Aehr Test Systems (AEHR) Short Interest Ratio & Short Volume $12.93 +0.41 (+3.27%) As of 04:00 PM Eastern Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Aehr Test Systems Short Interest DataAehr Test Systems (AEHR) has a short interest of 6.70 million shares, representing 23.99% of the float (the number of shares available for trading by the public). This marks a -7.59% decrease in short interest from the previous month. The short interest ratio (days to cover) is 9.3, indicating that it would take 9.3 days of the average trading volume of 1.18 million shares to cover all short positions.Current Short Interest6,700,000 sharesPrevious Short Interest7,250,000 sharesChange Vs. Previous Month-7.59%Dollar Volume Sold Short$75.84 millionShort Interest Ratio9.3 Days to CoverLast Record DateJune 15, 2025Outstanding Shares29,770,000 sharesShort Percent of Float23.99%Today's Trading Volume1,632,075 sharesAverage Trading Volume1,176,917 sharesToday's Volume Vs. Average139% Short Selling Aehr Test Systems? Sign up to receive the latest short interest report for Aehr Test Systems and its competitors with MarketBeat's FREE newsletter. Email Address Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAEHR Short Interest Over TimeAEHR Days to Cover Over TimeAEHR Percentage of Float Shorted Over Time Aehr Test Systems Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 6/15/20256,700,000 shares $75.84 million -7.6%24.0%9.3 $11.32 5/31/20257,250,000 shares $69.09 million +4.5%26.0%10 $9.53 5/15/20256,940,000 shares $64.47 million -3.1%24.9%9.3 $9.29 4/30/20257,160,000 shares $61.07 million -1.8%N/A9.1 $8.53 4/15/20257,290,000 shares $62.26 million +11.8%26.2%8.2 $8.54 3/31/20256,520,000 shares $47.53 million -6.1%23.4%5.8 $7.29 3/15/20256,940,000 shares $64.82 million -3.2%24.9%6.1 $9.34 2/28/20257,170,000 shares $69.12 million -0.8%25.7%5.6 $9.64 2/15/20257,230,000 shares $77.51 million +10.4%25.9%5.9 $10.72 1/31/20256,550,000 shares $74.21 million -6.3%N/A5.3 $11.33 Get the Latest News and Ratings for AEHR and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Aehr Test Systems and its competitors with MarketBeat's FREE daily newsletter. 1/15/20256,990,000 shares $90.45 million +7.9%N/A5.3 $12.94 12/31/20246,480,000 shares $107.76 million No ChangeN/A4.6 $16.63 12/15/20246,480,000 shares $74.71 million +1.6%N/A4.9 $11.53 11/30/20246,380,000 shares $75.86 million -2.2%N/A5.5 $11.89 11/15/20246,520,000 shares $70.29 million +4.3%N/A5.6 $10.78 10/31/20246,250,000 shares $88 million +15.1%N/A5.4 $14.08 10/15/20245,430,000 shares $79.12 million +3.0%N/A4.6 $14.57 9/30/20245,270,000 shares $67.72 million +4.8%N/A3.7 $12.85 9/15/20245,030,000 shares $65.09 million -1.0%N/A3.4 $12.94 8/31/20245,080,000 shares $77.27 million +0.4%N/A3.5 $15.21 8/15/20245,060,000 shares $74.58 million +10.7%N/A3.4 $14.74 7/31/20244,570,000 shares $86.24 million -25.6%N/A3.1 $18.87 7/15/20246,140,000 shares $100.88 million +5.0%N/A4.7 $16.43 6/30/20245,850,000 shares $65.34 million +0.7%N/A6.1 $11.17 6/15/20245,810,000 shares $76.75 million -10.3%N/A5.9 $13.21 5/31/20246,480,000 shares $74.58 million +3.9%N/A6.4 $11.51 5/15/20246,240,000 shares $70.82 million +3.7%N/A6.1 $11.35 4/30/20246,020,000 shares $72.12 million +4.2%N/A5 $11.98 4/15/20245,780,000 shares $66.76 million +3.0%N/A4.3 $11.55 3/31/20245,610,000 shares $69.56 million -5.2%N/A3.4 $12.40 3/15/20245,920,000 shares $84.18 million -0.7%N/A3.6 $14.22 2/29/20245,960,000 shares $96.97 million -2.0%N/A3.9 $16.27 2/15/20246,080,000 shares $110.35 million +1.0%N/A4 $18.15 1/31/20246,020,000 shares $89.40 million -1.5%N/A4.2 $14.85 1/15/20246,110,000 shares $106.74 million -0.8%N/A4.4 $17.47 12/31/20236,160,000 shares $163.42 million +11.8%N/A4.8 $26.53 12/15/20235,510,000 shares $152.30 million -0.4%N/A4.7 $27.64 11/30/20235,530,000 shares $126.97 million -9.3%N/A5.1 $22.96 11/15/20236,100,000 shares $159.03 million -8.3%N/A5.6 $26.07 10/31/20236,650,000 shares $156.67 million +10.1%N/A6 $23.56Is Elon's empire crumbling? (Ad)The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... Jeff Brown has uncovered a revolutionary AI breakthrough buried inside Tesla's labs. One that is helping AI escape from our computer screens and manifest itself here in the real world all while creating a 25,000% growth market explosion starting as early as July 23rd. Click here to see the Tesla shock that could blindside everyone. 10/15/20236,040,000 shares $233.99 million +22.0%N/A6 $38.74 9/30/20234,950,000 shares $226.22 million +2.3%N/A4.3 $45.70 9/15/20234,840,000 shares $227.82 million -12.2%N/A4.6 $47.07 8/31/20235,510,000 shares $281.07 million +6.0%N/A4.8 $51.01 8/15/20235,200,000 shares $226.88 million +2.6%N/A4.4 $43.63 7/31/20235,070,000 shares $264.45 million -15.2%N/A4.4 $52.16 7/15/20235,980,000 shares $292.78 million +24.1%N/A5 $48.96 6/30/20234,820,000 shares $198.83 million -7.7%N/A4.8 $41.25 6/15/20235,220,000 shares $220.34 million +14.0%N/A4.3 $42.21 5/31/20234,580,000 shares $151.23 million -4.6%N/A3.7 $33.02 5/15/20234,800,000 shares $139.97 million +3.5%N/A3.6 $29.16 4/30/20234,640,000 shares $114.84 million -10.1%N/A3.2 $24.75 4/15/20235,160,000 shares $149.23 million +17.0%N/A3.3 $28.92 3/31/20234,410,000 shares $136.80 million -8.5%N/A2.6 $31.02 3/15/20234,820,000 shares $144.70 million +7.4%N/A2.9 $30.02 2/28/20234,490,000 shares $149.74 million +7.4%N/A2.8 $33.35 2/15/20234,180,000 shares $146.72 million -3.9%N/A2.9 $35.10 1/31/20234,350,000 shares $152.08 million +6.6%N/A2.8 $34.96 1/15/20234,080,000 shares $119.30 million -10.9%N/A2.4 $29.24 12/30/20224,580,000 shares $92.06 million -2.1%N/A2.4 $20.10 12/15/20224,680,000 shares $108.62 million -2.9%N/A2.8 $23.21 11/30/20224,820,000 shares $125.66 million +19.3%N/A2.8 $26.07 11/15/20224,040,000 shares $103.63 million -7.1%N/A2.3 $25.65 10/31/20224,350,000 shares $89.48 million +26.5%N/A2.5 $20.57 10/15/20223,440,000 shares $50.81 million +16.2%N/A2.1 $14.77 9/30/20222,960,000 shares $41.74 million +26.0%N/A2.1 $14.10 9/15/20222,350,000 shares $39.74 million +24.3%N/A2 $16.91 8/31/20221,890,000 shares $27.48 million -3.1%N/A1.9 $14.54 8/15/20221,950,000 shares $36.08 million +29.1%N/A2.5 $18.50 7/31/20221,510,000 shares $17.23 million +49.5%N/A2.5 $11.41 7/15/20221,010,000 shares $8.27 million -1.9%N/A2.1 $8.19 6/30/20221,030,000 shares $7.73 million -14.2%N/A2.6 $7.50 6/15/20221,200,000 shares $9.70 million -18.9%N/A2.6 $8.08 5/31/20221,480,000 shares $12.40 million -10.3%N/A2.7 $8.38 5/15/20221,650,000 shares $13.25 million -6.8%N/A2.7 $8.03 4/30/20221,770,000 shares $13.59 million -8.3%N/A2.7 $7.68 4/15/20221,930,000 shares $17.35 million -4.0%N/A2.6 $8.99 3/31/20222,010,000 shares $20.42 million -6.9%N/A2.1 $10.16 3/15/20222,160,000 shares $20.17 million -4.9%N/A1.9 $9.34 2/28/20222,270,000 shares $30.87 million -4.2%N/A1.9 $13.60 2/15/20222,370,000 shares $34.32 million +13.9%N/A1.9 $14.48 1/31/20222,080,000 shares $26.52 million -5.5%N/A1.4 $12.75 1/15/20222,200,000 