Proto Labs (WBO:PRLB) PEG Ratio: N/A (As of Jun. 28, 2026)


WBO:PRLB Proto Labs Inc WBO:PRLB
62 GF Score
Price €70.20
GF Value €38.42
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Proto Labs PEG Ratio?

PE Ratio without NRI / 5-Year EBITDA Growth Rate*

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, Proto Labs's PE Ratio without NRI is 50.04. Proto Labs's 5-Year EBITDA growth rate is -6.00%. Therefore, Proto Labs's PEG Ratio for today is N/A.

* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.


The historical rank and industry rank for Proto Labs's PEG Ratio or its related term are showing as below:


During the past 13 years, Proto Labs's highest PEG Ratio was 36.31. The lowest was 1.71. And the median was 3.80.


WBO:PRLB's PEG Ratio is not ranked *
in the Industrial Products industry.
Industry Median: 1.86
* Ranked among companies with meaningful PEG Ratio only.

Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.


Proto Labs  (WBO:PRLB) PEG Ratio Explanation

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.


Proto Labs PEG Ratio Related Terms


Proto Labs PEG Ratio Historical Data

* Premium members only.

The historical data trend for Proto Labs's PEG Ratio can be seen below:

* 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 PEG Ratio Chart

Proto Labs Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PEG Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Proto Labs Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
PEG Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

WBO:PRLB vs RYZ, WOR, MEC: PEG Ratio Comparison

For the Metal Fabrication subindustry, Proto Labs's PEG Ratio, along with its competitors' market caps and PEG Ratio 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 PEG Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Proto Labs's PEG Ratio distribution charts can be found below:

* The bar in red indicates where Proto Labs's PEG Ratio falls into.


WBO:PRLB
62GF Score
Proto Labs Inc WBO:PRLB
PEG Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Proto Labs PEG Ratio Calculation

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The ratio we use is the 5-Year EBITDA growth rate.

Proto Labs's PEG Ratio for today is calculated as

PEG Ratio=PE Ratio without NRI/5-Year EBITDA Growth Rate*
=50.035637918746/-6.00
=N/A

* 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.

* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.

Is Proto Labs (WBO:PRLB) Overvalued in 2026?

Based on GuruFocus' analysis, Proto Labs stock appears to be overvalued. The current stock price of €70.20 is trading 82.7% above its estimated GF Value™ of €38.42. GuruFocus considers Proto Labs to be Significantly Overvalued.

Key valuation signals for WBO:PRLB:

  • PEG Ratio: N/A
  • GF Value™: €38.42 vs. price of €70.20 (82.7% above fair value)
  • GF Score™: 62/100 with 7 warning signs

No single metric tells the full story. See the WBO:PRLB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Proto Labs Business Description

Other Exchanges PRLB:USA0KRR:UKPRZ:Germany
Address 5540 Pioneer Creek Drive, Maple Plain, MN, USA, 55359
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.
62GF Score

Get the complete analysis for WBO:PRLB

PEG Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€70.20
Price
€38.42
GF Value