Volatility is a statistical measure of the dispersion of returns for a given security or market index, it shows how the price swings around its mean. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year. In most cases, the higher the volatility, the riskier the security.
As of today (2026-06-25), Aehr Test Systems's Volatility is 150.39%.
Aehr Test Systems (NAS:AEHR) Volatility Explanation
Volatility is a statistical measure of the dispersion of returns for a given security or market index. It’s often measured as standard deviation or variance of historical returns over a certain period. The volatility here is measured as the annualized standard deviation between monthly returns from the security over the past year.
Volatility reflects the uncertainty or risk of a security’s value. Generally speaking, a higher volatility suggests a higher risk, because it implies a wider fluctuation around average price. This means the price of the security can change dramatically in either direction within a short period. Conversely, a lower volatility means that the security's price is more steady, which suggests a lower risk.
Another measurement of relative volatility is Beta. Beta is a measure of systematic risk of a security or a portfolio in comparison to the market as a whole. Beta is usually compared to 1. A beta of greater than 1 indicates that the security's price will be more volatile than the market.
Aehr Test Systems Volatility Related Terms
AEHR vs AMBA, ICHR, COHU: Volatility Comparison
For the Semiconductor Equipment & Materials subindustry, Aehr Test Systems's Volatility, along with its competitors' market caps and Volatility data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Aehr Test Systems Volatility vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Aehr Test Systems's Volatility distribution charts can be found below:
* The bar in red indicates where Aehr Test Systems's Volatility falls into.
Aehr Test Systems (NAS:AEHR) Volatility Calculation
The annualized volatility is calculated as following:
σA
=
σM
*
√12
=
√ 1/(n-1) ∑(Ri - R')^2
*
√12
Where: σM is the monthly volatility, n is the number of months in the period, Ri is the security's historical monthly returns and R' is the arithmetic mean of monthly returns.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Aehr Test Systems (AEHR) has a Volatility of 150.39% as of Jun. 25, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Aehr Test Systems and its competitors.
Is Aehr Test Systems' Volatility too high?
Aehr Test Systems' current Volatility is 150.39%. Overall, Aehr Test Systems has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aehr Test Systems' Volatility compare to AMBA and ICHR?
Aehr Test Systems' Volatility of 150.39% can be compared against companies in the Semiconductors industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Volatility for a Semiconductors company?
A good Volatility depends on the Semiconductors industry context. However, Volatility should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Volatility mean?
A high Volatility can signal that a stock is expensive relative to its fundamentals. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Aehr Test Systems and its competitors. Aehr Test Systems's current Volatility is 150.39%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aehr Test Systems stock overvalued right now?
Based on GuruFocus' analysis, Aehr Test Systems (AEHR) is currently considered Significantly Overvalued. The stock's GF Value™ is $14.36, compared to a current price of $98.79 — trading 588% above its estimated fair value. The current Volatility is 150.39%. Aehr Test Systems' overall GF Score™ is 62/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Volatility calculated?
Volatility is calculated from a company's financial statements. For Aehr Test Systems (AEHR), the current Volatility is 150.39% as of Jun. 25, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Aehr Test Systems (AEHR) Overvalued in 2026?
Based on GuruFocus' analysis, Aehr Test Systems stock appears to be overvalued.
The current stock price of $98.79 is trading 588% above its estimated GF Value™ of $14.36.
GuruFocus considers Aehr Test Systems to be Significantly Overvalued.
Key valuation signals for AEHR:
Volatility: 150.39%
GF Value™: $14.36 vs. price of $98.79 (588% above fair value)
No single metric tells the full story. See the AEHR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aehr Test Systems is engaged in test systems for burning-in and testing logic, optical, and memory integrated circuits. Increased quality and reliability needs of the Automotive and Mobility integrated circuit markets. The Company operates in one business segment, the designing, manufacturing, marketing and selling of advanced test and burn-in products to the semiconductor manufacturing industry in several geographic areas. The company provides production solutions across the product manufacturing flow to improve yield and reliability and has developed and introduced several inventive products, including the ABTSTM and FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX-XP WaferPak Contactor, FOX DiePak Carrier and FOX DiePak Loader.
62GF Score
Get the complete analysis for AEHR
Volatility is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
AEHR has been successfully added to your 