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 (2026-07-13), Proto Labs's Volatility is 36.99%.
Proto Labs (STU:PRZ) 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.
Proto Labs Volatility Related Terms
STU:PRZ vs RYZ, WOR, MEC: Volatility Comparison
For the Metal Fabrication subindustry, Proto Labs'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.
Proto Labs Volatility vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Proto Labs's Volatility distribution charts can be found below:
* The bar in red indicates where Proto Labs's Volatility falls into.
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.
Proto Labs (STU:PRZ) has a Volatility of 36.99% as of Jul. 13, 2026. Volatility is measured as the annualized standard deviation between monthly returns from the security over the past year. View historical data on Proto Labs and its competitors.
Is Proto Labs' Volatility too high?
Proto Labs' current Volatility is 36.99%. Overall, Proto Labs has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proto Labs' Volatility compare to RYZ and WOR?
Proto Labs' Volatility of 36.99% 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 Proto Labs and its competitors. Proto Labs's current Volatility is 36.99%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Proto Labs stock overvalued right now?
Based on GuruFocus' analysis, Proto Labs (STU:PRZ) is currently considered Significantly Overvalued. The stock's GF Value™ is €38.20, compared to a current price of €64.80 — trading 69.6% above its estimated fair value. The current Volatility is 36.99%. Proto Labs' overall GF Score™ is 71/100 with 7 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 Proto Labs (STU:PRZ), the current Volatility is 36.99% as of Jul. 13, 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 Proto Labs (STU:PRZ) Overvalued in 2026?
Based on GuruFocus' analysis, Proto Labs stock appears to be overvalued.
The current stock price of €64.80 is trading 69.6% above its estimated GF Value™ of €38.20.
GuruFocus considers Proto Labs to be Significantly Overvalued.
Key valuation signals for STU:PRZ:
Volatility: 36.99%
GF Value™: €38.20 vs. price of €64.80 (69.6% above fair value)
No single metric tells the full story. See the STU:PRZ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Proto Labs Inc is an on-demand manufacturer of custom parts for prototyping and short-run production. The company offers developers and engineers quick-turn production services to reduce the time to market. The Lab uses injection molding, computer numerical control machining, and 3-D printing, and sheet metal to manufacture custom parts for its clients. The company services clients' needs for prototype solutions, parts for testing procedures, bridge production capabilities during disruptions in manufacturing processes, limited-quantity requests, and end-of-life production support. Geographically, a majority of the company's revenue is derived from the United States and the rest from Europe.
71GF Score
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