As of today (2026-06-24), Proto Labs's share price is $79.83. Proto Labs's GF Value is $44.14. Therefore, Proto Labs's Price-to-GF-Value for today is 1.81. Based on the relationship between the current stock price and the GF Value, GuruFocus believes Proto Labs is Significantly Overvalued.
The GF Value represents the intrinsic value of a stock, determined using GuruFocus' proprietary methodology. The GF Value Line on our stock Summary page provides an estimate of the stock’s fair-trading value.
To calculate this value, GuruFocus follows these steps:
We analyze historical correlations between the stock price and key business performance metrics, such as revenue, earnings, cash flow, and book value.
We identify the metrics that have the strongest historical correlation with the stock price and determine the historical multiples at which the stock has traded relative to these metrics.
Using these historical multiples as a reference, we estimate the stock's fair value while accounting for future business growth. Adjustments may be made based on the company’s past returns and growth trends.
GuruFocus believes that the GF Value Line represents the fair value at which a stock should trade. Stock prices typically fluctuate around this line. If a stock’s price is significantly above the GF Value Line, it is considered overvalued, and its future returns are likely to be lower. Conversely, if the stock price is significantly below the GF Value Line, its future returns are likely to be higher.
Proto Labs (NYSE:PRLB) GF Value Explanation
Based on the relationship between the current stock price and the GF Value, GuruFocus provides the following 6 ratings:
(1) These are some simple examples. You can access our GF Valuation filter under All-in-One Screener’s Fundamental tab, and Price-to-GF-Value filter under Valuation Ratio tab and set your own criteria.
(2) A sufficient margin of safety exists only when the stock is undervalued.
Possible Value Trap, Think Twice companies are those that appear significantly undervalued based on their Price-to-GF-Value ratio, but whose fundamentals show signs of weakness.
Indicators that a company may be a value trap include:
* Deteriorating Financial Health: A low Altman Z-scores indicates a higher risk of bankruptcy, or a low Piotroski F-Score. * Earnings Manipulation: A high Beneish M-score indicates potential earnings manipulation, raising concerns about the reliability of reported financials. * Stagnant or Declining Growth: Lack of revenue or earnings growth, or a recent slowdown, may signal limited future prospects.
Investors should conduct thorough due diligence, examining financial statements and growth indicators, to avoid falling into value traps.
Proto Labs's Price-to-GF-Value for today is calculated as
Price-to-GF-Value
=
Share Price
/
GF Value
=
79.83
/
44.14
=
1.81
* 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 (PRLB) has a GF Value of $44.14 as of Jun. 24, 2026. GF Value represents the current intrinsic value of a stock derived from our exclusive method. View historical data on Proto Labs and its competitors.
Is Proto Labs' GF Value too high?
Proto Labs' current GF Value is $44.14. Overall, Proto Labs has a GF Score™ of 67/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Proto Labs' GF Value compare to RYZ and WOR?
Proto Labs' GF Value of $44.14 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 GF Value for an Industrial Products company?
A good GF Value depends on the Industrial Products industry context. However, GF Value 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 GF Value mean?
A high GF Value can signal that a stock is expensive relative to its fundamentals. GF Value represents the current intrinsic value of a stock derived from our exclusive method. View historical data on Proto Labs and its competitors. Proto Labs's current GF Value is $44.14. 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 (PRLB) is currently considered Significantly Overvalued. The stock's GF Value™ is $44.14, compared to a current price of $79.83 — trading 80.9% above its estimated fair value. The current GF Value is $44.14. Proto Labs' overall GF Score™ is 67/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Value calculated?
GF Value is calculated from a company's financial statements. For Proto Labs (PRLB), the current GF Value is $44.14 as of Jun. 24, 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 (PRLB) Overvalued in 2026?
Based on GuruFocus' analysis, Proto Labs stock appears to be overvalued.
The current stock price of $79.83 is trading 80.9% above its estimated GF Value™ of $44.14.
GuruFocus considers Proto Labs to be Significantly Overvalued.
Key valuation signals for PRLB:
GF Value: $44.14
GF Value™: $44.14 vs. price of $79.83 (80.9% above fair value)
No single metric tells the full story. See the PRLB 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.
67GF Score
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