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: Spotify Technology S.A. ($4.67 billion), Charter Communications, Inc. ($4.58 billion), Capital One Financial Co. ($4.47 billion), The Kroger Co. ($2.56 billion), Reddit, Inc. ($2.23 billion), Rivian Automotive, Inc. ($2.16 billion), Live Nation Entertainment, Inc. ($1.90 billion), SoFi Technologies, Inc. ($1.85 billion), Zscaler, Inc. ($1.75 billion), and Omnicom Group Inc. ($1.75 billion). View all of the most shorted stocks. What does it mean to sell short Biomerica stock? Short selling BMRA is an investing strategy that aims to generate trading profit from Biomerica as its price is falling. BMRA shares are trading up $0.07 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 Biomerica? A short squeeze for Biomerica 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 BMRA, which in turn drives the price of the stock up even further. How often is Biomerica'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 BMRA, twice per month. The most recent reporting period available is April, 30 2025. More Short Interest Resources from MarketBeat Related Companies ALGS Short Squeeze ESLA Short Squeeze ATHE Short Squeeze FBLG Short Squeeze BRNS Short Squeeze AKTX Short Squeeze LVTX Short Squeeze COEP Short Squeeze SCLX Short Squeeze SCYX 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:BMRA) was last updated on 5/27/2025 by MarketBeat.com Staff From Our PartnersWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... A single announcement by July 22nd could soon b...Altimetry | SponsoredJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. 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