Biomerica (BMRA) Short Interest Ratio & Short Volume $3.16 +0.04 (+1.28%) Closing price 05/29/2025 03:59 PM EasternExtended Trading$3.06 -0.10 (-3.01%) As of 05/29/2025 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 AnalysisChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Biomerica Short Interest DataBiomerica (BMRA) has a short interest of 37,900 shares, representing 1.65% of the float (the number of shares available for trading by the public). This marks a -11.86% decrease in short interest from the previous month. The short interest ratio (days to cover) is 0.9, indicating that it would take 0.9 days of the average trading volume of 276,909 shares to cover all short positions.Current Short Interest37,900 sharesPrevious Short Interest43,000 sharesChange Vs. Previous Month-11.86%Dollar Volume Sold Short$139,093.00Short Interest Ratio0.9 Days to CoverLast Record DateMay 15, 2025Outstanding Shares2,546,000 sharesFloat Size2,300,000 sharesShort Percent of Float1.65%Today's Trading Volume12,616 sharesAverage Trading Volume276,909 sharesToday's Volume Vs. Average5% 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 5/15/202537,900 shares $139,093.00 -11.9%1.7%0.9 $3.67 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 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. 12/15/2024782,800 shares $245,642.64 -45.3%N/A0.9 $0.31 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 $0.86Trump wipes out trillions overnight… (Ad)Is there anybody more powerful than Donald Trump right now? In a single tariff announcement, he wiped out nearly $5 trillion in wealth from the S&P 500 and $6.4 trillion from the Dow Jones… Not to mention the countless trillions of dollars lost in every market around the world… leaving the major political powers scrambling in fear of Trump’s next move.Whether you take some of that wealth for yourself depends on if you watch this controversial exposé 9/15/2023442,800 shares $487,080.00 -7.1%N/A2 $1.10 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 $4.48Buffett’s $325 Billion Cash Problem — Solved by Gold? 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Discover how you could front-run Buffett’s gold move with Garrett’s Top Four picks. 8/13/20211,120,000 shares $4.55 million No Change11.0%6.6 $4.06 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 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 May 15th, traders have sold 37,900 shares of BMRA short. 1.65% of Biomerica's shares are currently sold short. Learn More on Biomerica's current short interest. What is a good short interest ratio for Biomerica? 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. BMRA shares currently have a short interest ratio of 1.0. Learn More on Biomerica's short interest ratio. 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. 1.65% of Biomerica's floating shares are currently sold short. Is Biomerica's short interest increasing or decreasing? Biomerica saw a drop in short interest in the month of May. As of May 15th, there was short interest totaling 37,900 shares, a drop of 11.9% from the previous total of 43,000 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 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 2,300,000 shares. How does Biomerica's short interest compare to its competitors? 1.65% 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: Scilex Holding (5.81%), FibroBiologics, Inc. (5.29%), Marinus Pharmaceuticals, Inc. (3.95%), SCYNEXIS, Inc. (1.74%), Dyadic International, Inc. (0.73%), Allakos Inc. (0.37%), Cadrenal Therapeutics, Inc. (3.86%), Kezar Life Sciences, Inc. (0.87%), MiNK Therapeutics, Inc. (2.20%), Barinthus Biotherapeutics plc (0.10%), 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 ($29.20 billion), Strategy Incorporated ($10.88 billion), iShares 20+ Year Treasury Bond ETF ($10.04 billion), Capital One Financial Co. ($5.51 billion), Charter Communications, Inc. ($5.00 billion), Super Micro Computer, Inc. ($4.43 billion), Apollo Global Management, Inc. ($4.02 billion), Hims & Hers Health, Inc. ($3.65 billion), VanEck Semiconductor ETF ($3.27 billion), and Coinbase Global, Inc. ($3.10 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 $0.04 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 appreciates 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 May, 15 2025. More Short Interest Resources from MarketBeat Related Companies SCLX Short Squeeze FBLG Short Squeeze MRNS Short Squeeze SCYX Short Squeeze DYAI Short Squeeze ALLK Short Squeeze CVKD Short Squeeze KZR Short Squeeze INKT Short Squeeze BRNS 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 5/30/2025 by MarketBeat.com Staff From Our PartnersElon Musk’s Frightening Warning Forces Trump’s HandElon Musk has avoided two major financial crises before. 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