shares $29.44 million -0.5%N/A1.3 $13.38 12/31/20212,210,000 shares $53.44 million +67.4%N/A1.1 $24.18 12/15/20211,320,000 shares $21.62 million +39.1%N/A0.4 $16.38 11/30/2021949,300 shares $16.54 million -23.4%N/A0.3 $17.42 11/15/20211,240,000 shares $31.12 million -23.0%N/A0.3 $25.10 10/29/20211,610,000 shares $36.42 million -25.5%N/A0.4 $22.62 10/15/20212,160,000 shares $45.68 million +55.4%N/A0.5 $21.15 9/30/20211,390,000 shares $18.97 million +2.2%6.5%0.2 $13.65Is Elon's empire crumbling? (Ad)The Tesla Shock Nobody Sees Coming While headlines scream "Tesla is doomed"... Jeff Brown has uncovered a revolutionary AI breakthrough buried inside Tesla's labs. One that is helping AI escape from our computer screens and manifest itself here in the real world all while creating a 25,000% growth market explosion starting as early as July 23rd. Click here to see the Tesla shock that could blindside everyone. 9/15/20211,360,000 shares $14.70 million -1.5%6.7%0.2 $10.81 8/31/20211,380,000 shares $10.29 million +41.6%6.8%0.2 $7.46 8/13/2021974,500 shares $5.53 million -17.4%4.9%0.2 $5.67 7/30/20211,180,000 shares $6.63 million +526.0%5.9%0.2 $5.62 7/15/2021188,500 shares $529.69 thousand +82.5%1.0%0 $2.81 6/30/2021103,300 shares $285.11 thousand -30.3%0.5%0.3 $2.76 6/15/2021148,300 shares $391.51 thousand -53.2%0.7%0.4 $2.64 5/28/2021317,000 shares $713.25 thousand -5.8%1.6%0.9 $2.25 5/14/2021336,400 shares $662.71 thousand +17.1%1.7%0.9 $1.97 4/30/2021287,300 shares $663.66 thousand +18.6%1.4%0.7 $2.31 4/15/2021242,300 shares $547.60 thousand +16.6%1.2%0.5 $2.26 3/31/2021207,900 shares $494.80 thousand +14.4%1.1%0.4 $2.38 3/15/2021181,800 shares $465.41 thousand -28.1%0.9%0.4 $2.56 2/26/2021252,900 shares $733.41 thousand +30.8%1.3%0.4 $2.90 2/12/2021193,400 shares $618.88 thousand +22.7%1.0%0.3 $3.20 1/29/2021157,600 shares $384.54 thousand +29.3%0.8%0.4 $2.44 1/15/2021121,900 shares $262.09 thousand +51.2%0.6%0.3 $2.15 12/31/202080,600 shares $188.60 thousand -55.3%0.4%0.2 $2.34 12/15/2020180,200 shares $369.41 thousand +364.4%0.9%0.5 $2.05 11/30/202038,800 shares $66.15 thousand -20.2%0.2%0.1 $1.71 11/15/202048,600 shares $75.82 thousand -5.8%0.3%0.3 $1.56 10/30/202051,600 shares $60.89 thousand -22.2%0.3%0.3 $1.18 10/15/202066,300 shares $95.47 thousand -34.7%0.3%0.5 $1.44 9/30/2020101,600 shares $141.22 thousand -11.7%0.5%0.6 $1.39 9/15/2020115,000 shares $165.60 thousand +35.5%0.6%0.9 $1.44 8/31/202084,900 shares $151.12 thousand -18.0%0.4%0.8 $1.78 8/14/2020103,500 shares $215.28 thousand -2.0%0.5%1.1 $2.08 7/31/2020105,600 shares $216.48 thousand -9.0%0.5%1.2 $2.05 7/15/2020116,000 shares $215.76 thousand -5.0%0.6%1.4 $1.86 6/30/2020122,100 shares $238.10 thousand -6.4%0.6%2.3 $1.95 AEHR Short Interest - Frequently Asked Questions What is Aehr Test Systems' current short interest? Short interest is the volume of Aehr Test Systems shares that have been sold short but have not yet been covered or closed out. As of June 15th, traders have sold 6,700,000 shares of AEHR short. 23.99% of Aehr Test Systems' shares are currently sold short. Learn More on Aehr Test Systems' current short interest. What is a good short interest ratio for Aehr Test Systems? 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. AEHR shares currently have a short interest ratio of 9.0. Learn More on Aehr Test Systems's short interest ratio. Which institutional investors are shorting Aehr Test Systems? