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Aehr Test Systems (AEHR) Short Interest Ratio & Short Volume

Aehr Test Systems logo
$86.26 +9.99 (+13.10%)
As of 04:00 PM Eastern
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Aehr Test Systems Short Interest Overview

As of August 14, 2026, Aehr Test Systems (AEHR) had a short interest of 4.34 million shares sold short, representing 14.28% of the public float. This marks a 1.16% increase in short interest since the prior report. The short interest ratio (days to cover) is 1.7, meaning it would take 1.7 days of the average trading volume of 2.45 million shares to cover all short positions.

Current Short Interest
4,342,530 shares
Previous Short Interest
4,292,682 shares
Change Vs. Previous Month
1.16%
Dollar Volume Sold Short
$582.16 million
Short Interest Ratio
1.7 Days to Cover
Last Record Date
August 14, 2026
Outstanding Shares
32,620,000 shares
Short Percent of Float
14.28%
Today's Trading Volume
4,500,630 shares
Average Trading Volume
2,451,214 shares
Today's Volume Vs. Average
184%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

AEHR Short Interest Over Time

AEHR Days to Cover Over Time

AEHR Percentage of Float Shorted Over Time

Aehr Test Systems Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
8/14/20264,342,530 shares $582.16 million +1.2%14.3%1.7 $134.06
7/31/20264,292,682 shares $343.33 million -10.8%14.1%1.39 $79.98
7/15/20264,811,203 shares $422.38 million +15.5%16.4%1.43 $87.79
6/30/20264,164,166 shares $400.01 million +4.1%14.2%2.9 $96.06
6/15/20264,002,010 shares $463.75 million -2.4%13.7%2.05 $115.88
5/29/20264,101,815 shares $378.72 million -14.3%14.0%1.77 $92.33
5/15/20264,786,767 shares $476.28 million +1.5%16.3%1.74 $99.50
4/30/20264,716,602 shares $427.14 million -15.0%16.1%1.21 $90.56
4/15/20265,550,171 shares $406.38 million +35.8%18.9%1.07 $73.22
3/31/20264,088,490 shares $151.60 million -7.8%13.9%2.7 $37.08
3/13/20264,432,991 shares $158.12 million -8.3%15.5%2.22 $35.67
2/27/20264,833,463 shares $180.92 million -4.3%16.5%3.56 $37.43
2/13/20265,051,480 shares $145.68 million +9.4%17.2%3.27 $28.84
1/30/20264,617,312 shares $118.39 million -1.4%16.2%3.82 $25.64
1/15/20264,682,039 shares $124.21 million -2.8%16.4%3.44 $26.53
12/31/20254,814,704 shares $97.21 million -0.2%17.2%9.56 $20.19
12/15/20254,824,545 shares $110.58 million -5.0%17.3%8.51 $22.92
11/28/20255,079,433 shares $116.40 million +2.1%18.2%7.13 $22.92
11/14/20254,973,671 shares $101.16 million +1.6%17.8%4.8 $20.34
10/31/20254,895,591 shares $127.24 million +3.7%17.5%3.26 $25.99
10/15/20254,720,000 shares $138.06 million -6.5%16.9%2.6 $29.25
9/30/20255,050,000 shares $152.06 million -10.3%N/A2.7 $30.11
9/15/20255,630,000 shares $162.03 million -0.2%N/A3.1 $28.78
8/31/20255,640,000 shares $140.72 million -2.3%20.1%3.2 $24.95
8/15/20255,770,000 shares $105.65 million -0.9%N/A3.5 $18.31
7/31/20255,820,000 shares $98.36 million -11.6%20.7%4.5 $16.90
7/15/20256,580,000 shares $92.45 million +0.3%N/A5.6 $14.05
6/30/20256,560,000 shares $84.82 million -2.1%23.5%6.3 $12.93
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
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
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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 $23.56
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
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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 $13.65
9/15/20211,360,000 shares $14.70 million -1.5%6.7%0.2 $10.81

AEHR Short Interest - Frequently Asked Questions

Short interest is the volume of Aehr Test Systems shares that have been sold short but have not yet been closed out or covered. As of August 14th, traders have sold 4,342,530 shares of AEHR short. 14.28% of Aehr Test Systems' shares are currently sold short. Learn More on Aehr Test Systems' current short interest.

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 1.7. Learn More on Aehr Test Systems's short interest ratio.

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. 14.28% of Aehr Test Systems' floating shares are currently sold short.

Aehr Test Systems saw a increase in short interest in August. As of August 14th, there was short interest totaling 4,342,530 shares, an increase of 1.2% from the previous total of 4,292,682 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.

14.28% of Aehr Test Systems' shares are currently sold short. Here is how the short interest of companies in the industry of "semiconductors & semiconductor equipment" compare to Aehr Test Systems: FormFactor, Inc. (3.51%), Camtek Ltd. (35.49%), Enphase Energy, Inc. (16.80%), ACM Research, Inc. (6.72%), Kulicke and Soffa Industries, Inc. (3.93%), AXT Inc (17.44%), Axcelis Technologies, Inc. (5.48%), Ultra Clean Holdings, Inc. (7.17%), Veeco Instruments Inc. (9.94%), Cohu, Inc. (19.50%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($71.57 billion), Invesco QQQ ($46.97 billion), iShares Russell 2000 ETF ($24.02 billion), Nebius Group N.V. ($15.37 billion), Sandisk Corporation ($12.60 billion), SPDR S&P Biotech ETF ($12.14 billion), Western Digital Corporation ($10.32 billion), iShares 20+ Year Treasury Bond ETF ($8.38 billion), VanEck Semiconductor ETF ($7.62 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.07 billion). View all of the most shorted stocks.

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 down $3.97 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.

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.

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 August, 14 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like AEHR:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


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Short Interest Tools

Short interest data for NASDAQ:AEHR is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/25/2026. FINRA publishes updated short interest twice a month.
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