Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
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.
Advanced Energy Industries (NAS:AEIS) 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.
Advanced Energy Industries Volatility Related Terms
AEIS vs AYI, FPS, POWL: Volatility Comparison
For the Electrical Equipment & Parts subindustry, Advanced Energy Industries'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.
Advanced Energy Industries Volatility vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Advanced Energy Industries's Volatility distribution charts can be found below:
* The bar in red indicates where Advanced Energy Industries's Volatility falls into.
Advanced Energy Industries (NAS:AEIS) 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.
Advanced Energy Industries (AEIS) has a Volatility of 59.63% as of Aug. 08, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Advanced Energy Industries and its competitors.
Is Advanced Energy Industries' Volatility too high?
Advanced Energy Industries' current Volatility is 59.63%. Overall, Advanced Energy Industries has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Advanced Energy Industries' Volatility compare to AYI and FPS?
Advanced Energy Industries' Volatility of 59.63% can be compared against companies in the Industrial Products 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 an Industrial Products company?
A good Volatility depends on the Industrial Products 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 Advanced Energy Industries and its competitors. Advanced Energy Industries's current Volatility is 59.63%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Advanced Energy Industries stock overvalued right now?
Based on GuruFocus' analysis, Advanced Energy Industries (AEIS) is currently considered Significantly Overvalued. The stock's GF Value™ is $147.30, compared to a current price of $324.80 — trading 120.5% above its estimated fair value. The current Volatility is 59.63%. Advanced Energy Industries' overall GF Score™ is 78/100 with 4 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 Advanced Energy Industries (AEIS), the current Volatility is 59.63% as of Aug. 08, 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 Advanced Energy Industries (AEIS) Overvalued in 2026?
Based on GuruFocus' analysis, Advanced Energy Industries stock appears to be overvalued.
The current stock price of $324.80 is trading 120.5% above its estimated GF Value™ of $147.30.
GuruFocus considers Advanced Energy Industries to be Significantly Overvalued.
Key valuation signals for AEIS:
Volatility: 59.63%
GF Value™: $147.30 vs. price of $324.80 (120.5% above fair value)
No single metric tells the full story. See the AEIS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Advanced Energy Industries Inc provides precision power conversion, measurement, and control solutions. The company designs, manufactures, sells, and services power electronics conversion products that transform raw electrical power into controllable, usable power for complex equipment. It operates in one reporting segment, Power Electronics Conversion Products, serving the Semiconductor Equipment, Data Center Computing, Industrial and Medical, and Telecom and Networking markets. Its products include Plasma Power Products, AC-DC Power Supply Units, DC-DC Converters, High Voltage solutions, SCR Power Controllers, and Sense and Measurement solutions. The company operates in the United States, Asia, Europe, and other regions.
78GF Score
Get the complete analysis for AEIS
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
AEIS has been successfully added to your 