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Aehr Test Systems: Jane Street Group LLC, Sculptor Capital LP, Walleye Trading LLC, Walleye Capital LLC, Simplex Trading LLC, and National Bank of Canada FI. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. What is a good short interest percentage for Aehr Test Systems? 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. 23.99% of Aehr Test Systems' floating shares are currently sold short. Is Aehr Test Systems' short interest increasing or decreasing? Aehr Test Systems saw a decline in short interest in June. As of June 15th, there was short interest totaling 6,700,000 shares, a decline of 7.6% from the previous total of 7,250,000 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. How does Aehr Test Systems' short interest compare to its competitors? 23.99% of Aehr Test Systems' shares are currently sold short. Here is how the short interest of companies in the industry of "measuring and control equipment" compare to Aehr Test Systems: 10x Genomics (12.04%), Transcat, Inc. (5.13%), Allient Inc. (1.93%), Eyepoint Pharmaceuticals, Inc. (10.25%), Standard BioTools Inc. (4.42%), Cytek Biosciences, Inc. (4.44%), Senseonics Holdings, Inc. (8.14%), Quantum-Si Incorporated (17.52%), Quanterix Corporation (9.88%), 908 Devices Inc. (8.87%), 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 ($69.26 billion), Invesco QQQ ($25.22 billion), iShares Russell 2000 ETF ($20.33 billion), iShares 20+ Year Treasury Bond ETF ($9.99 billion), MicroStrategy Incorporated ($9.12 billion), Canadian Natural Resources Limited ($6.73 billion), SPDR S&P Biotech ETF ($6.52 billion), Invesco S&P 500 Equal Weight ETF ($5.60 billion), Financial Select Sector SPDR Fund ($4.64 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($4.59 billion). View all of the most shorted stocks. What does it mean to sell short Aehr Test Systems stock? Short selling AEHR is an investing strategy that aims to generate trading profit from Aehr Test Systems as its price is falling. AEHR shares are trading up $0.41 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 Aehr Test Systems? A short squeeze for Aehr Test Systems 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 AEHR, which in turn drives the price of the stock up even further. How often is Aehr Test Systems' 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 AEHR, twice per month. The most recent reporting period available is June, 15 2025. More Short Interest Resources from MarketBeat Related Companies 10x Genomics Short Squeeze Transcat Short Squeeze Allient Short Squeeze Eyepoint Pharmaceuticals Short Squeeze Standard BioTools Short Squeeze Cytek Biosciences Short Squeeze Senseonics Short Squeeze Quantum-Si Short Squeeze Quanterix Short Squeeze 908 Devices 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:AEHR) was last updated on 6/30/2025 by MarketBeat.com Staff From Our PartnersAI Meltdown Imminent: Dump These Stocks Now!If you have any money in the markets, especially in AI stocks… Please click here to see Elon Musk’s new inv...Paradigm Press | SponsoredThis Crypto Is Set to Explode in JanuaryFree summit: How to profit from the Coinbase-Deribit deal Our hedge fund experts know exactly what this mea...Crypto 101 Media | Sponsored379 passengers walked away from thisElon Musk just wrote a $51 million check to back this material’s next phase… Because it’s not just saving l...True Market Insiders | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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